Table of Contents · The Lewis formula 1.59kgf/mm2 (40 °C with no lubricant) 1.59kgf/mm2 (40 with...

103
(Example) Spur Gears The Catalog Number for KHK stock gears is based on the simple formula listed below. Please order KHK gears by specifying the Catalog Numbers. Special Characteristics, Points of Caution in Selecting and Using Spur Gears ........................ page 26 MSGA (B) Ground Spur Gears ............................... page 34 SSG Ground Spur Gears ........................................ page 46 SSGS Ground Spur Pinion Shafts .......................... page 58 SS Steel Spur Gears .............................................. page 60 SSA Steel Hubless Spur Gears .............................. page 76 SSY Steel Thin Face Spur Gears ........................... page 82 SSAY Steel Hubless Thin Face Spur Gears ........... page 86 SSAY/K Spur Gears with Built-In Clamps ............... page 88 LS Sintered Metal Spur Gears ................................ page 92 SUS . SUSA Stainless Steel Spur Gears ................. page 94 SUSL Stainless Steel Fairloc Hub Spur Gears ....... page 100 DSL Acetal Fairloc Hub Spur Gears ....................... page 104 NSU Plastic Spur Gears with Steel Core ................ page 108 PU Plastic Spur Gears with Stainless Steel Core ... page 114 PS . PSA Plastic Spur Gears ................................... page 116 DS Injection Molded Spur Gears ............................ page 122 BB Sintered Metal Bushings ................................... page 124 BSS Brass Spur Gears ........................................... page 126 SSR Steel Ring Gears (Spur Gears) ...................... page 127 Table of Contents Catalog Number of KHK Stock Gears Spur Gears M SGA 1 - 18 No. of Teeth(18) Module(1) Type (Ground Spur Gear) Material (SCM415) Material S S45C M SCM415 SU SUS303 P MC901 N MC601-ST D DURACON BS Free-Cutting Brass C3604BD L SMF5040 Type S Spur Gears SA Hubless Spur Gears SY Thin Face Spur Gears SAY Hubless Thin Face Spur Gears SGA(B) Ground Spur Gears SG Ground Spur Gears SL Fairloc Hub Gears SR Ring Gears U Plastic Spur Gears with Steel Core 25 1

Transcript of Table of Contents · The Lewis formula 1.59kgf/mm2 (40 °C with no lubricant) 1.59kgf/mm2 (40 with...

(Example)

Spur GearsThe Catalog Number for KHK stock gears is based on the simple formula listed below.Please order KHK gears by specifying the Catalog Numbers.

Special Characteristics, Points of Caution

in Selecting and Using Spur Gears ........................ page 26

MSGA (B) Ground Spur Gears ............................... page 34

SSG Ground Spur Gears ........................................ page 46

SSGS Ground Spur Pinion Shafts .......................... page 58

SS Steel Spur Gears .............................................. page 60

SSA Steel Hubless Spur Gears .............................. page 76

SSY Steel Thin Face Spur Gears ........................... page 82

SSAY Steel Hubless Thin Face Spur Gears ........... page 86

SSAY/K Spur Gears with Built-In Clamps ............... page 88

LS Sintered Metal Spur Gears ................................ page 92

SUS.SUSA Stainless Steel Spur Gears ................. page 94

SUSL Stainless Steel Fairloc Hub Spur Gears ....... page 100

DSL Acetal Fairloc Hub Spur Gears ....................... page 104

NSU Plastic Spur Gears with Steel Core ................ page 108

PU Plastic Spur Gears with Stainless Steel Core ... page 114

PS.PSA Plastic Spur Gears ................................... page 116

DS Injection Molded Spur Gears ............................ page 122

BB Sintered Metal Bushings ................................... page 124

BSS Brass Spur Gears ........................................... page 126

SSR Steel Ring Gears (Spur Gears) ...................... page 127

Table of Contents

Catalog Number of KHK Stock Gears

Spur Gears

M SGA 1 - 18

No. of Teeth(18)

Module(1)

Type (Ground Spur Gear)

Material (SCM415)

MaterialS S45CM SCM415SU SUS303P MC901N MC601-STD DURACONBS Free-Cutting Brass C3604BD

L SMF5040

TypeS Spur GearsSA Hubless Spur GearsSY Thin Face Spur GearsSAY Hubless Thin Face Spur GearsSGA(B) Ground Spur GearsSG Ground Spur GearsSL Fairloc Hub GearsSR Ring GearsU Plastic Spur Gears with Steel Core

25

1

■ Main Features of Types of Spur Gears Offered

26

With 0ur Large Selection, You Can Find Suitable Gears for Almost Any Application !

CharacteristicsTo meet your requirements, KHK stock gears are made in a variety of types, materials, configurations, modules and numbers of teeth. We also offer products that allow secondary operations to be performed on the bores, shafts, outside diameters, keyways and set screws.

The following table lists the main features

Catalog No.

MSGA(B)

SSG

SSGS

SS

SSA

SSY

SSAY

LS

SUS.SUSA

SUSL

DSL

NSU

PU

PS.PSA

DS

BSS

SSR

1~4

1~4

1.5~3

1~10

1~5

0.8~1.25

1~1.25

0.5~0.8

1~4

0.5~1

0.5~1

1~3

1~3

1~3

0.5~1

0.5~0.8

2~3

N5

N7

N7

N8

N8

N8

N8

(N8)

N8

(N8)

(N10)

N9

N9

N9

(N12)

N8

N9

High strength, abrasion-resistant and compact.

Allows users to perform secondary operations.

Ground shaft pinions that allow modification of shafts to fit your bearings.

Low cost with large selections of modules and numbers of teeth.

Hubless gears for lighter and more compact applications.

Narrower face gears for light-duty applications.

Hubless and narrow faces for even lighter and more compact gears.

Low cost due to elimination of machining and reduction in wasted material.

Stainless steel gears for more rust-resistant gears.

Smaller module gears which clamp to the shafts without any keys or set screws.

These rust-resistant gears can be clamped to the shafts without any keys or set screws.

Nylon teeth with steel hubs that can have keyways and set screws added.

Nylon teeth with stainless steel hubs for rust-resistance.

Possible to operate without lubrication. Suitable for food processing machines.

Low cost, mass-produced products suitable for light duty office machines.

Small module brass spur gears suitable for mating with DS gears.

Allows large gear ratios. Can also be used as segment gears and corner racks.

Carburized

Gear teeth induction hardenedGear teeth induction hardened

Module MaterialHeat

Treatment

Tooth

Surface

Finish

PrecisionJIS B1702-1 ( ) denotes

JIS B1702-2

Secondary

OperationsMain Characteristics

Possible △ Partly possible X Not possible

● By chamfering the corners of the top land, gear noise is reduced, and the chances of damage due to handling and transportation are decreased. All KHK gears larger than m1.5 have their teeth chamfered. ● Black oxide coating is a film of triferotetraoxide (Fe3O4), a kind of rust, which is applied to the gear surface to help resist rusting.

KHK Stock Spur Gears

Ground

Ground

Ground

Cut

Cut

Cut

Cut

Sintered

Cut

Cut

Cut

Cut

Cut

Cut

Injection Molded

Cut

Cut

×SCM415

S45C

S45C

S45C

S45C

S45C

S45C

SMF5040(Equiv. to S45C)

SUS303

SUS303

Acetal(SUS303)

MC601ST(S45C)

MC901(SUS303)

MC901

M90-44

C3604BD-F

S45C

27

Selection HintsPlease select the most suitable products by carefully considering the characteristics of items and contents of the product tables. It is also important to read all applicable “CAUTION” notes before the final selection.Use of catalog numbers when ordering will simplify and expedite the processing of your order.

1.Caution in selecting the mating Gears①Basically, all spur gears, internal gears and racks can be paired as

long as the module matches. The product with different materials, tooth widths, or methods of cutting the teeth can be mated.

②When using a pinion with an internal gear with a small difference in the numbers of teeth, there are possibilities for involute interference, trochoid interference and trimming interference. See the internal gear interference portion of the technical section to avoid problems in assembling these items.

2. Caution in Selecting Gears Based on Gear StrengthThe gear strength values shown in the product pages were computed by assuming a certain application environment. Therefore, they should be used as reference only. We recommend that each user computes his own values by applying the actual usage conditions.NSU spur gears with steel core and PU plastic gears with stainless steel core require additional considerations of holding strength between plastic and metal. Also, SUSL Fairloc hub spur gears, DSL Fairloc hub spur gears and SSAY/K spur gears with built-in clamps need additional considerations of the starting torque. The table below contains the assumptions established for various products in order to compute gear strengths.

Item

Catalog No.MSGA(B) SSG

(SSGS)

SS, SSASSY, SSAYSSAY/KSSR

SUSSUSASUSLLS

BSS NSU PUPS

DSL

DS

Formula NOTE 1

No. of teeth of mating gears

Rotation

Durability

Impact from motor

Impact from load

Direction of load

Allowable bending stresss at rootσFlim NOTE 2

Safety factor SF

Formula of spur and helical gears on bending strength (JGMA401-01)

Same number of teeth (30 for SSR)

Over 107 cycles

Uniform load

Uniform load

Bidirectional

1.2

600min-1 100min-1 100min-1

-

The Lewis formula

1.59kgf/mm2 (40°C with no

lubricant)

1.59kgf/mm2 (40°C with no

lubricant)

NOTE 3

m0.5 4.5m0.8 4.0m1.0 3.5kgf/mm2

Allowable bending stress

31.33kgf/mm2 14(16.67)kgf/mm2 12.67kgf/mm2 7kgf/mm2 2.67kgf/mm2

Formula NOTE 1

Kinematic viscosity of lubricant

Gear support

Allowable Hertz stress σHlim

Safety factor SH

Formula of spur and helical gears on surface durability (JGMA402-01)

100cSt(50°C)

Symmetric support by bearings

1.15

166kgf/mm2 90(99)kgf/mm2 49kgf/mm2 41.3kgf/mm2 -

NOTE 1:JGMA (Japanese Manufacturers’ Association), “MC Nylon Technical Data” of Nippon Polypenco Limited and “Duracon Gear” of Polyplastic Co.

The units for rotat ional speed (rpm) and the load (kgf/mm2) were matched to the units needed in the equation.

NOTE 2:Since the load is bidirectional, the allowable bending stress at root σFlim, calculated from JGMA 401-01, is set to 2/3 of the value.

NOTE 3: The values for DS m 0.5 gears were assumed by KHK.

■ Calculation of Bending Strength of Gears

■ Calculation of Surface Durability (Except where it is common with Bending Strength)

Definition of bending strength

The a l lowable bend ing strength of a gear is defined as the allowable tangential force at the pi tch circ le based on the mu tua l l y allowable root stress of two meshing gears under load.

Definition of surface durability

The surface durability of a gear is defined as the allowable tangential force at the pitch circle, which permits the force to be transmitted safely without incurring surface failure.

Example of the failure due to

insufficient bending strength.Example of the defacement due to insufficient surface durability.

KHKTechnicalInformation

28

3.Caution with Regard to the Special Characteristics of Various Products① MSGA (B) series of ground gears are carburized and therefore

no secondary operations can be performed. Also, even though the keyways are made according to JIS B1301 standard, Js 9 tolerance, the heat treating process may produce some deformations.

②SSGS ground pinion shafts with 10 and 11 teeth are profile shifted gears (x=+0.5) and therefore cannot be assembled to the center distance of gears that are not profile shifted gears (x=0).

③ The black oxide finish is somewhat effective in preventing rust but is not rustproof.

④SUS stainless steel gears have high degrees of antirust property, but are not totally rustproof.

⑤When selecting SUSL Fairloc hub spur gears, it is possible in some cases for the gears to slip on the shaft before the gear teeth fail due to loads.

⑥ When selecting NSU plastic spur gears with steel core, it is possible in some cases for the holding strength between the metal core and the molded plastic to be less than the gear strength. As for details of the holding strength please refer to pages 108~109.

⑦Due to their material, the quality of PS plastic spur gears may be affected by significant variations in temperature or humidity. As for details please refer to pages 32~33.

⑧Due to a large coefficient of heat expansion of nylon, if these gears are to be used without lubrication, we recommend that the mating gears be metal gears, which can transmit heat, preventing temperature build-up.

⑨ SSR ring gears are easily deformable and may develop changes in dimensions.

⑩SSAY, SSY spur gears and DS injection molded spur gears have narrow face widths. However, it is possible to mesh them with other gears (SS, SSA...) with wide face widths.

4. Other Points to Consider in Selection Process ①There are various footnotes to the product pages under the

headings of “CAUTION”. Please consider them carefully when selecting these products.

②There may be slight differences in color or shape of products shown in the photograph from the actual products.

③KHK reserves the right to make changes in specifications and dimensions without notice.

④KHK is ready to produce and supply custom order products. When you require specific gears different from KHK Stock Gears please contact our distributor for quotation. Also, please refer to page 16 “KHK Custom Order Products”.

Spur Gears

29

4. Other Points to Consider in Selection Process

In order to use KHK stock gears safely, carefully read the Application Hints before proceeding. If there are questions or if you require clarifications, please contact our technical department or your nearest distributor.

1. Caution on Performing Secondary Operations MostKHKgearscanbemodifiedbytheuser.Please

notethefollowingpoints.

①If you are reboring, it is important to pay special attention to locating the center in order to avoid runout.

②The reference datum for gear cutting is the bore. Therefore, use the bore for locating the center. If it is too difficult to do for small bores, the alternative is to use one spot on the bore and the runout of the side surface.

③ If the rework requires using scroll chucks, we recommend the use of new or rebored jaws for improved precision. If chucking by the teeth, please apply the pressure carefully to avoid crushing the teeth which will lead to noisy gears.

KHK CO., LTD. TECHNICAL DEPARTMENTPHONE: 81-48-254-1744 FAX: 81-48-254-1765E-mail [email protected]

⑦ Nylon is susceptible to change due to temperature and humidity. Dimensions may change during remachining operations and afterwards.

⑧In order to avoid stress concentration, leave radii on the keyway corners.

Lathe Operations

④ The maximum bore size is dictated by the requirement that the strength of the hub is to be higher than that of the gear teeth.

⑤ MSGA (B) ground spur gears (material SCM415) are wholly carburized so that no secondary operations can be performed.

⑥SSG ground spur gear teeth are induction hardened past the tooth root (approximately 1mm deep). Therefore, care must be exercised when performing secondary operations on the bores or adding keyways.

⑨To avoid problems of reduced gear precision and other manufacturing difficulties, do not attempt to machine the gears to reduce face widths.

⑩The bore tolerance of DS injection molded spur gears is generally -0.10 to -0.05, but may be +values at the central portion of the hole. Remachining the bore is not recommended since reworking may expose voids in the plastic.

SUSL Fairloc gears cannot be rebored. They may be pinned provided caution is exercised not to deform the slots in the hubs.

When heat-treating S45C products, it is possible to get thermal stress cracks. It is best to subject them to penetrant inspection afterwards. If tooth strength is not sufficient, it can be increased approximately four times by heat-treating. On the other hand, the precision of the gear will drop about one grade.

Tapping & Keyway Slotting

Heat Treatment1) Induction heat treatment of S45C products should

conform with the reference data below; ● Heat treatment temperature - 800~900°C ● Tempering temperature - 200~250°C ● Hardness - 48~53HRC

2) In general, gears made from S45C have not been heat-treated. The user can heat-treat as required, but some deformation will be introduced. Ordinarily, a grinding process is needed after heat-treatment. Otherwise, the precision grade will drop about one grade.

3) SUS303 and 304 belong to austenite family and cannot be hardened. To harden stainless, there are martensitic series, such as SUS420J2.

4) The induction hardened depth is approximately 1mm.However, the hardening process does not completely reach the root of the gear tooth at the center portion of the face width.

KHKTechnicalInformation

Application Hints

11

12

30

2. Points of Caution in Assembling①KHK stock spur gears are designed to give the proper backlash

when assembled using the center distance given by the formula below. The amount of backlash is given in the product table for each gear. For SSGS ground gears with 10 or 11 teeth, however, the profile is shifted (x = +0.5) so that the center distances are given in tables below the product table.

② Verify that the two shafts are parallel. Incorrect assembly will lead to uneven teeth contact which will cause noise and wear. (After assembly, the gear mesh can be checked by applying a contact pattern compound and rotating the gears.)

3. Notes on Starting Operations

a=m(Z1+Z2)/2where

a =center distance

m =module

Z1=no. of teeth of pinion

Z2=no. of teeth of gear

③ A gear may slip on the shaft or move axially while in motion if it is not firmly fastened to the shaft. Step shafts, collars and set screws are some of the ways to secure the gears.

④Keyways are generally used as the method of engaging the gears with the axis. There is also a method of the setting with a MACHALOCK,Posi-Lock, and Shupanring, etc. which are parts for engaging the hole and the axis.

⑤ Assembly should be performed cautiously to avoid damage to the gears or injuries to the worker.

This picture is an example of poor tooth contact of an SSG3-30 gear which had only 30% of the gear tooth in proper contact. In this example the gear oil used is equivalent to JIS gear oil category 2, No.3, and the design conditions were 417N.m load torque at 278 min-1 (12 kW) which was 1.5 times the allowable bending strength and 3 times the allowable surface durability torque. The pitting occurred on the poor tooth contact area after 60 hours of continuous operation.

① Before operating, check the following:● Are the gears firmly mounted on the shafts?● Have you eliminated uneven tooth contact?● Does the gear mesh have a proper amount of backlash? (Please avoid the condition of no backlash.)● Is there sufficient lubrication?

②If the gears are exposed, install a safety cover for protection. Never touch gears while they are in motion.

Spur Gears

Poor tooth contact and pitting

■ Center Distance Tolerance Old standard JGMA113-01, Center Distance Tolerance,

specified plus side tolerance of H7 - H8. In the new standard, JGMA1101-01:2000, it was decided that it is more desirable to specify +/- tolerance especially in gear train applications.

■ Method for Adjusting Backlash Backlash may be adjusted by changing the center distance of

mating gears. For more information, please consult the technical section on gear backlash.

■Overall Length Tolerance for Spur and Helical Gears

0.10

- 0.10

0.10

- 0.20

0.10

- 0.15

Tolerance

100

030

UnderOverall Length (mm)

Over

030

100

Following products are excluded from this table:

DS Injection Molded Spur Gears, LS Sintered

Metal Spur Gears, DSL Fairloc Hub Spur Gears,

SUSL Fairloc Hub Spur Gears

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③If there is unusual noise or vibration at the start up or insufficient lubrication after the start up, please recheck the gears and correctness of the assembly. Some of the methods for achieving noise reduction are:(a) High Precision(b) Fine Tooth Surface Finish(c) Accurate Tooth Contact

④The followings are the gear lubrication methods in general use:(a) Grease Lubrication(b) Splash Lubrication (Oil Bath Method)(c) Forced Oil Circulation Lubrication

Check lubrication after start up. Sometimes, when the unit is initially being operated, lubricating oil deteriorates rapidly.

4. Other Points to Consider in Applications① KHK products are individually packaged to avoid damage.

Depending on how they are handled, it is still possible to deform or break them. It is important to exercise care in handling these parts.

②Check the products as they are being taken out of the boxes. If

any of them are rusted, scratched or dented, please return to the dealer where they were bought, for exchange.

③KHK cannot guarantee the precision of gears once the customer performs a secondary operation on them.

Examples of KHK Gear Applications

Automatic packing machine (Spur Gears)

Food handling machine

(Plastic Spur gear)

Electric Component Assembly Line

(SS Spur Gears)

KHKTechnicalInformation

MC901

MC601ST

66Nylon

Polyacetal

Teflon

50 100 150 200

56

120

110

158

66

182

Above 200Above 215

160 200200 215

4.6kgf/cm2

18.6kgf/cm2

D-696

P r o p e r t i e s

Heat conductivity

Coefficient of linear thermal expansion

TestmethodASTM

32

■Thermal Properties

Melting point

■Chemical Resistance Properties

Water Saturation Value (in water)

The quality of plastic gears (MC) may change due to variations of ambient temperature and humidity. The following useful data is provided to help the user with

correct selection.

Dimensions of MC nylon gears change with temperature. KHK MC nylon gears are cut in the ambient temperature of 20°to 30°C(68°~86°F).Some dimensional changes could be expected in summer and winter.We present the thermal deflection property of several plastics under load.

■Thermal deflection temperature under load of certain plastic

materials (ASTM-D648)

■Thermal Properties of Plastic Materials

■Water Absorption Properties

Dimensions of MC nylon gears change with moisture content. This may cause the sizes to vary from the time of purchase to the time of usage. The following table and the chart show the moisture content and its effect on the dimensions of MC901 nylon.

■Moisture Absorption Rate of MC901 (ASTM D-570, etc.)

MC nylon products are mainly used in food and chemical machinery. However, there are limitations depending on the environment. Generally, MC nylon is resistant against organic agents but weak against acids. We list the chemical resistance properties of MC nylon against various substances. Since the reaction may vary depending on the applications, it is important to test it before processing. The MC Nylon that is approved for food contact by the US FDA is MC907. Gears can be custom made from this material. ■Chemical Resistance Properties of MC Nylon(○ Hardly affected △Possible to use under certain conditions ×Not suitable for use)

Moisture Absorption Rate (24 hrs., in water at room temperature)

Water Saturation Value (room temperature in air)

0.5~1.0%

5.5~7.0%

2.5~3.5%

C-177

Unit MC

901,900NC

2

601ST

66Nylon

2.11

Polyacetal Teflon

2.16

10-5/℃ 9 6.510 15

9 10

Specific heat — cal/℃.g 0.4 0.4 0.25

Temperature of thermal deflection under certain load

(18.6kgf/cm2) D-648 ℃

160

200

Above200 66 110 56

(4.6kgf/cm2) D-648 ℃200

215

Above215 182 158 120

Continuous workingtemperature

— ℃ 120 150 120 95 260

D-621 % 0.65

℃220

223

220

223165

Moisture content (%)

Moisture Content vs. Dimensional Variation of MC901

Dim

ensi

onal

var

iatio

n (%

)

00

0.5

1.0

1.5

2.0

1 2 3 4 5 6 7

For plastic materials, it is difficult to determine the operating temperature below which there is no harmful effect from long term, continuous operation. In general, it is set by actual usage experience, though it is said to be 20℃ to 30℃ below the thermal deflection temperature.There is not much data on low temperature limits. Users should rely on their own experience taking the brittleness properties into consideration.

If you were to use NSU, PU or PS Plastic gears without lubricants, the meshing two nylon gears generates heat and they expand. We recommend metal gears for mating gears.

Characteristics of Plastic Gears

Spur Gears

Deflection rate under certain load (140kgf/cm2,50℃ )

Diluted hydrochloric acid

Concentrated hydrochloric acid

Diluted sulfuric acid

Concentrated sulfuric acid

Diluted nitric acid

Concentrated nitric acid

Diluted phosphoric acid

Sodium hydroxide(50%)

Ammonia water(10%)

Ammonia gas

Saline solution(10%)

Potassium chloride

Calcium chloride

Ammonium chloride

Sodium hypochlorite

Sodium sulfate

Sodium thiosulfate

Sodium bisulfate

Cupric sulfate

Potassium dichromate (5%)

Potassium permanganate

Sodium carbonate

Methyl acetate

Ethyl acetate

Sodium acetate

Aceton

Methyl acetate

Formaldehyde

Acetaldehyde

Ether family

Acetamide

Ethylenediamine

Acrylnitrile

Carbon tetrachloride

Ethylene chloride

Ethylene chlorohydrin

Trichlorethylene(Tri-clene)

Benzene

Toluene

Phenol

Aniline

Benzaldehyde

Benzonic acid

Chlorobenzene

Nitrobenzene

Salicylic acid

Diduthylphthalate

Synchrohexane

Synchrohexanol

Tetrahydrofuran

(Epsilon)-caprolactam

Petroleum ether

Gasoline

Diesel oil

Lubricant oil

Mineral oil

Castor oil

Linseed oil

Silicon oil

Edible fat

Tallow

Butter

Milk

Grape wine

Fruit juice

Carbonate drink

×

×

×

×

10-1

kcal/mhr.℃

~~

~ ~

~

Round bar-MC cast nylon with metal core

33

D

180

If you require other sized gears than those listed in our NSU or PU series, we can design and quote custom gears made from the following round bars. Since we stock them, we can deliver fast and reduce your cost.

■Dimensions of MC nylon round bars (Unit: mm)

Outside dia.

040

050

055

065

080

090

100

110

120

130

150

Metal core dia.

d

020

025

030

040

045

050

055

060

070

080

090

110

Total lengthMC thickness

10.0

12.5

12.5

12.5

17.5

20.0

22.5

25.0

25.0

25.0

30.0

35.0

Weight(kgf/pcs.)

00.4

00.7

00.9

01.4

01.9

02.3

02.8

03.4

04.4

05.5

07.0

10.4

L

105

105

105

105

105

105

105

105

105

105

105

105

200 120 40.0 12.5105

*Dimensions are based on technical date of NIPPON POLYPENCO LIMITED.

How is MC nylon fused to the metal core

This method is superior to other conventional methods such as bolting, shrink fitting and bonding.

1. Outline of the procedure

2. Advantage of MC nylon with metal core

The surface of the core material is rolled with a 2mm pitch diamond knurl. Then one or more grooves (1~2mm wide and 1mm deep) are cut as shown on the right.The metal surface is treated prior to casting nylon in a mold.

(1) Wide temperature range There are examples of wheel use in furnaces at 130 to 140°C(2) Good dimensional stability Since nylon is fused to the whole outer surface of the metal hub, dimensional change is very small even under temperature variations.(3) Metal-hub rim may be thin Even if there is not sufficient material to pass a bolt into the rim, the hub can

be fixed by means of a bonding method.(4) Good appearance Elimination of bolts and nuts provides a cleaner physical appearance .(5) Cost savings In general, it is more economical than attaching with bolts, especially in large

quantities.

2mm Pitchdiamond knur

MC901

SUS303 (MC9-SUSrod)S25C (MC9-SCrod)FC250 (MC9-FCrod)

KHKTechnicalInformation

Data related to the properties of MC nylon are extracted from the MC nylon technical data issued by NIPPON POLYPENCO LIMITED.

2mm Pitchdiamond knurl

■ Module 1

34

CAUTION: No secondary operation can be performed due to the carburizing process.NOTE 1: Although the dimensions of the keyway are made to the JIS(Js9) tolerance, there may be some deviations due to the effects of the heat treatment.

S1 Shape

MSGA(B) Ground Spur Gears 1Module

Spur

G

ears

MSGA.MSGB

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Web thickness Web O.D.

AH7 B C D E F G H IMSGA1-18

m1

18 S1 8 15 18 20 10 5 15 ― ―MSGA1-20MSGB1-20

20 S18

1017 20 22 10 5 15 ― ―

MSGA1-24MSGB1-24

24 S11012

20 24 26 10 5 15 ― ―

MSGA1-25MSGB1-25

25 S11012

20 25 27 10 5 15 ― ―

MSGA1-30MSGB1-30

30 S11012

25 30 32 10 5 15 ― ―

MSGA1-35MSGB1-35

35 S11015

25 35 37 10 5 15 ― ―

MSGA1-36MSGB1-36

36 S11215

25 36 38 10 5 15 ― ―

MSGA1-40MSGB1-40

40 S11215

30 40 42 10 5 15 ― ―

MSGA1-45MSGB1-45

45 S11215

30 45 47 10 5 15 ― ―

MSGA1-48MSGB1-48

48 S11215

30 48 50 10 5 15 ― ―

MSGA1-50MSGB1-50

50 S11215

35 50 52 10 5 15 ― ―

MSGA1-55MSGB1-55

55 S11520

40 55 57 10 10 20 ― ―

MSGA1-60MSGB1-60

60 S11520

40 60 62 10 10 20 ― ―

MSGA1-70MSGB1-70

70 S12025

45 70 72 10 10 20 ― ―

MSGA1-80MSGB1-80

80 S12025

45 80 82 10 10 20 ― ―

MSGA1-100MSGB1-100

100 S12025

45 100 102 10 10 20 ― ―

35

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details. NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Spur

G

ears

MSGA.MSGB

Ground Spur Gears

Keyway NOTE 1 Allowable torque(N・m) Allowable torque(kgf・m) Backlash

(mm) NOTE 3

Weight(kg)

Catalog No.Width × Depth Bending strength Surface durability Bending strength Surface durability

3 x 1.4 12.1 6.37 1.24 0.65 0.08~0.16 0.020 MSGA1-183 x 1.44 x 1.8

14.2 8.04 1.45 0.82 0.08~0.160.0270.023

MSGA1-20MSGB1-20

4 x 1.84 x 1.8

18.5 12.0 1.88 1.22 0.08~0.160.0380.034

MSGA1-24MSGB1-24

4 x 1.84 x 1.8

19.6 13.1 2.00 1.33 0.08~0.160.0410.037

MSGA1-25MSGB1-25

4 x 1.84 x 1.8

25.1 19.0 2.56 1.94 0.08~0.160.0650.061

MSGA1-30MSGB1-30

4 x 1.85 x 2.3

30.7 26.2 3.13 2.67 0.08~0.160.0850.073

MSGA1-35MSGB1-35

4 x 1.85 x 2.3

31.9 27.8 3.25 2.84 0.08~0.160.0850.077

MSGA1-36MSGB1-36

4 x 1.85 x 2.3

36.5 34.6 3.72 3.53 0.08~0.160.110.10

MSGA1-40MSGB1-40

4 x 1.85 x 2.3

42.3 44.3 4.31 4.51 0.08~0.160.140.13

MSGA1-45MSGB1-45

4 x 1.85 x 2.3

45.8 50.6 4.67 5.16 0.08~0.160.160.15

MSGA1-48MSGB1-48

4 x 1.85 x 2.3

48.1 55.1 4.91 5.62 0.08~0.160.180.17

MSGA1-50MSGB1-50

5 x 2.36 x 2.8

54.0 67.3 5.51 6.86 0.10~0.180.260.23

MSGA1-55MSGB1-55

5 x 2.36 x 2.8

59.9 80.6 6.11 8.22 0.10~0.180.290.27

MSGA1-60MSGB1-60

6 x 2.88 x 3.3

71.9 111 7.33 11.4 0.10~0.180.370.35

MSGA1-70MSGB1-70

6 x 2.88 x 3.3

83.9 147 8.55 15.0 0.10~0.180.470.44

MSGA1-80MSGB1-80

6 x 2.88 x 3.3

103 224 10.5 22.8 0.10~0.180.690.66

MSGA1-100MSGB1-100

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

SCM415

Overall carburizing

Tooth hardness

Surface treatment

Tooht surface finish

Secondary Operations

55~60HRC

-

Ground

Bore

JIS N5 grade (JIS B1702-1: 1998) OLD JIS 1 grade (JIS B1702: 1976)

Datum reference surface for gear grinding

Not possible (We can supply different configuration as custom made gears)

36

■ Module 1.5

CAUTION: No secondary operation can be performed due to the carburizing process.NOTE 1: Although the dimensions of the keyway are made to the JIS (Js9) tolerance, there may be some deviations due to the effects of the heat treatment.

S1 Shape

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Web thickness Web O.D.

AH7 B C D E F G H IMSGA1.5-15

m1.5

15 S1 10 18 22.5 22.5 15 10 25 ― ―MSGA1.5-18MSGB1.5-18

18 S11012

22 27 30 15 10 25 ― ―

MSGA1.5-20MSGB1.5-20

20 S11215

25 30 33 15 10 25 ― ―

MSGA1.5-24MSGB1.5-24

24 S11215

28 36 39 15 10 25 ― ―

MSGA1.5-25MSGB1.5-25

25 S11416

30 37.5 40.5 15 10 25 ― ―

MSGA1.5-30MSGB1.5-30

30 S11518

30 45 48 15 10 25 ― ―

MSGA1.5-35MSGB1.5-35

35 S11518

32 52.5 55.5 15 10 25 ― ―

MSGA1.5-36MSGB1.5-36

36 S11518

32 54 57 15 10 25 ― ―

MSGA1.5-40MSGB1.5-40

40 S11620

35 60 63 15 10 25 ― ―

MSGA1.5-45MSGB1.5-45

45 S11620

40 67.5 70.5 15 10 25 ― ―

MSGA1.5-48MSGB1.5-48

48 S11620

40 72 75 15 10 25 ― ―

MSGA1.5-50MSGB1.5-50

50 S11822

40 75 78 15 10 25 ― ―

MSGA1.5-55MSGB1.5-55

55 S12025

45 82.5 85.5 15 10 25 ― ―

MSGA1.5-60MSGB1.5-60

60 S12025

45 90 93 15 10 25 ― ―

MSGA1.5-70MSGB1.5-70

70 S12025

45 105 108 15 10 25 ― ―

MSGA1.5-80MSGB1.5-80

80 S12025

45 120 123 15 10 25 ― ―

MSGA1.5-100MSGB1.5-100

100 S12530

50 150 153 15 10 25 ― ―

MSGA(B) Ground Spur Gears 1.5Module

Spur

G

ears

MSGA.MSGB

37

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions.Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Keyway NOTE 1 Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash

(mm)NOTE 3

Weight(kg)

Catalog No.Width × Depth Bending strength Surface durability Bending strength Surface durability

4 x 1.8 30.8 14.8 3.15 1.51 0.08~0.16 0.050 MSGA1.5-154 x 1.84 x 1.8

41.0 22.1 4.18 2.26 0.08~0.160.0800.074

MSGA1.5-18MSGB1.5-18

4 x 1.85 x 2.3

48.0 27.9 4.89 2.84 0.08~0.160.0980.085

MSGA1.5-20MSGB1.5-20

4 x 1.85 x 2.3

62.4 41.5 6.36 4.24 0.08~0.160.140.13

MSGA1.5-24MSGB1.5-24

5 x 2.35 x 2.3

66.0 45.4 6.73 4.63 0.08~0.160.150.14

MSGA1.5-25MSGB1.5-25

5 x 2.36 x 2.8

84.7 66.4 8.63 6.77 0.08~0.160.210.19

MSGA1.5-30MSGB1.5-30

5 x 2.36 x 2.8

104 91.5 10.6 9.34 0.10~0.180.280.26

MSGA1.5-35MSGB1.5-35

5 x 2.36 x 2.8

108 97.1 11.0 9.90 0.10~0.180.300.28

MSGA1.5-36MSGB1.5-36

5 x 2.36 x 2.8

123 121 12.6 12.3 0.10~0.180.370.34

MSGA1.5-40MSGB1.5-40

5 x 2.36 x 2.8

143 155 14.5 15.8 0.10~0.180.480.46

MSGA1.5-45MSGB1.5-45

5 x 2.36 x 2.8

155 177 15.8 18.1 0.10~0.180.540.51

MSGA1.5-48MSGB1.5-48

6 x 2.86 x 2.8

162 193 16.6 19.7 0.10~0.180.570.54

MSGA1.5-50MSGB1.5-50

6 x 2.88 x 3.3

182 236 18.6 24.0 0.10~0.180.690.65

MSGA1.5-55MSGB1.5-55

6 x 2.88 x 3.3

202 283 20.6 28.8 0.10~0.180.810.77

MSGA1.5-60MSGB1.5-60

6 x 2.88 x 3.3

231 372 23.6 38.0 0.12~0.201.081.04

MSGA1.5-70MSGB1.5-70

6 x 2.88 x 3.3

270 494 27.5 50.3 0.12~0.201.391.36

MSGA1.5-80MSGB1.5-80

8 x 3.38 x 3.3

347 787 35.4 80.2 0.12~0.202.132.09

MSGA1.5-100MSGB1.5-100

Spur

G

ears

MSGA.MSGB

Ground Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

SCM415

Overall carburizing

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

55~60HRC

-

Ground

Bore

JIS N5 grade (JIS B1702-1: 1998) OLD JIS 1 grade (JIS B1702: 1976)

Datum reference surface for gear grinding

Not possible (We can supply different configuration as custom made gears)

S1 Shape

■ Module 2

38

CAUTION: No secondary operation can be performed due to the carburizing process.NOTE 1: Although the dimensions of the keyway are made to the JIS (Js9) tolerance, there may be some deviations due to the effects of the heat treatment.

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Web thickness Web O.D.

AH7 B C D E F G H IMSGA2-15MSGB2-15

m2

15 S11215

24 30 34 20 10 30 ― ―

MSGA2-18MSGB2-18

18 S11215

30 36 40 20 10 30 ― ―

MSGA2-20MSGB2-20

20 S11518

32 40 44 20 10 30 ― ―

MSGA2-24MSGB2-24

24 S11518

35 48 52 20 10 30 ― ―

MSGA2-25MSGB2-25

25 S11620

35 50 54 20 10 30 ― ―

MSGA2-30MSGB2-30

30 S11822

40 60 64 20 10 30 ― ―

MSGA2-35MSGB2-35

35 S11822

40 70 74 20 10 30 ― ―

MSGA2-36MSGB2-36

36 S11822

40 72 76 20 10 30 ― ―

MSGA2-40MSGB2-40

40 S12025

45 80 84 20 10 30 ― ―

MSGA2-45MSGB2-45

45 S12025

45 90 94 20 10 30 ― ―

MSGA2-48MSGB2-48

48 S12228

50 96 100 20 10 30 ― ―

MSGA2-50MSGB2-50

50 S12228

50 100 104 20 10 30 ― ―

MSGA2-55MSGB2-55

55 S12530

55 110 114 20 10 30 ― ―

MSGA2-60MSGB2-60

60 S12530

55 120 124 20 10 30 ― ―

MSGA2-70MSGB2-70

70 S12530

55 140 144 20 10 30 ― ―

MSGA2-80MSGB2-80

80 S23035

60 160 164 20 10 30 ― ―

MSGA2-100MSGB2-100

100 S23540

80 200 204 20 10 30 ― ―

MSGA(B) Ground Spur Gears 2Module

Spur

G

ears

MSGA.MSGB

39

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

S4 Shape

Keyway NOTE 1 Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash

(mm)NOTE 3

Weight(kg)

Catalog No.Width × Depth Bending strength Surface durability Bending strength Surface durability

4 x 1.85 x 2.3

73.1 35.7 7.46 3.64 0.10~0.200.120.10

MSGA2-15MSGB2-15

4 x 1.85 x 2.3

97.2 53.5 9.91 5.46 0.10~0.200.190.17

MSGA2-18MSGB2-18

5 x 2.36 x 2.8

114 67.6 11.6 6.89 0.10~0.200.220.20

MSGA2-20MSGB2-20

5 x 2.36 x 2.8

148 101 15.1 10.3 0.10~0.200.320.30

MSGA2-24MSGB2-24

5 x 2.36 x 2.8

157 110 16.0 11.2 0.10~0.200.330.31

MSGA2-25MSGB2-25

6 x 2.86 x 2.8

201 161 20.5 16.5 0.12~0.220.480.45

MSGA2-30MSGB2-30

6 x 2.86 x 2.8

246 223 25.1 22.7 0.12~0.220.640.61

MSGA2-35MSGB2-35

6 x 2.86 x 2.8

255 236 26.0 24.1 0.12~0.220.670.64

MSGA2-36MSGB2-36

6 x 2.88 x 3.3

292 294 29.7 30.0 0.12~0.220.840.79

MSGA2-40MSGB2-40

6 x 2.88 x 3.3

338 377 34.5 38.4 0.12~0.221.051.00

MSGA2-45MSGB2-45

6 x 2.88 x 3.3

349 411 35.6 41.9 0.12~0.221.201.14

MSGA2-48MSGB2-48

6 x 2.88 x 3.3

367 448 37.4 45.7 0.12~0.221.291.24

MSGA2-50MSGB2-50

8 x 3.38 x 3.3

412 548 42.0 55.8 0.14~0.241.561.51

MSGA2-55MSGB2-55

8 x 3.38 x 3.3

457 658 46.6 67.1 0.14~0.241.841.79

MSGA2-60MSGB2-60

8 x 3.38 x 3.3

547 909 55.8 92.7 0.14~0.242.482.43

MSGA2-70MSGB2-70

8 x 3.310 x 3.3

610 1150 62.2 117 0.14~0.242.552.49

MSGA2-80MSGB2-80

10 x 3.312 x 3.3

785 1820 80.1 186 0.14~0.244.164.09

MSGA2-100MSGB2-100

Spur

G

ears

MSGA.MSGB

Ground Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

SCM415

Overall carburizing

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

55~60HRC

-

Ground

Bore

JIS N5 grade (JIS B1702-1: 1998) OLD JIS 1 grade (JIS B1702: 1976)

Datum reference surface for gear grinding

Not possible (We can supply different configuration as custom made gears)

■ Module 2.5

40

CAUTION: No secondary operation can be performed due to the carburizing process.NOTE 1: Although the dimensions of the keyway are made to the JIS (Js9) tolerance, there may be some deviations due to the effects of the heat treatment.

S1 Shape

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Web thickness Web O.D.

AH7 B C D E F G H IMSGA2.5-15MSGB2.5-15**

m2.5

15 S11518

30 37.5 42.5 25 12 37 ― ―

MSGA2.5-18MSGB2.5-18

18 S11820

38 45 50 25 12 37 ― ―

MSGA2.5-20MSGB2.5-20

20 S11822

40 50 55 25 12 37 ― ―

MSGA2.5-24MSGB2.5-24

24 S11822

40 60 65 25 12 37 ― ―

MSGA2.5-25MSGB2.5-25

25 S12025

45 62.5 67.5 25 12 37 ― ―

MSGA2.5-30MSGB2.5-30

30 S12228

50 75 80 25 12 37 ― ―

MSGA2.5-35MSGB2.5-35

35 S12530

55 87.5 92.5 25 12 37 ― ―

MSGA2.5-36MSGB2.5-36

36 S12530

55 90 95 25 12 37 ― ―

MSGA2.5-40MSGB2.5-40

40 S12532

55 100 105 25 12 37 ― ―

MSGA2.5-45MSGB2.5-45

45 S13035

60 112.5 117.5 25 12 37 ― ―

MSGA2.5-48MSGB2.5-48

48 S13035

60 120 125 25 12 37 ― ―

MSGA2.5-50MSGB2.5-50

50 S13035

60 125 130 25 12 37 ― ―

MSGA2.5-55MSGB2.5-55

55 S13040

70 137.5 142.5 25 12 37 ― ―

MSGA2.5-60MSGB2.5-60

60 S13040

70 150 155 25 12 37 ― ―

MSGA2.5-70MSGB2.5-70

70 S24050

85 175 180 25 12 37 17 150

MSGA (B) Ground Spur Gears 2.5Module

Spur

G

ears

MSGA.MSGB

41

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

S4 Shape

Keyway NOTE 1 Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash

(mm)NOTE 3

Weight(kg)

Catalog No.Width × Depth Bending strength Surface durability Bending strength Surface durability

5 x 2.36 x 2.8

143 71.0 14.6 7.24 0.10~0.200.230.20

MSGA2.5-15MSGB2.5-15**

6 x 2.86 x 2.8

190 107 19.4 10.9 0.10~0.200.340.32

MSGA2.5-18MSGB2.5-18

6 x 2.86 x 2.8

222 134 22.7 13.7 0.10~0.200.420.39

MSGA2.5-20MSGB2.5-20

6 x 2.86 x 2.8

289 201 29.4 20.5 0.12~0.220.590.56

MSGA2.5-24MSGB2.5-24

6 x 2.88 x 3.3

306 220 31.2 22.4 0.12~0.220.660.60

MSGA2.5-25MSGB2.5-25

6 x 2.88 x 3.3

392 322 40.0 32.8 0.12~0.220.940.87

MSGA2.5-30MSGB2.5-30

8 x 3.38 x 3.3

480 444 49.0 45.3 0.12~0.221.251.19

MSGA2.5-35MSGB2.5-35

8 x 3.38 x 3.3

498 471 50.8 48.0 0.12~0.221.321.26

MSGA2.5-36MSGB2.5-36

8 x 3.310 x 3.3

543 560 55.3 57.1 0.12~0.221.611.52

MSGA2.5-40MSGB2.5-40

8 x 3.310 x 3.3

629 718 64.1 73.2 0.14~0.242.001.93

MSGA2.5-45MSGB2.5-45

8 x 3.310 x 3.3

681 823 69.5 83.9 0.14~0.242.272.20

MSGA2.5-48MSGB2.5-48

8 x 3.310 x 3.3

716 897 73.0 91.5 0.14~0.242.462.39

MSGA2.5-50MSGB2.5-50

8 x 3.312 x 3.3

804 1090 82.0 112 0.14~0.243.062.90

MSGA2.5-55MSGB2.5-55

8 x 3.312 x 3.3

892 1310 90.9 134 0.14~0.243.623.45

MSGA2.5-60MSGB2.5-60

12 x 3.314 x 3.8

1020 1730 104 176 0.14~0.244.244.03

MSGA2.5-70MSGB2.5-70

Spur

G

ears

MSGA.MSGB

Ground Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

SCM415

Overall carburizing

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

55~60HRC

-

Ground

Bore

JIS N5 grade (JIS B1702-1: 1998) OLD JIS 1 grade (JIS B1702: 1976)

Datum reference surface for gear grinding

Not possible (We can supply different configuration as custom made gears)

■ Module 3

42

CAUTION: No secondary operation can be performed due to the carburizing process.NOTE 1: Although the dimensions of the keyway are made to the JIS (Js9) tolerance, there may be some deviations due to the effects of the heat treatment.

S1 Shape

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Web thickness Web O.D.

AH7 B C D E F G H IMSGA3-15MSGB3-15

m3

15 S11822

36 45 51 30 15 45 ― ―

MSGA3-18MSGB3-18

18 S12025

45 54 60 30 15 45 ― ―

MSGA3-20MSGB3-20

20 S12025

45 60 66 30 15 45 ― ―

MSGA3-24MSGB3-24

24 S12025

45 72 78 30 15 45 ― ―

MSGA3-25MSGB3-25

25 S12530

55 75 81 30 15 45 ― ―

MSGA3-30MSGB3-30

30 S12835

60 90 96 30 15 45 ― ―

MSGA3-35MSGB3-35

35 S13035

60 105 111 30 15 45 ― ―

MSGA3-36MSGB3-36

36 S13035

60 108 114 30 15 45 ― ―

MSGA3-40MSGB3-40

40 S13040

70 120 126 30 15 45 ― ―

MSGA3-45MSGB3-45

45 S13040

70 135 141 30 15 45 ― ―

MSGA3-48MSGB3-48

48 S13540

70 144 150 30 15 45 ― ―

MSGA3-50MSGB3-50

50 S23240

70 150 156 30 15 45 20 126

MSGA3-55MSGB3-55

55 S23540

70 165 171 30 15 45 20 140

MSGA3-60MSGB3-60

60 S23545

80 180 186 30 15 45 20 156

MSGA(B) Ground Spur Gears 3Module

Spur

G

ears

MSGA.MSGB

43

An example of KHK’s inspection report on tooth profile and lead errors.

The precision of a spur gear (JIS B 1702-1) is determined by factors such as single pitch error, pitch variation error, accumulated pitch error, tooth profile error, run out error, lead error etc.

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

S4 Shape

Keyway NOTE 1 Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash

(mm)NOTE 3

Weight(kg)

Catalog No.Width × Depth Bending strength Surface durability Bending strength Surface durability

6 x 2.86 x 2.8

247 124 25.2 12.7 0.10~0.200.400.35

MSGA3-15MSGB3-15

6 x 2.88 x 3.3

328 187 33.4 19.1 0.12~0.220.610.54

MSGA3-18MSGB3-18

6 x 2.88 x 3.3

384 236 39.1 24.1 0.12~0.220.740.67

MSGA3-20MSGB3-20

6 x 2.88 x 3.3

499 353 50.9 36.0 0.12~0.221.030.96

MSGA3-24MSGB3-24

8 x 3.310 x 3.3

528 386 53.9 39.3 0.12~0.221.141.06

MSGA3-25MSGB3-25

8 x 3.310 x 3.3

677 565 69.1 57.7 0.12~0.221.601.48

MSGA3-30MSGB3-30

8 x 3.310 x 3.3

790 745 80.6 75.9 0.14~0.242.112.02

MSGA3-35MSGB3-35

8 x 3.310 x 3.3

820 790 83.6 80.6 0.14~0.242.232.14

MSGA3-36MSGB3-36

8 x 3.312 x 3.3

938 988 95.6 101 0.14~0.242.862.66

MSGA3-40MSGB3-40

8 x 3.312 x 3.3

1090 1260 111 129 0.14~0.243.573.37

MSGA3-45MSGB3-45

10 x 3.312 x 3.3

1180 1450 120 147 0.14~0.243.943.83

MSGA3-48MSGB3-48

10 x 3.312 x 3.3

1240 1570 126 161 0.14~0.243.793.62

MSGA3-50MSGB3-50

10 x 3.312 x 3.3

1330 1830 135 187 0.14~0.244.394.29

MSGA3-55MSGB3-55

10 x 3.314 x 3.8

1470 2200 150 224 0.14~0.245.315.08

MSGA3-60MSGB3-60

Spur

G

ears

MSGA.MSGB

Ground Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

SCM415

Overall carburizing

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

55~60HRC

-

Ground

Bore

JIS N5 grade (JIS B1702-1: 1998) OLD JIS 1 grade (JIS B1702: 1976)

Datum reference surface for gear grinding

Not possible (We can supply different configuration as custom made gears)

■ Module 4

44

CAUTION: No secondary operation can be performed due to the carburizing process.NOTE 1: Although the dimensions of the keyway are made to the JIS (Js9) tolerance, there may be some deviations due to the effects of the heat treatment.

S1 Shape

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Web thickness Web O.D.

AH7 B C D E F G H IMSGA4-15MSGB4-15

m4

15 S12530

48 60 68 40 20 60 ― ―

MSGA4-18MSGB4-18

18 S12530

50 72 80 40 20 60 ― ―

MSGA4-20MSGB4-20

20 S12832

60 80 88 40 20 60 ― ―

MSGA4-24MSGB4-24

24 S12832

60 96 104 40 20 60 ― ―

MSGA4-25MSGB4-25

25 S13035

60 100 108 40 20 60 ― ―

MSGA4-30MSGB4-30

30 S13540

70 120 128 40 20 60 ― ―

MSGA4-35MSGB4-35

35 S13540

70 140 148 40 20 60 ― ―

MSGA4-36MSGB4-36

36 S13540

70 144 152 40 20 60 ― ―

MSGA4-40MSGB4-40

40 S14045

80 160 168 40 20 60 ― ―

MSGA4-45MSGB4-45

45 S14045

80 180 188 40 20 60 ― ―

MSGA4-48MSGB4-48

48 S24045

80 192 200 40 20 60 26 160

MSGA4-50MSGB4-50

50 S24050

85 200 208 40 20 60 26 168

MSGA(B) Ground Spur Gears 4Module

Spur

G

ears

MSGA.MSGB

45

An example of KHK’s inspection report on various pitch errors.

The precision of spur gear (JIS B 1702-1) is determined by factors such as single pitch error, pitch variation error, accumulated pitch error, tooth profile error, run out error, lead error etc.

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

S4 Shape

Keyway NOTE 1 Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash

(mm)NOTE 3

Weight(kg)

Catalog No.Width × Depth Bending strength Surface durability Bending strength Surface durability

8 x 3.38 x 3.3

585 302 59.7 30.8 0.14~0.240.930.83

MSGA4-15MSGB4-15

8 x 3.38 x 3.3

777 455 79.3 46.4 0.14~0.241.341.24

MSGA4-18MSGB4-18

8 x 3.310 x 3.3

910 574 92.8 58.6 0.14~0.241.721.63

MSGA4-20MSGB4-20

8 x 3.310 x 3.3

1130 819 115 83.5 0.14~0.242.412.32

MSGA4-24MSGB4-24

8 x 3.310 x 3.3

1190 896 122 91.4 0.14~0.242.562.44

MSGA4-25MSGB4-25

10 x 3.312 x 3.3

1530 1320 156 134 0.16~0.263.693.54

MSGA4-30MSGB4-30

10 x 3.312 x 3.3

1870 1820 191 185 0.16~0.264.974.83

MSGA4-35MSGB4-35

10 x 3.312 x 3.3

1940 1930 198 197 0.16~0.265.255.11

MSGA4-36MSGB4-36

12 x 3.314 x 3.8

2120 2290 216 234 0.16~0.266.496.33

MSGA4-40MSGB4-40

12 x 3.314 x 3.8

2460 2930 251 299 0.16~0.268.178.01

MSGA4-45MSGB4-45

12 x 3.314 x 3.8

2660 3350 272 342 0.16~0.267.977.81

MSGA4-48MSGB4-48

12 x 3.314 x 3.8

2800 3650 285 372 0.16~0.268.718.37

MSGA4-50MSGB4-50

Spur

G

ears

MSGA.MSGB

Ground Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

SCM415

Overall carburizing

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

55~60HRC

-

Ground

Bore

JIS N5 grade (JIS B1702-1: 1998) OLD JIS 1 grade (JIS B1702: 1976)

Datum reference surface for gear grinding

Not possible (We can supply different configuration as custom made gears)

■ Module 1

46

NOTE 1: Secondary operations may be performed on these gears except for modification of the gear face width.

S1 Shape

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width NOTE 1 Hub width Total length Keyway

AH7 B C D E F G Width × Depth

SSG1-15SSG1-16SSG1-17SSG1-18SSG1-19

m1.

15 16 17 18 19

S1S1S1S1S1

66666

1213141516

1516171819

1718192021

8 10 18 ―

SSG1-20SSG1-21SSG1-22SSG1-23SSG1-24

2021222324

S1S1S1S1S1

68888

1718182020

2021222324

2223242526

8 10 18 ―

SSG1-25SSG1-26SSG1-27SSG1-28SSG1-29

25 26 2728 29

S1S1S1S1S1

88888

2020202025

2526272829

2728293031

8 10 18 ―

SSG1-30SSG1-32SSG1-34SSG1-35SSG1-36

3032 34 3536

S1S1S1S1S1

1010101010

2525252525

3032343536

3234363738

8 10 18 ―

SSG1-38SSG1-40SSG1-42SSG1-44SSG1-45

38 40 4244 45

S1S1S1S1S1

1010101010

3030303030

3840424445

4042444647

5 10 18 ―

SSG1-48SSG1-50SSG1-55SSG1-56SSG1-60

485055 5660

S1S1S1S1S1

1012121212

3035353540

4850555660

5052575862

8 10 18 ―

SSG1-64SSG1-70SSG1-75SSG1-80SSG1-90

64 70 75 80 90

S1S1S1S1S1

1212121515

4040405050

6470758090

6672778292

8 10 18 ―

SSG1-100SSG1-120

100120

S1S1

1515

5050

100120

102122

8 10 18 ―

SSG Ground Spur Gears 1Module

Spur

G

ears

SSG

47

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Threaded hole Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash

(mm)NOTE 3

Weight(kg) Catalog No.

Thread size J Bending strength Surface durability Bending strength Surface durability

―――――

―――――

2.96 3.28 3.60 3.93 4.26

1.03 1.19 1.36 1.54 1.73

0.30 0.33 0.37 0.40 0.43

0.11 0.12 0.14 0.16 0.18

0.08~0.160.08~0.160.08~0.160.08~0.160.08~0.16

0.016 0.019 0.022 0.026 0.030

SSG1-15SSG1-16SSG1-17SSG1-18SSG1-19

―――――

―――――

4.60 4.94 5.28 5.63 5.98

1.94 2.14 2.36 2.59 2.83

0.47 0.50 0.54 0.57 0.61

0.20 0.22 0.24 0.26 0.29

0.08~0.160.08~0.160.08~0.160.08~0.160.08~0.16

0.034 0.035 0.037 0.044 0.046

SSG1-20SSG1-21SSG1-22SSG1-23SSG1-24

―――――

―――――

6.33 6.68 7.04 7.39 7.75

3.07 3.33 3.60 3.89 4.18

0.65 0.68 0.72 0.75 0.79

0.31 0.34 0.37 0.40 0.43

0.08~0.160.08~0.160.08~0.160.08~0.160.08~0.16

0.048 0.051 0.054 0.056 0.073

SSG1-25SSG1-26SSG1-27SSG1-28SSG1-29

―――――

―――――

8.11 7.37 7.98 8.28 8.59

4.48 4.27 4.84 5.14 5.45

0.83 0.75 0.81 0.84 0.88

0.46 0.43 0.49 0.52 0.56

0.08~0.160.08~0.160.08~0.160.08~0.160.08~0.16

0.072 0.078 0.084 0.088 0.091

SSG1-30SSG1-32SSG1-34SSG1-35SSG1-36

―――――

―――――

9.21 9.83

10.5 11.1 11.4

6.10 6.79 7.51 8.288.67

0.94 1.00 1.07 1.131.16

0.62 0.69 0.77 0.840.88

0.08~0.160.08~0.160.08~0.160.08~0.160.08~0.16

0.12 0.12 0.13 0.140.14

SSG1-38SSG1-40SSG1-42SSG1-44SSG1-45

―――――

―――――

12.3 13.0 14.6 14.9 16.2

9.92 10.8 13.2 13.7 15.8

1.26 1.32 1.48 1.52 1.65

1.01 1.10 1.34 1.40 1.61

0.08~0.160.08~0.160.10~0.180.10~0.180.10~0.18

0.16 0.18 0.21 0.21 0.26

SSG1-48SSG1-50SSG1-55SSG1-56SSG1-60

―――――

―――――

17.4 19.4 21.0 22.6 25.8

18.1 21.8 25.2 28.8 36.9

1.78 1.97 2.14 2.30 2.64

1.84 2.22 2.57 2.94 3.77

0.10~0.180.10~0.180.10~0.180.10~0.180.10~0.18

0.28 0.32 0.36 0.44 0.53

SSG1-64SSG1-70SSG1-75SSG1-80SSG1-90

――

――

26.9 32.9

42.5 62.5

2.74 3.36

4.34 6.37

0.10~0.180.12~0.20

0.62 0.84

SSG1-100SSG1-120

Spur

G

ears

SSG

Ground Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

Tooth surface Induction hardened

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

48~53HRC

Black oxide except ground surfaces

Ground

Bore

JIS N7 grade (JIS B1702-1: 1998) OLD JIS 3 grade (JIS B1702: 1976)

Datum reference surface for gear grinding

Possible except tooth area

■ Module 1.5

48

NOTE 1: Secondary operations may be performed on these gears except for modification of the gear face width.

S1 Shape

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width NOTE 1 Hub width Total length Keyway

AH7 B C D E F G Width × Depth

SSG1.5-14 SSG1.5-15 SSG1.5-16 SSG1.5-17 SSG1.5-18

m1.5

1415161718

S1S1S1S1S1

1010101010

1718202122

2122.52425.527

2425.52728.530

15 14 29 ―

SSG1.5-19 SSG1.5-20 SSG1.5-21 SSG1.5-22 SSG1.5-23

1920212223

S1S1S1S1S1

1010101212

2324252627

28.53031.53334.5

31.53334.53637.5

15 14 29 ―

SSG1.5-24 SSG1.5-25 SSG1.5-26 SSG1.5-27 SSG1.5-28

2425 26 2728

S1S1S1S1S1

1212121515

2830323436

3637.53940.542

3940.54243.545

15 14 29 ―

SSG1.5-29 SSG1.5-30 SSG1.5-32 SSG1.5-34 SSG1.5-35

3032 34 3536

S1S1S1S1S1

1515151515

3738404242

43.545485152.5

46.548515455.5

15 14 29 ―

SSG1.5-36 SSG1.5-38 SSG1.5-40 SSG1.5-42 SSG1.5-44

3638404244

S1S1S1S1S1

1515151515

4545505050

5457606366

5760636669

15 14 29 ―

SSG1.5-45 SSG1.5-48 SSG1.5-50 SSG1.5-55 SSG1.5-56

45485055 56

S1S1S1S1S1

1818181818

5050606060

67.5727582.584

70.5757885.587

15 14 29 ―

SSG1.5-60 SSG1.5-64 SSG1.5-70 SSG1.5-75 SSG1.5-80

6064 70 75 80

S1S1S1S1S1

2020202020

6060606070

9096

105112.5120

9399

108115.5123

15 14 29 ―

SSG1.5-90 SSG1.5-100

100120

S1S1

2020

7070

135150

138153

15 14 29 ―

SSG Ground Spur Gears 1.5Module

Spur

G

ears

SSG

49

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Threaded hole Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash

(mm)NOTE 3

Weight(kg) Catalog No.

Thread size J Bending strength Surface durability Bending strength Surface durability

―――――

―――――

11.1 12.5 13.8 15.2 16.6

3.73 4.35 5.02 5.74 6.51

1.14 1.27 1.41 1.55 1.69

0.38 0.44 0.51 0.58 0.66

0.08~0.160.08~0.160.08~0.160.08~0.160.08~0.16

0.048 0.057 0.070 0.080 0.091

SSG1.5-14 SSG1.5-15 SSG1.5-16 SSG1.5-17 SSG1.5-18

―――――

―――――

18.0 19.4 20.8 18.6 19.8

7.33 8.20 9.12 8.41 9.27

1.83 1.98 2.12 1.89 2.02

0.75 0.84 0.93 0.86 0.95

0.08~0.160.08~0.160.08~0.160.08~0.160.08~0.16

0.10 0.12 0.13 0.13 0.15

SSG1.5-19 SSG1.5-20 SSG1.5-21 SSG1.5-22 SSG1.5-23

―――――

―――――

21.0 22.2 23.5 24.7 26.0

10.2 11.1 12.1 13.1 14.1

2.14 2.27 2.39 2.52 2.65

1.04 1.13 1.231.33 1.44

0.08~0.160.08~0.160.08~0.160.08~0.160.08~0.16

0.16 0.18 0.200.21 0.23

SSG1.5-24 SSG1.5-25 SSG1.5-26 SSG1.5-27 SSG1.5-28

―――――

―――――

27.3 28.5 31.1 33.6 34.9

15.2 16.3 18.6 21.1 22.4

2.78 2.91 3.17 3.43 3.56

1.55 1.66 1.90 2.15 2.29

0.08~0.160.08~0.160.08~0.160.10~0.180.10~0.18

0.25 0.27 0.31 0.35 0.37

SSG1.5-29 SSG1.5-30 SSG1.5-32 SSG1.5-34 SSG1.5-35

―――――

―――――

36.2 38.8 41.5 44.1 46.7

23.8 26.6 29.6 32.8 36.2

3.70 3.96 4.23 4.50 4.77

2.43 2.71 3.02 3.35 3.69

0.10~0.180.10~0.180.10~0.180.10~0.180.10~0.18

0.40 0.44 0.51 0.54 0.58

SSG1.5-36 SSG1.5-38 SSG1.5-40 SSG1.5-42 SSG1.5-44

―――――

―――――

48.1 52.0 54.7 61.4 62.8

37.9 43.4 47.2 57.7 59.9

4.90 5.31 5.58 6.26 6.40

3.86 4.42 4.82 5.88 6.11

0.10~0.180.10~0.180.10~0.180.10~0.180.10~0.18

0.58 0.64 0.77 0.88 0.91

SSG1.5-45 SSG1.5-48 SSG1.5-50 SSG1.5-55 SSG1.5-56

―――――

―――――

68.1 67.9 75.4 81.7 88.0

69.2 73.2 88.4

102 117

6.95 6.92 7.69 8.33 8.97

7.06 7.46 9.01

10.4 12.0

0.10~0.180.10~0.180.12~0.200.12~0.200.12~0.20

0.99 1.09 1.26 1.41 1.68

SSG1.5-60 SSG1.5-64 SSG1.5-70 SSG1.5-75 SSG1.5-80

――

――

101 113

150 187

10.3 11.6

15.3 19.1

0.12~0.200.12~0.20

2.04 2.43

SSG1.5-90 SSG1.5-100

Spur

G

ears

SSG

Ground Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

Tooth surface Induction hardened

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

48~53HRC

Black oxide except ground surfaces

Ground

Bore

JIS N7 grade (JIS B1702-1: 1998) OLD JIS 3 grade (JIS B1702: 1976)

Datum reference surface for gear grinding

Possible except tooth area

■ Module 2

50

NOTE 1: Secondary operations may be performed on these gears except for modification of the gear face width.

S1 Shape

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width NOTE 1 Hub width Total length Keyway

AH7 B C D E F G Width × Depth

SSG2-14 SSG2-15 SSG2-16 SSG2-17 SSG2-18

m2

1415161718

S1S1S1S1S1

1212121212

2224262830

2830323436

3234363840

20 16 36 ―

SSG2-19 SSG2-20 SSG2-21 SSG2-22 SSG2-23

1920212223

S1S1S1S1S1

1215151515

3132343637

3840424446

4244464850

20 16 36 ―

SSG2-24 SSG2-25 SSG2-26 SSG2-27 SSG2-28

2425 26 2728

S1S1S1S1S1

1515151515

3840424445

4850525456

5254565860

20 16 36 ―

SSG2-29 SSG2-30 SSG2-32 SSG2-34 SSG2-35

3032 34 3536

S1S1S1S1S1

1518181818

4850505050

5860646870

6264687274

20 16 36 ―

SSG2-36 SSG2-38 SSG2-40 SSG2-42 SSG2-44

3638404244

S1S1S1S1S1

1818202020

5050606060

7276808488

7680848892

20 16 36 ―

SSG2-45 SSG2-48 SSG2-50 SSG2-55 SSG2-56

45485055 56

S1S1S1S1S1

2020252525

6060606060

9096

100110112

94100104114116

20 16 36 ―

SSG2-60 SSG2-64 SSG2-70 SSG2-75 SSG2-80

6064 70 75 80

S1S1S1S1S1

2525252525

6565707080

120128140150160

124132144154164

20 16 36 ―

SSG2-90 SSG2-100

100120

S1S1

2525

8080

180200

184204

20 16 36 ―

SSG Ground Spur Gears 2Module

Spur

G

ears

SSG

51

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Threaded hole Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash

(mm)NOTE 3

Weight(kg) Catalog No.

Thread size J Bending strength Surface durability Bending strength Surface durability

―――――

―――――

26.4 29.6 27.3 30.0 32.7

9.01 10.5 10.1 11.6 13.1

2.69 3.01 2.78 3.06 3.34

0.92 1.07 1.03 1.18 1.34

0.10~0.200.10~0.200.10~0.200.10~0.200.10~0.20

0.11 0.14 0.16 0.19 0.22

SSG2-14 SSG2-15 SSG2-16 SSG2-17 SSG2-18

―――――

―――――

35.5 38.3 41.1 44.0 46.9

14.8 16.6 18.4 20.4 22.5

3.62 3.91 4.20 4.49 4.78

1.51 1.69 1.88 2.08 2.30

0.10~0.200.10~0.200.10~0.200.10~0.200.10~0.20

0.24 0.25 0.28 0.32 0.35

SSG2-19 SSG2-20 SSG2-21 SSG2-22SSG2-23

―――――

―――――

49.8 52.7 55.7 58.6 61.6

24.7 27.0 29.3 31.7 34.2

5.08 5.38 5.68 5.98 6.28

2.52 2.75 2.99 3.23 3.49

0.10~0.200.10~0.200.12~0.220.12~0.220.12~0.22

0.38 0.42 0.46 0.50 0.54

SSG2-24 SSG2-25 SSG2-26 SSG2-27 SSG2-28

―――――

―――――

64.6 67.6 73.7 79.8 82.8

36.8 39.5 45.2 51.3 54.5

6.59 6.89 7.51 8.13 8.45

3.75 4.03 4.61 5.23 5.56

0.12~0.220.12~0.220.12~0.220.12~0.220.12~0.22

0.59 0.620.68 0.74 0.78

SSG2-29 SSG2-30 SSG2-32 SSG2-34 SSG2-35

―――――

―――――

85.9 92.1 98.3105111

57.8 64.8 72.1 79.9 88.1

8.76 9.39

10.0 10.7 11.3

5.90 6.60 7.358.15 8.98

0.12~0.220.12~0.220.12~0.220.12~0.220.12~0.22

0.81 0.89 1.06 1.14 1.22

SSG2-36 SSG2-38 SSG2-40 SSG2-42 SSG2-44

―――――

―――――

114 114 120 134 137

92.3 97.6

106 130 135

11.6 11.6 12.2 13.7 14.0

9.41 9.95

10.8 13.3 13.8

0.12~0.220.12~0.220.12~0.220.14~0.240.14~0.24

1.27 1.40 1.451.71 1.76

SSG2-45 SSG2-48 SSG2-50 SSG2-55 SSG2-56

―――――

―――――

149 161 179 194 194

156 179 216 249 265

15.2 16.4 18.2 19.7 19.8

15.9 18.3 22.0 25.4 27.0

0.14~0.240.14~0.240.14~0.240.14~0.240.14~0.24

2.05 2.30 2.76 3.12 3.65

SSG2-60 SSG2-64 SSG2-70 SSG2-75 SSG2-80

――

――

222 250

338 421

22.6 25.4

34.5 43.0

0.14~0.240.14~0.24

4.49 5.42

SSG2-90 SSG2-100

Spur

G

ears

SSG

Ground Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

Tooth surface Induction hardened

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

48~53HRC

Black oxide except ground surfaces

Ground

Bore

JIS N7 grade (JIS B1702-1: 1998) OLD JIS 3 grade (JIS B1702: 1976)

Datum reference surface for gear grinding

Possible except tooth area

■ Module 2.5

52

NOTE 1: Secondary operations may be performed on these gears except for modification of the gear face width.

S1 Shape

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width NOTE 1 Hub width Total length Keyway

AH7 B C D E F G Width × Depth

SSG2.5-14 SSG2.5-15 SSG2.5-16 SSG2.5-17 SSG2.5-18

m2.5

1415161718

S1S1S1S1S1

1515151515

2830323538

3537.54042.545

4042.54547.550

25 18 43 ―

SSG2.5-19 SSG2.5-20 SSG2.5-21 SSG2.5-22 SSG2.5-23

1920212223

S1S1S1S1S1

1518181818

3940424446

47.55052.55557.5

52.55557.56062.5

25 18 43 ―

SSG2.5-24 SSG2.5-25 SSG2.5-26 SSG5.5-27 SSG2.5-28

2425 26 2728

S1S1S1S1S1

1820202020

4850545660

6062.56567.570

6567.57072.575

25 18 43 ―

SSG2.5-29 SSG2.5-30 SSG2.5-32 SSG2.5-34 SSG2.5-35

3032 34 3536

S1S1S1S1S1

2020202020

6065707070

72.575808587.5

77.580859092.5

25 18 43 ―

SSG2.5-36 SSG2.5-38 SSG2.5-40 SSG2.5-42 SSG2.5-44

3638404244

S1S1S1S1S1

2020252525

7070707575

9095

100105110

95100105110115

25 18 43 ―

SSG2.5-45 SSG2.5-48 SSG2.5-50 SSG2.5-55 SSG2.5-56

45485055 56

S1S1S1S1S1

2525252525

7575808080

112.5120125137.5140

117.5125130142.5145

25 18 43 ―

SSG2.5-60 SSG2.5-70 SSG2.5-75 SSG2.5-80

60707580

S1S1S1S1

25252525

80809090

150175187.5200

155180192.5205

25 18 43 ―

SSG Ground Spur Gears 2.5Module

Spur

G

ears

SSG

53

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details. NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Threaded hole Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash

(mm)NOTE 3

Weight(kg) Catalog No.

Thread size J Bending strength Surface durability Bending strength Surface durability

―――――

―――――

43.0 48.1 53.3 58.6 63.9

14.9 17.4 20.1 23.0 26.1

4.39 4.91 5.44 5.97 6.52

1.52 1.77 2.05 2.34 2.66

0.10~0.200.10~0.200.10~0.200.10~0.200.10~0.20

0.22 0.26 0.30 0.35 0.41

SSG2.5-14 SSG2.5-15 SSG2.5-16 SSG2.5-17 SSG2.5-18

―――――

―――――

69.4 74.8 80.4 86.0 91.6

29.4 32.9 36.7 40.6 44.8

7.07 7.63 8.20 8.77 9.34

3.00 3.36 3.74 4.14 4.57

0.10~0.200.10~0.200.12~0.220.12~0.220.12~0.22

0.46 0.48 0.53 0.60 0.66

SSG2.5-19 SSG2.5-20 SSG2.5-21 SSG2.5-22 SSG2.5-23

―――――

―――――

97.3 103 109 115 120

49.2 53.8 58.4 63.2 68.2

9.92 10.5 11.1 11.7 12.3

5.02 5.48 5.95 6.44 6.95

0.12~0.220.12~0.220.12~0.220.12~0.220.12~0.22

0.72 0.77 0.87 0.941.05

SSG2.5-24 SSG2.5-25 SSG2.5-26 SSG5.5-27 SSG2.5-28

―――――

―――――

126 132 144 156 162

73.3 78.7 90.1

102 109

12.9 13.5 14.7 15.9 16.5

7.488.03 9.19

10.4 11.1

0.12~0.220.12~0.220.12~0.220.12~0.220.12~0.22

1.10 1.23 1.42 1.55 1.62

SSG2.5-29 SSG2.5-30 SSG2.5-32 SSG2.5-34 SSG2.5-35

―――――

―――――

168 180177 188 200

115 129 133 147 163

17.1 18.3 18.1 19.2 20.4

11.8 13.213.6 15.0 16.6

0.12~0.220.12~0.220.12~0.220.14~0.240.14~0.24

1.69 1.831.92 2.16 2.32

SSG2.5-36 SSG2.5-38 SSG2.5-40 SSG2.5-42 SSG2.5-44

―――――

―――――

205 222 234 262 268

170 195 213 260 270

20.9 22.7 23.8 26.8 27.3

17.4 19.9 21.7 26.5 27.5

0.14~0.240.14~0.240.14~0.240.14~0.240.14~0.24

2.41 2.68 2.95 3.46 3.57

SSG2.5-45 SSG2.5-48 SSG2.5-50 SSG2.5-55 SSG2.5-56

――――

――――

291 324 351 378

311 399 461 527

29.7 33.1 35.8 38.6

31.8 40.7 47.0 53.7

0.14~0.240.14~0.240.14~0.240.14~0.24

4.01 5.26 6.15 6.90

SSG2.5-60 SSG2.5-70 SSG2.5-75 SSG2.5-80

Spur

G

ears

SSG

Ground Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

Tooth surface Induction hardened

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

48~53HRC

Black oxide except ground surfaces

Ground

Bore

JIS N7 grade (JIS B1702-1: 1998) OLD JIS 3 grade (JIS B1702: 1976)

Datum reference surface for gear grinding

Possible except tooth area

54

NOTE 1: Secondary operations may be performed on these gears except for modification of the gear face width.

S1 Shape

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width NOTE 1 Hub width Total length Keyway

AH7 B C D E F G Width × Depth

SSG3-14 SSG3-15 SSG3-16 SSG3-17 SSG3-18

m3

1415161718

S1S1S1S1S1

1616161616

3436383740

4245485154

4851545760

30 20 50 ―

SSG3-19 SSG3-20 SSG3-21 SSG3-22 SSG3-23

1920212223

S1S1S1S1S1

1620202020

4550525456

5760636669

6366697275

30 20 50 ―

SSG3-24 SSG3-25 SSG3-26 SSG3-27 SSG3-28

2425 26 2728

S1S1S1S1S1

2020202020

5860626570

7275788184

7881848790

30 20 50 ―

SSG3-29 SSG3-30 SSG3-32 SSG3-34 SSG3-35

3032 34 3536

S1S1S1S1S1

2025252525

7075757580

879096

102105

9396

102108111

30 20 50 ―

SSG3-36 SSG3-38 SSG3-40 SSG3-42 SSG3-44

3638404244

S1S1S1S1S1

2525252525

8080808080

108114120126132

114120126132138

30 20 50 ―

SSG3-45 SSG3-48 SSG3-50 SSG3-55 SSG3-56

45485055 56

S1S1S1S1S1

2525303030

8085859090

135144150165168

141150156171174

30 20 50 ―

SSG3-60 SSG3-70 SSG3-75 SSG3-80

60707580

S1S1S1S1

30303030

100100100100

180210225240

186216231246

30 20 50 ―

SSG Ground Spur Gears 3Module

Spur

G

ears

SSG

■ Module 3

55

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Threaded hole Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash

(mm)NOTE 3

Weight(kg) Catalog No.

Thread size J Bending strength Surface durability Bending strength Surface durability

―――――

―――――

74.3 83.1 92.1

101 110

26.1 30.5 35.2 40.3 45.8

7.58 8.48 9.39

10.3 11.3

2.66 3.11 3.59 4.11 4.67

0.10~0.200.10~0.200.10~0.200.12~0.220.12~0.22

0.39 0.46 0.53 0.57 0.66

SSG3-14 SSG3-15 SSG3-16 SSG3-17 SSG3-18

―――――

―――――

120 129 139 149 158

51.6 57.8 64.471.3 78.7

12.2 13.2 14.215.1 16.1

5.26 5.90 6.577.28 8.02

0.12~0.220.12~0.220.12~0.220.12~0.220.12~0.22

0.77 0.85 0.94 1.04 1.14

SSG3-19 SSG3-20 SSG3-21 SSG3-22 SSG3-23

―――――

―――――

168 178 188 198 208

86.4 94.5

103 111 120

17.1 18.1 19.2 20.2 21.2

8.81 9.64

10.5 11.3 12.2

0.12~0.220.12~0.220.12~0.220.12~0.220.12~0.22

1.25 1.36 1.48 1.61 1.79

SSG3-24 SSG3-25 SSG3-26 SSG3-27 SSG3-28

―――――

―――――

218 228 229 248 258

129 138 146 166 177

22.2 23.3 23.4 25.3 26.3

13.2 14.1 14.9 17.0 18.0

0.12~0.220.12~0.220.12~0.220.14~0.240.14~0.24

1.88 2.00 2.21 2.43 2.64

SSG3-29 SSG3-30 SSG3-32 SSG3-34 SSG3-35

―――――

―――――

268 287 306 326 345

188 210 234 260 286

27.3 29.2 31.2 33.2 35.2

19.1 21.4 23.9 26.5 29.2

0.14~0.240.14~0.240.14~0.240.14~0.240.14~0.24

2.75 3.00 3.26 3.53 3.82

SSG3-36 SSG3-38 SSG3-40 SSG3-42 SSG3-44

―――――

―――――

355 384 404 421 430

300 343 374 423 439

36.2 39.2 41.2 42.9 43.9

30.6 35.0 38.1 43.2 44.8

0.14~0.240.14~0.240.14~0.240.14~0.240.14~0.24

3.97 4.53 4.78 5.76 5.94

SSG3-45 SSG3-48 SSG3-50 SSG3-55 SSG3-56

――――

――――

467 560 607 654

508 699 806 921

47.6 57.1 61.9 66.7

51.8 71.3 82.2 93.9

0.14~0.240.14~0.240.14~0.240.14~0.24

6.95 9.11

10.3 11.6

SSG3-60 SSG3-70 SSG3-75 SSG3-80

Spur

G

ears

SSG

Ground Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

Tooth surface Induction hardened

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

48~53HRC

Black oxide except ground surfaces

Ground

Bore

JIS N7 grade (JIS B1702-1: 1998) OLD JIS 3 grade (JIS B1702: 1976)

Datum reference surface for gear grinding

Possible except tooth area

56

NOTE 1: Secondary operations may be performed on these gears except for modification of the gear face width.

S1 Shape

Catalog No.New items indicated in blue letters.

Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width NOTE 1 Hub width Total length

AH7 B C D E F GSSG4-14SSG4-15SSG4-16SSG4-18SSG4-20

m4

1415161820

S1S1S1S1S1

2020202020

4045506065

5660647280

6468728088

4040404040

2525252525

6565656565

SSG4-22SSG4-24SSG4-25SSG4-28SSG4-30

2224252830

S1S1S1S1S1

2020202020

7075808590

8896

100112120

96104108120128

4040404040

2525252525

6565656565

SSG4-32SSG4-35SSG4-36SSG4-40SSG4-42

3235364042

S1S1S1S1S1

2525252525

9090909090

128140144160168

136148152168176

4040404040

2525252525

6565656565

SSG4-44SSG4-45SSG4-48SSG4-50SSG4-55

4445485055

S1S1S1S1S1

3030303030

9090

100100100

176180192200220

184188200208228

4040404040

2525252525

6565656565

SSG4-56SSG4-60

5660

S1S1

3030

110110

224240

232248

4040

2525

6565

SSG Ground Spur Gears 4Module

Spur

G

ears

SSG

■ Module 4

57

■ This picture is an example of poor tooth

contact of an SSG3-30 gear which had only

30% of the gear tooth in proper contact. In

this example the gear oil used is equivalent

to JIS gear oil category 2, No.3, and the

design conditions were 417 N.m load torque

at 278 min-1 (12 kW) which was 1.5 times the

allowable bending strength and 3 times the

allowable surface durability torque.

The pitting occurred due to poor tooth contact

area after 60 hours of continuous operation.

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions.Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash

(mm)NOTE 3

Weight(kg)

Catalog No.New items indicated in blue letters.Bending strength Surface durability Bending strength Surface durability

176 197 218 262 307

63.4 74.1 85.6

111 141

18.0 20.1 22.3 26.7 31.3

6.47 7.55 8.73

11.4 14.3

0.14~0.240.14~0.240.14~0.240.14~0.240.14~0.24

0.86 1.04 1.24 1.67 2.07

SSG4-14SSG4-15SSG4-16SSG4-18SSG4-20

352 368 389 455 499

174 194 213 270 313

35.9 37.5 39.7 46.4 50.9

17.7 19.8 21.7 27.5 31.9

0.14~0.240.14~0.240.14~0.240.16~0.260.16~0.26

2.50 2.98 3.29 4.05 4.64

SSG4-22SSG4-24SSG4-25SSG4-28SSG4-30

544 612 634 674 717

358 432 458 529 586

55.5 62.4 64.7 68.7 73.1

36.5 44.0 46.7 54.0 59.7

0.16~0.260.16~0.260.16~0.260.16~0.260.16~0.26

5.04 5.83 6.11 7.31 7.96

SSG4-32SSG4-35SSG4-36SSG4-40SSG4-42

760 781 846 889 998

646 677 774 842

1030

77.5 79.6 86.3 90.7

102

65.8 69.0 79.0 85.9

105

0.16~0.260.16~0.260.16~0.260.16~0.260.16~0.26

8.53 8.88

10.3 11.0 13.1

SSG4-44SSG4-45SSG4-48SSG4-50SSG4-55

10201110

10601230

104 113

109 125

0.16~0.260.16~0.26

13.9 15.7

SSG4-56SSG4-60

Spur

G

ears

SSG

Ground Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

Tooth surface Induction hardened

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

48~53HRC

Black oxide except ground surfaces

Ground

Bore

JIS N7 grade (JIS B1702-1: 1998) OLD JIS 3 grade (JIS B1702: 1976)

Datum reference surface for gear grinding

Possible except tooth area

62

11

30

11

32

58

NOTE 1: Since 10- and 11-tooth gears are profile shifted gears (x=+0.5), please note that the center distance must be obtained by using the formulas for profile shifted gears.NOTE 2: Secondary operations may be performed on these gears except for modification of the gear face width.

Number(x=+0.5)10

21.4640 22.4653 22.9660 23.4666 24.4677 25.4688 26.4698 27.470727.9712 28.4716 29.4725 30.4733 31.4740 32.4747 32.9750 33.4754 34.4760 35.4766 36.4772

21.964722.966023.466623.967124.968325.969326.970327.971228.471628.972129.972930.973631.974432.975033.475433.975734.976335.976936.9774

Number(x=0)

34 35 36 38 40 42 44 45 46 48 50 52 54 55 56 58 60

■ Center distance when gear has 32 to 62 teeth (unit:mm)

Number(x=+0.5)10

11.9428 12.4446 12.9462 13.4477 13.9492 14.4505 14.9518 15.4530 15.9542 16.4553 16.9564 17.4574 17.9583 18.4592 18.9601 19.4610 19.9618 20.4625

11.942812.444612.946213.447713.949214.450514.951815.453015.954216.455316.956417.457417.958318.459218.960119.461019.9618 20.4625 20.9633

Number(x=0)

12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

■ Center distance when gear has 12 to 30 teeth (unit:mm)

■ The following tables present the center distances when a profile shifted module 1 spur gears (x=+0.5) with 10 or 11 teeth meshes with standard stock spur gear (x=0). Multiply the values with the module of gears for other than module 1 gears.

11.4410

S7 Shape

■ Module 1.5~3

Catalog No. Module No. of teeth NOTE 1

Profile shiftcoeffiicient Shape

Shaft dia. (L) Shaft length (L) Pitch dia. Outside dia. Face width NOTE 2 Shaft dia. (R) Shaft length (R) Total length

A' F' C D E A F GSSGS1.5-10SSGS1.5-11SSGS1.5-12SSGS1.5-13

m1.5

10111213

+0.5+0.5

00

S7S7S7S7

12.213.713.715.2

25252525

1516.51819.5

19.3520.852122.5

15151515

12.213.713.715.2

100100100100

140140140140

SSGS2-10SSGS2-11SSGS2-12SSGS2-13

m2

10111213

+0.5+0.5

00

S7S7S7S7

16.218.218.220.2

30303030

20222426

25.827.82830

20202020

16.218.218.220.2

120120120120

170170170170

SSGS2.5-10SSGS2.5-11SSGS2.5-12SSGS2.5-13

m2.5

10111213

+0.5+0.5

00

S7S7S7S7

20.222.722.725.2

35353535

2527.53032.5

32.2534.753537.5

25252525

20.222.722.725.2

135135135135

195195195195

SSGS3-10SSGS3-11SSGS3-12SSGS3-13

m3

10111213

+0.5+0.5

00

S7S7S7S7

24.227.227.230.2

40404040

30333639

38.741.74245

30303030

24.227.227.230.2

150150150150

220220220220

SSGS Ground Spur Pinion Shafts 1.5~3Modules

Spur

G

ears

SSGS

Above

20

Above

20

200

11

59

NOTE 3: The allowable torques shown in the table are calculated values according to the assumed usage conditions.Please see page 27 for more details.

NOTE 4: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Number(x=+0.5)10

037.4777 037.9780 038.4782 039.4787 040.4792 041.4796 042.9803 043.4805 045.4813 047.4820 047.9822 049.4826 050.4830 052.9837 055.4844 065.4866 080.4890 105.4915

037.9780 038.4782 038.9785 039.9790 040.9794 041.9799 043.4805 043.9807 045.9814 047.9822 048.4823 049.9828 050.9831 053.4838 055.9845 065.9867 080.9890 105.9915

Number(x=0)

064 065 066 068 070 072 075 076 080 084 085 088 090 095 100 120 150

■ Center distance when gear has 64 to 200 teeth (unit: mm)

whereax: Assembly distance

H : Height of pitch line of rack m : Module z : No. of teeth x : Coefficient of profile shift

■ Assembly distance of profile shifted gear and meshing rack

ax = + H + xm zm 2

Allowable torque(N・m) NOTE 3 Allowable torque(kgf・m) Backlash(mm) NOTE 4

Weight(kg)

Catalog No.Bending strength Surface durability Bending strength Surface durability

12.7 14.5 12.0 13.6

3.76 4.61 4.70 5.51

1.30 1.48 1.22 1.39

0.38 0.47 0.48 0.56

0.08~0.160.08~0.160.08~0.160.08~0.16

0.140.170.170.21

SSGS1.5-10SSGS1.5-11SSGS1.5-12SSGS1.5-13

30.2 34.3 28.4 32.3

9.07 11.0 11.3 13.3

3.08 3.50 2.90 3.30

0.93 1.12 1.15 1.35

0.11~0.210.11~0.210.11~0.210.11~0.21

0.300.380.380.46

SSGS2-10SSGS2-11SSGS2-12SSGS2-13

58.9 67.1 55.5 52.6

17.9 22.0 22.4 21.9

6.01 6.84 5.66 5.36

1.83 2.24 2.28 2.23

0.11~0.210.11~0.210.11~0.210.11~0.21

0.540.680.680.83

SSGS2.5-10SSGS2.5-11SSGS2.5-12SSGS2.5-13

102 96.6 79.9 90.9

31.3 31.9 32.6 38.3

10.4 9.85 8.15 9.27

3.19 3.26 3.32 3.91

0.11~0.210.11~0.210.11~0.210.11~0.21

0.891.101.101.40

SSGS3-10SSGS3-11SSGS3-12SSGS3-13

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

48~53HRC

Black oxide except ground surfaces

Ground

Shaft (ground portion)

JIS N7 grade (JIS B1702-1: 1998) OLD JIS 3 grade (JIS B1702: 1976)

Datum reference surface for gear grinding

Possible except tooth area

Spur

G

ears

SSGS

Ground Spur Pinion Shafts

Thermal refining, tooth surfaces induction hardened

■ Module 1

60

S1 Shape S3 Shape

SS Steel Spur Gears 1Module

Spur

G

ears

SS

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Keyway

AH7 B C D E F G Width × Depth

SS1-15 SS1-16 SS1-17 SS1-18 SS1-19

m1

1516171819

S3S3S3S3S3

88888

1718192021

1516171819

1718192021

1010101010

2020202020

3030303030

―――――

SS1-20 SS1-21 SS1-22 SS1-23 SS1-24

2021222324

S1S1S1S1S1

88888

1617181820

2021222324

2223242526

1010101010

2020202020

3030303030

―――――

SS1-25 SS1-26 SS1-27 SS1-28 SS1-29

2526272829

S1S1S1S1S1

88888

2022222224

2526272829

2728293031

1010101010

2020202020

3030303030

―――――

SS1-30 SS1-32 SS1-34 SS1-35 SS1-36

3032343536

S1S1S1S1S1

1010101010

2526262628

3032343536

3234363738

1010101010

2020202020

3030303030

―――――

SS1-38 SS1-40 SS1-42 SS1-44 SS1-45

3840424445

S1S1S1S1S1

1010101010

3235353535

3840424445

4042444647

1010101010

2020202020

3030303030

―――――

SS1-46 SS1-48 SS1-50 SS1-52 SS1-54

4648505254

S1S1S1S1S1

1010101010

3535353535

4648505254

4850525456

1010101010

2020202020

3030303030

―――――

SS1-55 SS1-56 SS1-58 SS1-60 SS1-62

5556586062

S1S1S1S1S1

1010101010

3535353540

5556586062

5758606264

1010101010

2020202020

3030303030

―――――

SS1-64 SS1-65 SS1-66 SS1-68 SS1-70

6465666870

S1S1S1S1S1

1010101010

4040404040

6465666870

6667687072

1010101010

2020202020

3030303030

―――――

SS1-72 SS1-75 SS1-76 SS1-80 SS1-84

7275768084

S1S1S1S1S1

1010101010

4040404040

7275768084

7477788286

1010101010

2020202020

3030303030

―――――

SS1-85 SS1-88SS1-90 SS1-95 SS1-96

8588909596

S1S1S1S1S1

1010101010

4040404040

8588909596

8790929798

1010101010

2020202020

3030303030

―――――

SS1-100 SS1-110 SS1-120 SS1-150 SS1-200

100110120150200

S1S1S1S1S1

1015152020

405050

120160

100110120150200

102112122152202

1010101010

2020202020

3030303030

―――――

61

NOTE 1: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 2: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 194HB

Black oxide

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

Spur

G

ears

SS

Steel Spur Gears

Threaded hole Allowable torque(N・m) NOTE 1 Allowable torque(kgf・m) Backlash(mm) NOTE 2

Weight(kg) Catalog No.

Thread size J Bending strength Surface durability Bending strength Surface durability

―――――

―――――

3.694.094.54.915.33

0.170.2

0.230.260.29

0.380.420.460.5

0.54

0.0180.0210.0230.0270.030

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.038 0.044 0.050 0.057 0.065

SS1-15 SS1-16 SS1-17 SS1-18 SS1-19

―――――

―――――

5.756.176.67.037.47

0.330.360.4

0.450.49

0.590.630.670.720.76

0.0330.0370.0410.0450.050

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.033 0.037 0.042 0.045 0.052

SS1-20 SS1-21 SS1-22 SS1-23 SS1-24

―――――

―――――

7.918.358.799.249.69

0.540.580.630.680.73

0.810.850.9

0.940.99

0.0550.0590.0640.0700.075

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.055 0.064 0.067 0.070 0.079

SS1-25 SS1-26 SS1-27 SS1-28 SS1-29

―――――

―――――

10.111.112.012.412.9

0.790.9012.012.412.9

1.031.131.221.271.31

0.0810.0920.100.110.12

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.082 0.092 0.10 0.10 0.12

SS1-30 SS1-32 SS1-34 SS1-35 SS1-36

―――――

―――――

13.814.715.716.617.1

1.301.451.611.771.86

1.411.501.601.691.74

0.130.150.160.180.19

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.14 0.16 0.17 0.18 0.19

SS1-38 SS1-40 SS1-42 SS1-44 SS1-45

―――――

―――――

17.618.519.520.421.4

1.952.132.322.522.73

1.791.891.982.082.18

0.200.220.240.260.28

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.19 0.21 0.22 0.23 0.24

SS1-46 SS1-48 SS1-50 SS1-52 SS1-54

―――――

―――――

21.822.323.324.225.2

2.832.943.173.403.64

2.232.282.372.472.57

0.290.300.320.350.37

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.25 0.26 0.27 0.29 0.32

SS1-55 SS1-56 SS1-58 SS1-60 SS1-62

―――――

―――――

26.226.627.128.129.1

3.894.024.154.424.70

2.672.722.772.862.96

0.400.410.420.450.48

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.340.35 0.35 0.37 0.39

SS1-64 SS1-65 SS1-66 SS1-68 SS1-70

―――――

―――――

30.031.532.033.935.8

4.985.435.596.236.90

3.063.213.263.463.66

0.510.550.570.630.7

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.41 0.43 0.44 0.48 0.52

SS1-72 SS1-75 SS1-76 SS1-80 SS1-84

―――――

―――――

36.337.838.841.241.7

7.087.627.988.959.15

3.713.853.954.204.25

0.720.780.810.910.93

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.53 0.56 0.59 0.64 0.65

SS1-85 SS1-88SS1-90 SS1-95 SS1-96

―――――

―――――

43.748.653.568.271.5

9.9712.214.723.633.6

4.454.955.456.967.29

1.021.241.502.413.42

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.70 0.87 1.01 2.23 4.00

SS1-100 SS1-110 SS1-120 SS1-150 SS1-200

■ Module 1.5

62

S2 ShapeS1 Shape

SS Steel Spur Gears 1.5Module

Spur

G

ears

SS

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Web thickness Web O.D. Keyway

AH7 B C D E F G H I Width × Depth

SS1.5-12 SS1.5-13 SS1.5-14 SS1.5-15 SS1.5-16

m1.5

1213141516

S3S3S1S1S1

88888

2122.5161820

1819.52122.524

2122.52425.527

1515151515

1515101010

3030252525

―――――

―――――

―――――

SS1.5-17 SS1.5-18 SS1.5-19 SS1.5-20 SS1.5-21

1718192021

S1S1S1S1S1

88888

2122232425

25.52728.53031.5

28.53031.53334.5

1515151515

1010101010

2525252525

―――――

―――――

―――――

SS1.5-22 SS1.5-23 SS1.5-24SS1.5-25 SS1.5-26

2223242526

S1S1S1S1S1

8888

10

2627283032

3334.53637.539

3637.53940.542

1515151515

1010101010

2525252525

―――――

―――――

―――――

SS1.5-27 SS1.5-28 SS1.5-29 SS1.5-30 SS1.5-32

2728293032

S1S1S1S1S1

1010101010

3436373840

40.54243.54548

43.54546.54851

1515151515

1010101010

2525252525

―――――

―――――

―――――

SS1.5-34 SS1.5-35 SS1.5-36 SS1.5-38 SS1.5-40

3435363840

S1S1S1S1S1

1010101212

4042454545

5152.5545760

5455.5576063

1515151515

1010101010

2525252525

―――――

―――――

―――――

SS1.5-42 SS1.5-44 SS1.5-45 SS1.5-46 SS1.5-48

4244454648

S1S1S1S1S1

1212121212

4545454545

636667.56972

666970.57275

1515151515

1010101010

2525252525

―――――

―――――

―――――

SS1.5-50 SS1.5-52 SS1.5-54 SS1.5-55 SS1.5-56

5052545556

S1S1S1S1S1

1215151515

4550505050

75788182.584

78818485.587

1515151515

1010101010

2525252525

―――――

―――――

―――――

SS1.5-58SS1.5-60 SS1.5-62 SS1.5-64 SS1.5-65

5860626465

S1S1S1S1S1

1515151515

5050555555

8790939697.5

90939699

100.5

1515151515

1010101010

2525252525

―――――

―――――

―――――

SS1.5-66 SS1.5-68 SS1.5-70 SS1.5-72 SS1.5-75

6668707275

S1S1S1S1S1

1515151515

5555555560

99102105108112.5

102105108111115.5

1515151515

1010101010

2525252525

―――――

―――――

―――――

SS1.5-76 SS1.5-80 SS1.5-84SS1.5-85 SS1.5-88

7680848588

S1S1S1S1S1

1515151515

6060606060

114120126127.5132

117123129130.5135

1515151515

1010101010

2525252525

―――――

―――――

―――――

SS1.5-90 SS1.5-95 SS1.5-100 SS1.5-120 SS1.5-150

9095

100120150

S1S1S2S2S1

1515151520

60606070

180

135142.5150180225

138145.5153183228

1515151515

1010101010

2525252525

――9

10―

――

125153―

―――――

SS1.5-200 200 S1 25 240 300 303 15 10 25 ― ― ―

63

NOTE 1: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.NOTE 2: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

S3 Shape

Spur

G

ears

SS

Steel Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 194HB

Black oxide

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

Threaded hole Allowable torque(N・m) NOTE 1 Allowable torque(kgf・m) Backlash(mm) NOTE 2

Weight(kg) Catalog No.

Thread size J Bending strength Surface durability Bending strength Surface durability

―――――

―――――

8.59 9.86 11.2 12.5 13.8

0.36 0.44 0.52 0.60 0.70

0.88 1.01 1.14 1.27 1.41

0.037 0.045 0.053 0.062 0.071

0.10~0.220.10~0.220.10~0.220.10~0.220.10~0.22

0.059 0.070 0.047 0.057 0.068

SS1.5-12 SS1.5-13 SS1.5-14 SS1.5-15 SS1.5-16

―――――

―――――

15.2 16.6 18.0 19.4 20.8

0.80 0.91 1.03 1.15 1.29

1.55 1.69 1.83 1.98 2.12

0.082 0.093 0.11 0.12 0.13

0.10~0.220.10~0.220.10~0.220.10~0.220.12~0.26

0.077 0.087 0.098 0.11 0.12

SS1.5-17 SS1.5-18 SS1.5-19 SS1.5-20 SS1.5-21

―――――

―――――

22.3 23.7 25.2 26.7 28.2

1.43 1.58 1.73 1.90 2.06

2.27 2.42 2.57 2.72 2.87

0.15 0.16 0.18 0.19 0.21

0.12~0.260.12~0.260.12~0.260.12~0.260.12~0.26

0.13 0.15 0.16 0.18 0.19

SS1.5-22 SS1.5-23 SS1.5-24SS1.5-25 SS1.5-26

―――――

―――――

29.7 31.2 32.7 34.2 37.3

2.23 2.41 2.60 2.79 3.19

3.03 3.18 3.34 3.49 3.80

0.23 0.25 0.26 0.28 0.33

0.12~0.260.12~0.260.12~0.260.12~0.260.12~0.26

0.21 0.23 0.24 0.26 0.30

SS1.5-27 SS1.5-28 SS1.5-29 SS1.5-30 SS1.5-32

―――――

―――――

40.4 41.9 43.5 46.6 49.8

3.63 3.85 4.09 4.58 5.10

4.12 4.28 4.43 4.75 5.07

0.37 0.39 0.42 0.47 0.52

0.12~0.260.12~0.260.12~0.260.12~0.260.12~0.26

0.32 0.35 0.38 0.40 0.44

SS1.5-34 SS1.5-35 SS1.5-36 SS1.5-38 SS1.5-40

―――――

―――――

52.9 56.1 57.7 59.3 62.4

5.65 6.23 6.536.83 7.47

5.40 5.72 5.88 6.04 6.37

0.58 0.64 0.67 0.70 0.76

0.14~0.320.14~0.320.14~0.320.14~0.320.14~0.32

0.47 0.51 0.52 0.54 0.58

SS1.5-42 SS1.5-44 SS1.5-45 SS1.5-46 SS1.5-48

―――――

―――――

65.7 68.9 72.1 73.7 75.3

8.15 8.85 9.59 9.96 10.4

6.69 7.02 7.35 7.51 7.68

0.83 0.90 0.98 1.02 1.06

0.14~0.320.14~0.320.14~0.320.14~0.320.14~0.32

0.62 0.68 0.73 0.75 0.77

SS1.5-50 SS1.5-52 SS1.5-54 SS1.5-55 SS1.5-56

―――――

―――――

78.5 81.8 85.0 88.3 89.9

11.2 12.0 12.8 13.7 14.2

8.01 8.34 8.67 9.00 9.17

1.14 1.22 1.31 1.40 1.45

0.14~0.320.14~0.320.14~0.320.14~0.320.14~0.32

0.82 0.87 0.95 1.00 1.03

SS1.5-58SS1.5-60 SS1.5-62 SS1.5-64 SS1.5-65

―――――

―――――

91.5 94.8 98.0 101 106

14.6 15.6 16.6 17.6 19.2

9.33 9.66 10.0 10.3 10.8

1.49 1.59 1.69 1.79 1.95

0.14~0.320.14~0.320.14~0.320.14~0.320.14~0.32

1.06 1.11 1.17 1.23 1.36

SS1.5-66 SS1.5-68 SS1.5-70 SS1.5-72 SS1.5-75

―――――

―――――

108 114 121 123 128

19.7 22.0 24.4 25.1 27.0

11.0 11.7 12.3 12.5 13.0

2.01 2.24 2.49 2.56 2.75

0.14~0.320.14~0.320.18~0.380.18~0.380.18~0.38

1.39 1.52 1.66 1.69 1.80

SS1.5-76 SS1.5-80 SS1.5-84SS1.5-85 SS1.5-88

―――――

―――――

131 139 147 180 192

28.3 31.8 35.5 52.3 70.3

13.3 14.2 15.0 18.4 19.6

2.89 3.24 3.62 5.33 7.17

0.18~0.380.18~0.380.18~0.380.18~0.380.18~0.38

1.87 2.07 1.88 2.74 6.62

SS1.5-90 SS1.5-95 SS1.5-100 SS1.5-120 SS1.5-150

― ― 261 131 26.7 13.3 0.22~0.46 11.8 SS1.5-200

■ Module 2

64

S2 ShapeS1 Shape

SS Steel Spur Gears 2Module

Spur

G

ears

SS

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Web thickness Web O.D. Keyway

AH7 B C D E F G H I Width × Depth

SS2-12 SS2-13 SS2-14 SS2-15 SS2-16

m2

1213141516

S1S1S1S1S1

1010101212

1820202426

2426283032

2830323436

2020202020

1010101010

3030303030

―――――

―――――

―――――

SS2-17SS2-18 SS2-19 SS2-20 SS2-21

1718192021

S1S1S1S1S1

1212121212

2830313234

3436384042

3840424446

2020202020

1010101010

3030303030

―――――

―――――

―――――

SS2-22 SS2-23 SS2-24 SS2-25 SS2-26

2223242526

S1S1S1S1S1

1212121212

3637384042

4446485052

4850525456

2020202020

1010101010

3030303030

―――――

―――――

―――――

SS2-27 SS2-28 SS2-29 SS2-30 SS2-32

2728293032

S1S1S1S1S1

1212121212

4545475050

5456586064

5860626468

2020202020

1010101010

3030303030

―――――

―――――

―――――

SS2-34 SS2-35 SS2-36 SS2-38 SS2-40

3435363840

S1S1S1S1S1

1212121215

5052555555

6870727680

7274768084

2020202020

1010101010

3030303030

―――――

―――――

―――――

SS2-42 SS2-44 SS2-45 SS2-46 SS2-48

4244454648

S1S1S1S1S1

1515151515

5555555555

8488909296

88929496

100

2020202020

1010101010

3030303030

―――――

―――――

―――――

SS2-50 SS2-52 SS2-54 SS2-55 SS2-56

5052545556

S1S1S1S1S1

1515151515

5555555555

100104108110112

104108112114116

2020202020

1010101010

3030303030

―――――

―――――

―――――

SS2-58 SS2-60 SS2-62 SS2-64 SS2-65

5860626465

S1S1S1S1S1

1515151515

6060606060

116120124128130

120124128132134

2020202020

1010101010

3030303030

―――――

―――――

―――――

SS2-66 SS2-68 SS2-70 SS2-72 SS2-75

6668707275

S1S1S1S1S1

1515151520

6060606060

132136140144150

136140144148154

2020202020

1010101010

3030303030

―――――

―――――

―――――

SS2-76 SS2-80 SS2-84 SS2-85 SS2-88

7680848588

S1S2S2S2S2

2020202020

6060707070

152160168170176

156164172174180

2020202020

1010101010

3030303030

―12121212

―136140146150

―――――

SS2-90 SS2-95 SS2-100 SS2-120 SS2-150

9095

100120150

S2S2S2S2S1

2020202025

70707090

240

180190200240300

184194204244304

2020202020

1010101010

3030303030

12121212―

156166176210―

―――――

65

NOTE 1: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 2: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Spur

G

ears

SS

Steel Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 194HB

Black oxide

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

Threaded hole Allowable torque(N・m) NOTE 1 Allowable torque(kgf・m) Backlash(mm) NOTE 2

Weight(kg) Catalog No.

Thread size J Bending strength Surface durability Bending strength Surface durability

―――――

―――――

20.4 23.4 26.4 29.6 32.7

0.88 1.07 1.26 1.48 1.71

2.08 2.38 2.69 3.01 3.34

0.090 0.11 0.13 0.15 0.17

0.12~0.260.12~0.260.12~0.260.12~0.260.12~0.26

0.073 0.090 0.10 0.12 0.14

SS2-12 SS2-13 SS2-14 SS2-15 SS2-16

―――――

―――――

36.0 39.3 42.6 46.0 49.4

1.96 2.23 2.52 2.83 3.15

3.67 4.01 4.35 4.69 5.04

0.20 0.23 0.26 0.29 0.32

0.12~0.260.12~0.260.12~0.260.12~0.260.14~0.30

0.16 0.19 0.21 0.23 0.26

SS2-17SS2-18 SS2-19 SS2-20 SS2-21

―――――

―――――

52.8 56.3 59.8 63.3 66.8

3.50 3.86 4.24 4.64 5.04

5.39 5.74 6.09 6.45 6.81

0.36 0.39 0.43 0.47 0.51

0.14~0.300.14~0.300.14~0.300.14~0.300.14~0.30

0.29 0.32 0.35 0.38 0.42

SS2-22 SS2-23 SS2-24 SS2-25 SS2-26

―――――

―――――

70.4 73.9 77.5 81.1 88.4

5.45 5.89 6.33 6.80 7.78

7.17 7.54 7.91 8.27 9.01

0.56 0.60 0.65 0.69 0.79

0.14~0.300.14~0.300.14~0.300.14~0.300.14~0.30

0.46 0.48 0.52 0.57 0.63

SS2-27 SS2-28 SS2-29 SS2-30 SS2-32

―――――

―――――

95.7 99.3

103 111

118

8.84 9.39 9.96

11.2 12.5

9.76 10.1 10.5 11.3 12.0

0.90 0.96 1.02 1.14 1.27

0.14~0.300.14~0.300.14~0.300.14~0.300.14~0.30

0.70 0.74 0.80 0.87 0.93

SS2-34 SS2-35 SS2-36 SS2-38 SS2-40

―――――

―――――

125 133 137 140 148

13.8 15.2 16.0 16.7 18.3

12.8 13.6 13.9 14.3 15.1

1.41 1.55 1.63 1.71 1.87

0.18~0.360.18~0.360.18~0.360.18~0.360.18~0.36

1.01 1.10 1.14 1.19 1.28

SS2-42 SS2-44 SS2-45 SS2-46 SS2-48

―――――

―――――

156 163 171 175 179

19.9 21.7 23.4 24.4 25.3

15.9 16.6 17.4 17.8 18.2

2.03 2.21 2.39 2.48 2.58

0.18~0.360.18~0.360.18~0.360.18~0.360.18~0.36

1.38 1.48 1.58 1.64 1.69

SS2-50 SS2-52 SS2-54 SS2-55 SS2-56

―――――

―――――

186 194 202 209 213

27.3 29.3 31.5 33.7 34.8

19.0 19.8 20.6 21.3 21.7

2.78 2.99 3.21 3.44 3.55

0.18~0.360.18~0.360.18~0.360.18~0.360.18~0.36

1.84 1.96 2.08 2.20 2.26

SS2-58 SS2-60 SS2-62 SS2-64 SS2-65

―――――

―――――

217 225 232 240 252

36.0 38.4 40.8 43.3 47.3

22.1 22.9 23.7 24.5 25.7

3.67 3.91 4.16 4.42 4.82

0.18~0.360.18~0.360.18~0.360.18~0.360.18~0.36

2.33 2.462.60 2.742.92

SS2-66 SS2-68 SS2-70 SS2-72 SS2-75

―――――

―――――

256 271287 291 302

48.6 54.3 60.2 61.7 66.5

26.1 27.7 29.2 29.6 30.8

4.96 5.53 6.14 6.30 6.78

0.18~0.360.18~0.360.20~0.440.20~0.440.20~0.44

3.00 2.67 3.09 3.09 3.29

SS2-76 SS2-80 SS2-84 SS2-85 SS2-88

―――――

―――――

310 330 291 357 455

69.7 78.2 72.7 108 174

31.6 33.6 29.7 36.4 46.4

7.11 7.97 7.42 11.0 17.7

0.20~0.440.20~0.440.20~0.440.20~0.440.20~0.44

3.38 3.69 4.01 5.9114.5

SS2-90 SS2-95 SS2-100 SS2-120 SS2-150

■ Module 2.5

66

S2 ShapeS1 Shape

SS Steel Spur Gears 2.5Module

Spur

G

ears

SS

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Web thickness Web O.D. Keyway

AH7 B C D E F G H I Width × Depth

SS2.5-12 SS2.5-13 SS2.5-14 SS2.5-15 SS2.5-16

m2.5

1213141516

S1S1S1S1S1

1212121515

2325253032

3032.53537.540

3537.54042.545

2525252525

1212121212

3737373737

―――――

―――――

―――――

SS2.5-17 SS2.5-18SS2.5-19 SS2.5-20 SS2.5-21

1718192021

S1S1S1S1S1

1515151515

3538394042

42.54547.55052.5

47.55052.55557.5

2525252525

1212121212

3737373737

―――――

―――――

―――――

SS2.5-22 SS2.5-23 SS2.5-24 SS2.5-25 SS2.5-26

2223242526

S1S1S1S1S1

1515151515

4446485055

5557.56062.565

6062.56567.570

2525252525

1212121212

3737373737

―――――

―――――

―――――

SS2.5-27 SS2.5-28 SS2.5-29 SS2.5-30 SS2.5-32

2728293032

S1S1S1S1S1

1515151515

6060626570

67.57072.57580

72.57577.58085

2525252525

1212121212

3737373737

―――――

―――――

―――――

SS2.5-34 SS2.5-35 SS2.5-36 SS2.5-38 SS2.5-40

3435363840

S1S1S1S1S1

1515152020

7070707070

8587.59095

100

9092.595

100105

2525252525

1212121212

3737373737

―――――

―――――

―――――

SS2.5-42 SS2.5-44 SS2.5-45 SS2.5-46 SS2.5-48

4244454648

S1S1S1S1S1

2020202020

7070707070

105110112.5115120

110115117.5120125

2525252525

1212121212

3737373737

―――――

―――――

―――――

SS2.5-50SS2.5-52 SS2.5-54 SS2.5-55 SS2.5-56

5052545556

S1S1S1S1S1

2020202020

7070707070

125130135137.5140

130135140142.5145

2525252525

1212121212

3737373737

―――――

―――――

―――――

SS2.5-58 SS2.5-60 SS2.5-62 SS2.5-64 SS2.5-65

5860626465

S1S4S2S2S2

2025252525

7070808080

145150155160162.5

150155160165167.5

2525252525

1212121212

3737373737

―(10)151515

―(127)130131134

―――――

SS2.5-66 SS2.5-68 SS2.5-70 SS2.5-72 SS2.5-75

6668707275

S2S2S2S2S2

2525252525

8080808080

165170175180187.5

170175180185192.5

2525252525

1212121212

3737373737

1515151515

140140146151159

―――――

SS2.5-76 SS2.5-80 SS2.5-90 SS2.5-100 SS2.5-120

768090

100120

S2S4S4S4S4

2525303030

80809090

100

190200225250300

195205230255305

2525252525

1212121212

3737373737

15(10)(10)(10)(10)

160(177)(202)(227)(277)

―――――

67

NOTE 1: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 2: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

* FD has the die-forged finish.

S4 Shape

Spur

G

ears

SS

Steel Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 194HB

Black oxide

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

Threaded hole Allowable torque(N・m) NOTE 1 Allowable torque(kgf・m) Backlash(mm) NOTE 2

Weight(kg) Catalog No.

Thread size J Bending strength Surface durability Bending strength Surface durability

―――――

―――――

39.845.651.657.764

1.772.142.532.963.43

4.064.655.265.896.52

0.180.220.260.300.35

0.14~0.280.14~0.280.14~0.280.14~0.280.14~0.28

0.15 0.18 0.20 0.23 0.27

SS2.5-12 SS2.5-13 SS2.5-14 SS2.5-15 SS2.5-16

―――――

―――――

70.376.783.289.896.4

3.934.475.055.666.30

7.177.828.499.169.83

0.400.460.510.580.64

0.14~0.280.14~0.280.14~0.280.14~0.280.16~0.34

0.32 0.37 0.41 0.450.50

SS2.5-17 SS2.5-18SS2.5-19 SS2.5-20 SS2.5-21

―――――

―――――

103110117124130

6.997.718.479.26

10.1

10.511.211.912.613.3

0.710.790.860.941.03

0.16~0.340.16~0.340.16~0.340.16~0.340.16~0.34

0.56 0.61 0.67 0.74 0.82

SS2.5-22 SS2.5-23 SS2.5-24 SS2.5-25 SS2.5-26

―――――

―――――

137144151159173

10.911.712.613.615.6

14.014.715.416.217.6

1.111.201.291.391.59

0.16~0.340.16~0.340.16~0.340.16~0.340.16~0.34

0.92 0.97 1.04 1.131.30

SS2.5-27 SS2.5-28 SS2.5-29 SS2.5-30 SS2.5-32

―――――

―――――

187194201216230

17.718.820.022.424.9

19.119.820.522.023.5

1.801.922.042.282.54

0.16~0.340.16~0.340.16~0.340.16~0.340.16~0.34

1.42 1.49 1.56 1.66 1.81

SS2.5-34 SS2.5-35 SS2.5-36 SS2.5-38 SS2.5-40

―――――

―――――

245260267274289

27.630.531.933.536.7

25.026.527.228.029.5

2.823.113.263.413.74

0.18~0.400.18~0.400.18~0.400.18~0.400.18~0.40

1.97 2.14 2.22 2.31 2.49

SS2.5-42 SS2.5-44 SS2.5-45 SS2.5-46 SS2.5-48

―――――

―――――

304319334341349

40.043.547.249.151.0

31.032.534.034.835.6

4.084.444.815.015.20

0.18~0.400.18~0.400.18~0.400.18~0.400.18~0.40

2.68 2.88 3.08 3.19 3.29

SS2.5-50SS2.5-52 SS2.5-54 SS2.5-55 SS2.5-56

―――――

―――――

364379394409416

55.059.163.467.870.1

37.138.640.141.742.4

5.616.036.466.927.15

0.18~0.400.18~0.400.18~0.400.18~0.400.18~0.40

3.51 2.80 3.54 3.76 3.84

SS2.5-58 SS2.5-60 SS2.5-62 SS2.5-64 SS2.5-65

―――――

―――――

424439454469492

72.477.282.187.195.0

43.244.746.347.850.1

7.397.878.378.899.69

0.18~0.400.18~0.400.18~0.400.18~0.400.18~0.40

3.87 4.13 4.30 4.49 4.77

SS2.5-66 SS2.5-68 SS2.5-70 SS2.5-72 SS2.5-75

―――――

―――――

499441505569696

97.790.9117147218

50.945.051.558.071.0

9.979.27

12.015.022.2

0.18~0.400.18~0.400.22~0.480.22~0.480.22~0.48

4.90 4.42 5.64 6.78 9.38

SS2.5-76 SS2.5-80 SS2.5-90 SS2.5-100 SS2.5-120

■ Module 3

68

S2 ShapeS1 Shape

SS Steel Spur Gears 3Module

Spur

G

ears

SS

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Web thickness Web O.D. Keyway

AH7 B C D E F G H I Width × Depth

SS3-12 SS3-13 SS3-14 SS3-15 SS3-16

m2.5

1213141516

S1S1S1S1S1

1515151515

2830323638

3639424548

4245485154

3030303030

1515151515

4545454545

―――――

―――――

―――――

SS3-17 SS3-18SS3-19 SS3-20 SS3-21

1718192021

S1S1S1S1S1

1515151515

3940455052

5154576063

5760636669

3030303030

1515151515

4545454545

―――――

―――――

―――――

SS3-22 SS3-23 SS3-24 SS3-25 SS3-26

2223242526

S1S1S1S1S1

1515152020

5456586065

6669727578

7275788184

3030303030

1515151515

4545454545

―――――

―――――

―――――

SS3-27 SS3-28 SS3-29 SS3-30 SS3-32

2728293032

S1S1S1S1S1

2020202020

6570707575

8184879096

87909396

102

3030303030

1515151515

4545454545

―――――

―――――

―――――

SS3-34 SS3-35 SS3-36 SS3-38 SS3-40

3435363840

S1S1S1S1S1

2020202525

8080808080

102105108114120

108111114120126

3030303030

1515151515

4545454545

―――――

―――――

―――――

SS3-42 SS3-44 SS3-45 SS3-46 SS3-48

4244454648

S1S1S1S1S1

2525252525

8080808080

126132135138144

132138141144150

3030303030

1515151515

4545454545

―――――

―――――

―――――

SS3-50SS3-52 SS3-54 SS3-55 SS3-56

5052545556

S4S2S2S2S2

2525252525

8080808080

150156162165168

156162168171174

3030303030

1515151515

4545454545

(10)16161616

(123)126132131134

―――――

SS3-58 SS3-60 SS3-62 SS3-64 SS3-65

5860626465

S2S4S2S2S2

2525252525

8080808080

174180186192195

180186192198201

3030303030

1515151515

4545454545

16(10)161616

144(153)150158161

―――――

SS3-66 SS3-68 SS3-70 SS3-72 SS3-75

6668707275

S2S2S2S2S2

2525252525

9090909090

198204210216225

204210216222231

3030303030

1515151515

4545454545

1616161616

160170176182190

―――――

SS3-76 SS3-80 SS3-90 SS3-100 SS3-120

768090

100120

S2S4S2S4S4

2530303030

9090

100100130

228240270300360

234246276306366

3030303030

1515151515

4545454545

16(10)16

(10)(10)

190(213)240

(273)(333)

―――――

69

NOTE 1: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.NOTE 2: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

* FD has the die-forged finish.

S4 Shape

Threaded hole Allowable torque(N・m) NOTE 1 Allowable torque(kgf・m) Backlash

(mm)NOTE 2

Weight(kg) Catalog No.

Thread size J Bending strength Surface durability Bending strength Surface durability

―――――

―――――

68.778.889.299.7111

3.123.774.475.236.05

7.018.049.0910.211.3

0.320.380.460.530.62

0.14~0.320.14~0.320.14~0.320.14~0.320.14~0.32

0.25 0.30 0.36 0.43 0.50

SS3- 12 SS3- 13 SS3- 14 SS3- 15 SS3- 16

―――――

―――――

122133144155167

6.937.878.889.9511.1

12.413.514.715.817.0

0.710.800.911.021.13

0.14~0.320.14~0.320.14~0.320.14~0.320.18~0.38

0.56 0.62 0.730.83 0.92

SS3- 17 SS3- 18 SS3- 19 SS3- 20 SS3- 21

―――――

―――――

178190202214226

12.313.614.916.317.7

18.219.420.621.823.0

1.251.381.521.661.81

0.18~0.380.18~0.380.18~0.380.18~0.380.18~0.38

1.01 1.11 1.21 1.26 1.41

SS3- 22 SS3- 23 SS3- 24 SS3- 25 SS3- 26

―――――

―――――

237250262274298

19.220.722.324.027.4

24.225.426.727.930.4

1.962.112.272.442.80

0.18~0.380.18~0.380.18~0.380.18~0.380.18~0.38

1.49 1.65 1.74 1.91 2.11

SS3- 27 SS3- 28 SS3- 29 SS3- 30 SS3- 32

―――――

―――――

323335348373398

31.233.135.239.444.0

32.934.235.538.040.6

3.183.383.594.024.49

0.18~0.380.18~0.380.18~0.380.18~0.380.18~0.38

2.41 2.52 2.64 2.823.08

SS3- 34 SS3- 35 SS3- 36 SS3- 38 SS3- 40

―――――

―――――

423449461474500

48.954.056.659.465.0

43.245.747.048.350.9

4.985.505.786.056.63

0.20~0.440.20~0.440.20~0.440.20~0.440.20~0.44

3.35 3.64 3.79 3.94 4.25

SS3- 42 SS3- 44 SS3- 45 SS3- 46 SS3- 48

―――――

―――――

525551577590602

70.977.183.686.990.3

53.656.258.860.161.4

7.237.868.528.869.21

0.20~0.440.20~0.440.20~0.440.20~0.440.20~0.44

3.72 4.38 4.61 4.81 4.94

SS3- 50 SS3- 52SS3- 54 SS3- 55 SS3- 56

―――――

―――――

628654680588599

97.3105112

99.9103

64.166.769.460.061.1

9.9210.711.410.210.5

0.20~0.440.20~0.440.20~0.440.20~0.440.20~0.44

5.10 4.60 5.76 5.99 6.13

SS3- 58 SS3- 60SS3- 62 SS3- 64SS3- 65

―――――

―――――

610632654675708

107114121129141

62.264.466.668.972.2

10.911.612.413.114.3

0.20~0.440.20~0.440.20~0.440.20~0.440.20~0.44

6.67 6.86 7.15 7.46 7.95

SS3- 66 SS3- 68SS3- 70 SS3- 72SS3- 75

―――――

―――――

719763872983

1200

145162208261386

73.377.889.0100123

14.816.521.226.639.4

0.20~0.440.20~0.440.26~0.520.26~0.520.26~0.52

8.20 6.92

10.6 9.36

15.7

SS3- 76 SS3- 80SS3- 90 SS3-100 SS3-120

Spur

G

ears

SS

Steel Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 194HB

Black oxide

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

70

SS Steel Spur Gears 4Module

Spur

G

ears

SS

■ Module 4

S2 ShapeS1 Shape

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Web thickness Web O.D.

AH7 B C D E F G (H) ( I )SS4-12SS4-13SS4-14SS4-15SS4-16

m4

1213141516

S1S1S1S1S1

2020202020

3538404550

4852566064

5660646872

4040404040

2020202020

6060606060

―――――

―――――

SS4-17SS4-18SS4-19SS4-20SS4-21

1718192021

S1S1S1S1S1

2020202020

5355606569

6872768084

7680848892

4040404040

2020202020

6060606060

―――――

―――――

SS4-22SS4-23SS4-24SS4-25SS4-26

2223242526

S1S1S1S1S1

2020202020

7377808487

889296

100104

96100104108112

4040404040

2020202020

6060606060

―――――

―――――

SS4-27SS4-28SS4-29SS4-30SS4-32

2728293032

S1S1S1S1S1

2020202022

909595

100100

108112116120128

116120124128136

4040404040

2020202016

6060606056

―――――

―――――

SS4-34SS4-35SS4-36SS4-38SS4-40

3435363840

S1S1S1S1S1

2222222225

100100100100100

136140144152160

144148152160168

4040404040

1616161616

5656565656

―――――

―――――

SS4-42SS4-44SS4-45SS4-46SS4-48

4244454648

S1S1S1S1S2

2525252525

100100100100100

168176180184192

176184188192200

4040404040

1616161616

5656565656

――――26

――――

150SS4-50SS4-52SS4-54SS4-55SS4-56

5052545556

S4S2S2S2S2

3030303030

100100100100100

200208216220224

208216224228232

4040404040

1616161616

5656565656

(12)26262626

(168)165175178182

SS4-58SS4-60SS4-62SS4-64SS4-65

5860626465

S2S4S2S2S2

3030303030

110110110110110

232240248256260

240248256264268

4040404040

1616161616

5656565656

26(12)201616

190(208)210214218

SS4-66SS4-68SS4-70SS4-80

66687080

S2S2S4S4

30303030

120120120120

264272280320

272280288328

40404040

16161616

56565656

1616

(12)(12)

220225

(248)(288)

71

NOTE 1: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 2: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Allowable torque(N・m) NOTE 1 Allowable torque(kgf・m) Backlash

(mm)NOTE 2

Weight(kg)

Catalog No.Bending strength Surface durability Bending strength Surface durability

163187211236262

7.629.22

10.912.814.7

16.619.121.624.126.7

0.780.941.111.301.50

0.18~0.380.18~0.380.18~0.380.18~0.380.18~0.38

0.57 0.70 0.82 0.99 1.17

SS4-12SS4-13SS4-14SS4-15SS4-16

288314341368395

16.919.221.724.327.1

29.432.034.837.540.3

1.721.962.212.482.76

0.18~0.380.18~0.380.18~0.380.18~0.380.20~0.44

1.34 1.50 1.72 1.95 2.18

SS4-17SS4-18SS4-19SS4-20SS4-21

423450478506534

30.133.236.439.943.3

43.145.948.851.654.5

3.063.383.724.074.42

0.20~0.440.20~0.440.20~0.440.20~0.440.20~0.44

2.42 2.67 2.91 3.19 3.45

SS4-22SS4-23SS4-24SS4-25SS4-26

563591620649707

46.950.654.558.767.4

57.460.363.266.272.1

4.785.165.565.986.87

0.20~0.440.20~0.440.20~0.440.20~0.440.20~0.44

3.73 4.06 4.28 4.64 4.86

SS4-27SS4-28SS4-29SS4-30SS4-32

766795825884943

76.781.686.797.3

109

78.181.184.190.196.2

7.828.328.849.92

11.1

0.20~0.440.20~0.440.20~0.440.20~0.440.20~0.44

5.38 5.65 5.93 6.52 7.08

SS4-34SS4-35SS4-36SS4-38SS4-40

1000106010901120

987

120133139146133

102108112115101

12.313.614.214.913.6

0.24~0.520.24~0.520.24~0.520.24~0.520.24~0.52

7.73 8.41 8.76 9.12 9.12

SS4-42SS4-44SS4-45SS4-46SS4-48

10401090114011601190

146158172179186

106111116119121

14.816.117.518.218.9

0.24~0.520.24~0.520.24~0.520.24~0.520.24~0.52

8.00 10.2 10.8 11.1 11.5

SS4-50SS4-52SS4-54SS4-55SS4-56

12401290134013901420

200215231248256

127132137142145

20.42223.625.226.1

0.24~0.520.24~0.520.24~0.520.24~0.520.24~0.52

12.5 10.7 13.1 13.4 13.7

SS4-58SS4-60SS4-62SS4-64SS4-65

1450150015501810

265282300400

148153158184

2728.830.640.8

0.24~0.520.24~0.520.24~0.520.24~0.52

14.7 15.5 13.6 16.3

SS4-66SS4-68SS4-70SS4-80

Spur

G

ears

SS

Steel Spur Gears

* FD has the die-forged finish.

S4 Shape

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 194HB

Black oxide

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

72

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Web thickness Web O.D.

AH7 B C D E F G (H) ( I )SS5-12SS5-13SS5-14SS5-15SS5-16

m5

1213141516

S1S1S1S1S1

2222222222

4650526065

6065707580

7075808590

5050505050

2525252525

7575757575

―――――

―――――

SS5-17SS5-18SS5-19SS5-20SS5-21

1718192021

S1S1S1S1S1

2222222225

6870768290

859095

100105

95100105110115

5050505050

2525252525

7575757575

―――――

―――――

SS5-22SS5-23SS5-24SS5-25SS5-26

2223242526

S1S1S1S1S1

2525252525

95100100105110

110115120125130

120125130135140

5050505050

2525252525

7575757575

―――――

―――――

SS5-27SS5-28SS5-29SS5-30SS5-32

2728293032

S1S1S1S1S1

2525252530

110110115120120

135140145150160

145150155160170

5050505050

2525252521

7575757571

―――――

―――――

SS5-34SS5-35SS5-36SS5-38SS5-40

3435363840

S1S1S1S1S2

3030303030

120120120120120

170175180190200

180185190200210

5050505050

2121212121

7171717171

――――36

――――

160SS5-42SS5-44SS5-45SS5-46SS5-48

4244454648

S2S2S2S2S2

3030303030

120120120120120

210220225230240

220230235240250

5050505050

2121212121

7171717171

3636363030

170175185185200

SS5-50SS5-52SS5-54SS5-55SS5-56

5052545556

S4S2S2S2S2

3030303030

120130130130130

250260270275280

260270280285290

5050505050

2121212121

7171717171

(16)30303030

(212)220230235240

SS5-58SS5-60

5860

S2S4

3030

130130

290300

300310

5050

2121

7171

30(20)

240(260)

SS Steel Spur Gears 5Module

Spur

G

ears

SS

■ Module 5

S2 ShapeS1 Shape

73

NOTE 1: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 2: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Allowable torque(N・m) NOTE 1 Allowable torque(kgf・m) Backlash

(mm)NOTE 2

Weight(kg)

Catalog No.Bending strength Surface durability Bending strength Surface durability

318365413462512

15.218.421.825.529.5

32.437.242.147.152.2

1.551.882.222.603.01

0.20~0.440.20~0.440.20~0.440.20~0.440.20~0.44

1.21 1.46 1.70 2.07 2.40

SS5-12SS5-13SS5-14SS5-15SS5-16

562614666718772

33.838.443.448.654.2

57.362.667.973.378.7

3.453.924.424.965.53

0.20~0.440.20~0.440.20~0.440.20~0.440.24~0.50

2.72 3.03 3.45 3.90 4.36

SS5-17SS5-18SS5-19SS5-20SS5-21

825879934989

1040

60.166.373.080.087.1

84.189.795.2

101106

6.136.777.458.168.88

0.24~0.500.24~0.500.24~0.500.24~0.500.24~0.50

4.83 5.33 5.69 6.23 6.79

SS5-22SS5-23SS5-24SS5-25SS5-26

11001160121012701380

94.4102110118136

112118124129141

9.6210.411.212.113.8

0.24~0.500.24~0.500.24~0.500.24~0.500.24~0.50

7.19 7.62 8.23 8.87 9.36

SS5-27SS5-28SS5-29SS5-30SS5-32

15001550161017301540

154164174195182

153158164176157

15.716.717.819.918.5

0.24~0.500.24~0.500.24~0.500.24~0.500.24~0.50

10.4 10.9 11.5 12.6 13.2

SS5-34SS5-35SS5-36SS5-38SS5-40

16301730178018301930

202223234246269

167177182187197

20.622.823.925.127.5

0.28~0.580.28~0.580.28~0.580.28~0.580.28~0.58

14.2 15.4 15.8 16.2 17.0

SS5-42SS5-44SS5-45SS5-46SS5-48

20302130222022702320

294320347361375

207217227232237

30.032.635.436.838.3

0.28~0.580.28~0.580.28~0.580.28~0.580.28~0.58

15.0 19.8 20.9 21.5 22.0

SS5-50SS5-52SS5-54SS5-55SS5-56

24202520

405435

247257

41.344.4

0.28~0.580.28~0.58

23.8 21.4

SS5-58SS5-60

Spur

G

ears

SS

Steel Spur Gears

* FD has the die-forged finish.

S4 Shape

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 194HB

Black oxide

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

74

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Web thickness Web O.D.

AH7 B C D E F G H ISS6-12SS6-13SS6-14SS6-15SS6-16

m6

1213141516

S1S1S1S1S1

2525252525

5558607075

7278849096

849096

102108

6060606060

2828282828

8888888888

―――――

―――――

SS6-17SS6-18SS6-19SS6-20SS6-21

1718192021

S1S1S1S1S1

2525252528

788090

100105

102108114120126

114120126132138

6060606060

2828282828

8888888888

―――――

―――――

SS6-22SS6-23SS6-24SS6-25SS6-26

2223242526

S1S1S1S1S1

2828282828

110115120125130

132138144150156

144150156162168

6060606060

2828282828

8888888888

―――――

―――――

SS6-27SS6-28SS6-30SS6-32SS6-34

2728303234

S1S1S1S1S1

2828303030

135140150150150

162168180192204

174180192204216

6060606060

2828282323

8888888383

―――――

―――――

SS6-35SS6-36SS6-38SS6-40SS6-42

3536384042

S1S1S1S1S1

3030303040

150150150150150

210216228240252

222228240252264

6060606060

2323232323

8383838383

―――――

―――――

SS6-44SS6-45SS6-46SS6-48SS6-50

4445464850

S1S1S1S1S1

4040404040

150180180180180

264270276288300

276282288300312

6060606060

2323232323

8383838383

―――――

―――――

SS8-12SS8-13SS8-14SS8-15SS8-16

m8

1213141516

S1S1S1S1S1

2828282828

75808590

100

96104112120128

112120128136144

7575757575

3535353535

110110110110110

―――――

―――――

SS8-17SS8-18SS8-19SS8-20SS8-21

1718192021

S1S1S1S1S1

2828282830

105110120130140

136144152160168

152160168176184

7575757575

3535353535

110110110110110

―――――

―――――

SS8-22SS8-23SS8-24SS8-25SS8-26

2223242526

S1S1S1S1S1

3030303030

150155160170170

176184192200208

192200208216224

7575757575

3535353535

110110110110110

―――――

―――――

SS8-27SS8-28SS8-30

272830

S1S1S1

303030

170180180

216224240

232240256

757575

353535

110110110

―――

―――

SS10-15SS10-20SS10-25

m10152025

S1S1S1

303040

115165200

150200250

170220270

909090

404040

130130130

―――

―――

SS Steel Spur Gears 6~10Modules

Spur

G

ears

SS

■ Module 6, 8, 10S1 Shape

75

NOTE 1: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 2 : The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 194HB

Black oxide

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

Allowable torque(N・m) NOTE 1 Allowable torque(kgf・m) Backlash

(mm)NOTE 2

Weight(kg)

Catalog No.Bending strength Surface durability Bending strength Surface durability

550631713798884

26.832.438.444.952

56.164.372.881.490.2

2.733.313.924.585.3

0.22~0.480.22~0.480.22~0.480.22~0.480.22~0.48

2.10 2.49 2.89 3.50 4.04

SS6-12SS6-13SS6-14SS6-15SS6-16

9721060115012401330

59.667.776.485.995.9

99.1108117127136

6.076.97.798.759.78

0.22~0.480.22~0.480.22~0.480.22~0.480.26~0.56

4.56 5.08 5.87 6.71 7.35

SS6-17SS6-18SS6-19SS6-20SS6-21

14301520161017101800

107118129142154

145155165174184

10.91213.214.515.7

0.26~0.560.26~0.560.26~0.560.26~0.560.26~0.56

8.11 8.90 9.73

10.6 11.5

SS6-22SS6-23SS6-24SS6-25SS6-26

19002000219019902150

167181209200228

194204223203220

1718.421.320.423.2

0.26~0.560.26~0.560.26~0.560.26~0.560.26~0.56

12.4 13.4 15.4 16.4 18.1

SS6-27SS6-28SS6-30SS6-32SS6-34

22402320249026502820

242258289323359

228237254271288

24.726.329.53336.6

0.26~0.560.26~0.560.26~0.560.26~0.560.30~0.64

19.0 20.0 22.0 24.0 25.9

SS6-35SS6-36SS6-38SS6-40SS6-42

29903080316033303500

397416436478522

305314322340357

40.542.544.548.853.2

0.30~0.640.30~0.640.30~0.640.30~0.640.30~0.64

28.2 30.7 32.0 34.5 37.1

SS6-44SS6-45SS6-46SS6-48SS6-50

12201400159017701970

62.675.288.9

104121

125143162181200

6.397.669.06

10.612.3

0.28~0.580.28~0.580.28~0.580.28~0.580.28~0.58

4.94 5.85 6.83 7.87 9.20

SS8-12SS8-13SS8-14SS8-15SS8-16

21602360256027602960

139158178200223

220240261281302

14.116.118.220.422.8

0.28~0.580.28~0.580.28~0.580.28~0.580.32~0.66

10.4 11.7 13.3 15.0 16.7

SS8-17SS8-18SS8-19SS8-20SS8-21

31703380299031603340

248273250273297

323344305323341

25.327.925.527.830.3

0.32~0.660.32~0.660.32~0.660.32~0.660.32~0.66

18.6 20.2 22.0 24.1 25.6

SS8-22SS8-23SS8-24SS8-25SS8-26

352037004060

322348404

359377414

32.835.541.2

0.32~0.660.32~0.660.32~0.66

27.2 29.6 33.0

SS8-27SS8-28SS8-30

333043105930

203323529

339440605

20.73354

0.34~0.680.34~0.680.36~0.76

15.0 28.2 43.3

SS10-15SS10-20SS10-25

Spur

G

ears

SS

Steel Spur Gears

76

NOTE 1: Please design the maximum bore so that the tooth strength is less than the strength of remaining material.

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Web thickness Web O.D.

AH7 NOTE 1 B C D E H ISSA1-20SSA1-24SSA1-25SSA1-28SSA1-30

m1

2024252830

S5S5S5S5S5

88888

―――――

2024252830

2226273032

1010101010

―――――

―――――

SSA1-32SSA1-35SSA1-36SSA1-40SSA1-45

3235364045

S5S5S5S5S5

88888

―――――

3235364045

3437384247

1010101010

―――――

―――――

SSA1-48SSA1-50SSA1-55SSA1-56SSA1-60

4850555660

S5S5S5S5S5

810101010

―――――

4850555660

5052575862

1010101010

―――――

―――――

SSA1-70SSA1-80SSA1-100SSA1-120

7080

100120

S5S5S5S5

10101010

――――

7080

100120

7282

102122

10101010

――――

――――

SSA1.5-20SSA1.5-24SSA1.5-25SSA1.5-28SSA1.5-30

m1.5

2024252830

S5S5S5S5S5

1010101010

―――――

303637.54245

333940.54548

1515151515

―――――

―――――

SSA1.5-32SSA1.5-35SSA1.5-36SSA1.5-40SSA1.5-45

3235364045

S5S5S5S5S5

1010101515

―――――

4852.5546067.5

5155.5576370.5

1515151515

―――――

―――――

SSA1.5-48SSA1.5-50SSA1.5-55SSA1.5-56SSA1.5-60

4850555660

S5S5S5S5S5

1515151515

―――――

727582.58490

757885.58793

1515151515

―――――

―――――

SSA1.5-70SSA1.5-80SSA1.5-100

7080

100

S5S5S6

151515

――70

105120150

108123153

151515

――9

――

125

SSA Steel Hubless Spur Gears 1~1.5Modules

Spur

G

ears

SSA

■ Module 1

S5 Shape

■ Module 1.5

S6 Shape

77

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 194HB

Black oxide

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash

(mm) NOTE 3

Weight(kg)

Catalog No.Bending strength Surface durability Bending strength Surface durability

5.757.477.919.24

10.1

0.330.490.540.680.79

0.590.760.810.941.03

0.0330.0500.0550.0700.081

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.0210.032 0.035 0.044 0.052

SSA1-20SSA1-24SSA1-25SSA1-28SSA1-30

11.112.412.914.717.1

0.901.091.161.451.86

1.131.271.311.501.74

0.0920.110.120.150.19

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.059 0.072 0.076 0.095 0.12

SSA1-32SSA1-35SSA1-36SSA1-40SSA1-45

18.519.521.822.324.2

2.132.322.832.943.40

1.891.982.232.282.47

0.220.240.290.300.35

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.14 0.15 0.18 0.19 0.22

SSA1-48SSA1-50SSA1-55SSA1-56SSA1-60

29.133.943.753.5

4.706.239.97

14.7

2.963.464.455.45

0.480.631.021.50

0.08~0.180.08~0.180.08~0.180.08~0.18

0.30 0.39 0.61 0.88

SSA1-70SSA1-80SSA1-100SSA1-120

19.425.226.731.234.2

1.151.731.902.412.79

1.982.572.723.183.49

0.120.180.190.250.28

0.10~0.220.12~0.260.12~0.260.12~0.260.12~0.26

0.074 0.11 0.12 0.15 0.18

SSA1.5-20SSA1.5-24SSA1.5-25SSA1.5-28SSA1.5-30

37.341.943.549.857.7

3.193.854.095.106.53

3.804.284.435.075.88

0.330.390.420.520.67

0.12~0.260.12~0.260.12~0.260.12~0.260.14~0.32

0.20 0.25 0.26 0.31 0.40

SSA1.5-32SSA1.5-35SSA1.5-36SSA1.5-40SSA1.5-45

62.465.773.775.381.8

7.478.159.96

10.412.0

6.376.697.517.688.34

0.760.831.021.061.22

0.14~0.320.14~0.320.14~0.320.14~0.320.14~0.32

0.46 0.50 0.61 0.63 0.73

SSA1.5-48SSA1.5-50SSA1.5-55SSA1.5-56SSA1.5-60

98.0114147

16.622.035.5

10.011.715.0

1.692.243.62

0.14~0.320.14~0.320.18~0.38

1.00 1.31 1.72

SSA1.5-70SSA1.5-80SSA1.5-100

Spur

G

ears

SSA

Steel, Hubless Spur Gears

78

NOTE 1: Please design the maximum bore so that the tooth strength is less than the strength of remaining material.

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Web thickness Web O.D.

AH7 B C D E H ISSA2-20SSA2-24SSA2-25SSA2-28SSA2-30

m2

2024252830

S5S5S5S5S5

1212121515

―――――

4048505660

4452546064

2020202020

―――――

―――――

SSA2-32SSA2-35SSA2-36SSA2-40SSA2-45

3235364045

S5S5S5S5S5

1515151818

―――――

6470728090

6874768494

2020202020

―――――

―――――

SSA2-48SSA2-50SSA2-55SSA2-56SSA2-60

4850555660

S5S5S5S5S5

1818181818

―――――

96100110112120

100104114116124

2020202020

―――――

―――――

SSA2-70SSA2-80SSA2-100

7080

100

S5S6S6

181818

―7090

140160200

144164204

202020

―1212

―136176

SSA2.5-20SSA2.5-24SSA2.5-25SSA2.5-28SSA2.5-30

m2.5

2024252830

S5S5S5S5S5

1515151818

―――――

506062.57075

556567.57580

2525252525

―――――

―――――

SSA2.5-32SSA2.5-35SSA2.5-36SSA2.5-40SSA2.5-45

3235364045

S5S5S5S5S5

1818182222

―――――

8087.590

100112.5

8592.595

105117.5

2525252525

―――――

―――――

SSA2.5-48SSA2.5-50SSA2.5-55SSA2.5-56SSA2.5-60

4850555660

S5S5S5S5S6

2222222222

――――70

120125137.5140150

125130142.5145155

2525252525

――――15

――――

121

SSA2.5-70SSA2.5-80

7080

S6S6

2222

8090

175200

180205

2525

1515

146171

SSA Steel Hubless Spur Gears 2~2.5Modules

Spur

G

ears

SSA

■ Module 2

S5 Shape S6 Shape

■ Module 2.5

79

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Allowable torque(N・m) Allowable torque(kgf・m) Backlash

(mm)Weight(kg)

Catalog No.Bending strength Surface durability Bending strength Surface durability

46.059.863.373.981.1

2.834.244.645.896.80

4.696.096.457.548.27

0.290.430.470.600.69

0.12~0.260.14~0.300.14~0.300.14~0.300.14~0.30

0.18 0.27 0.29 0.36 0.42

SSA2-20SSA2-24SSA2-25SSA2-28SSA2-30

88.499.3

103118137

7.789.399.96

12.516.0

9.0110.110.512.013.9

0.790.961.021.271.63

0.14~0.300.14~0.300.14~0.300.14~0.300.18~0.36

0.48 0.58 0.61 0.75 0.96

SSA2-32SSA2-35SSA2-36SSA2-40SSA2-45

148156175179194

18.319.924.425.329.3

15.115.917.818.219.8

1.872.032.482.582.99

0.18~0.360.18~0.360.18~0.360.18~0.360.18~0.36

1.10 1.19 1.45 1.51 1.74

SSA2-48SSA2-50SSA2-55SSA2-56SSA2-60

232271291

40.854.372.7

23.727.729.7

4.165.537.42

0.18~0.360.18~0.360.20~0.44

2.38 2.55 3.90

SSA2-70SSA2-80SSA2-100

89.8117124144159

5.668.479.26

11.713.6

9.1611.912.614.716.2

0.580.860.941.201.39

0.14~0.280.16~0.340.16~0.340.16~0.340.16~0.34

0.35 0.52 0.57 0.71 0.82

SSA2.5-20SSA2.5-24SSA2.5-25SSA2.5-28SSA2.5-30

173194201230267

15.618.820.024.931.9

17.619.820.523.527.2

1.591.922.042.543.26

0.16~0.340.16~0.340.16~0.340.16~0.340.18~0.40

0.94 1.13 1.20 1.47 1.88

SSA2.5-32SSA2.5-35SSA2.5-36SSA2.5-40SSA2.5-45

289304341349379

36.740.049.151.059.1

29.531.034.835.638.6

3.744.085.015.206.03

0.18~0.400.18~0.400.18~0.400.18~0.400.18~0.40

2.14 2.33 2.84 2.95 2.93

SSA2.5-48SSA2.5-50SSA2.5-55SSA2.5-56SSA2.5-60

454441

82.190.9

46.345.0

8.379.27

0.18~0.400.18~0.40

3.89 4.99

SSA2.5-70SSA2.5-80

Spur

G

ears

SSA

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 194HB

Black oxide

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

Steel, Hubless Spur Gears

80

NOTE 1: Please design the maximum bore so that the tooth strength is less than the strength of remaining material.

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Web thickness Web O.D.

AH7 B C D E H ISSA3-20SSA3-24SSA3-25SSA3-28SSA3-30

m3

2024252830

S5S5S5S5S5

1515152020

―――――

6072758490

6678819096

3030303030

―――――

―――――

SSA3-32SSA3-35SSA3-36SSA3-40SSA3-45

3235364045

S5S5S5S5S5

2020202525

―――――

96105108120135

102111114126141

3030303030

―――――

―――――

SSA3-48SSA3-50SSA3-55SSA3-56SSA3-60

4850555660

S5S6S6S6S6

2525252525

―70808090

144150165168180

150156171174186

3030303030

―18181818

―116131134146

SSA3-70SSA3-80

7080

S6S6

2525

9090

210240

216246

3030

1818

176205

SSA4-20SSA4-24SSA4-25SSA4-28SSA4-30

m4

2024252830

S5S5S5S5S5

2020202525

―――――

8096

100112120

88104108120128

4040404040

―――――

―――――

SSA4-32SSA4-35SSA4-36SSA4-40SSA4-45

3235364045

S5S5S5S6S6

2525253030

―――80

100

128140144160180

136148152168188

4040404040

―――2626

―――

118138

SSA4-48SSA4-50SSA4-55SSA4-56SSA4-60

4850555660

S6S6S6S6S6

3030303030

100100110110120

192200220224240

200208228232248

4040404040

2626262626

150158178182198

SSA5-20SSA5-24SSA5-25SSA5-28SSA5-30

m5

2024252830

S5S5S5S5S5

2222222525

―――――

100120125140150

110130135150160

5050505050

―――――

―――――

SSA5-32SSA5-35SSA5-36SSA5-40SSA5-45

3235364045

S5S5S5S6S6

2525253030

―――

100120

160175180200225

170185190210235

5050505050

―――3636

―――

160185

SSA5-48SSA5-50

4850

S6S6

3030

120130

240250

250260

5050

3636

200210

SSA Steel Hubless Spur Gears 3~5Modules

Spur

G

ears

SSA

■ Module 3, 4 ,5S5 Shape S6 Shape

81

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Allowable torque(N・m) Allowable torque(kgf・m) Backlash

(mm)Weight(kg)

Catalog No.Bending strength Surface durability Bending strength Surface durability

155202214250274

9.9514.916.320.724.0

15.820.621.825.427.9

1.021.521.662.112.44

0.14~0.320.18~0.380.18~0.380.18~0.380.18~0.38

0.62 0.92 1.00 1.23 1.42

SSA3-20SSA3-24SSA3-25SSA3-28SSA3-30

298335348398461

27.433.135.244.056.6

30.434.235.540.647

2.803.383.594.495.78

0.18~0.380.18~0.380.18~0.380.18~0.380.20~0.44

1.63 1.97 2.08 2.55 3.26

SSA3-32SSA3-35SSA3-36SSA3-40SSA3-45

500525590602654

65.070.986.990.3

105

50.953.660.161.466.7

6.637.238.869.21

10.7

0.20~0.440.20~0.440.20~0.440.20~0.440.20~0.44

3.72 3.60 4.34 4.47 5.14

SSA3-48SSA3-50SSA3-55SSA3-56SSA3-60

654763

121162

66.677.8

12.416.5

0.20~0.440.20~0.44

6.64 8.37

SSA3-70SSA3-80

368478506591649

24.336.439.950.658.7

37.548.851.660.366.2

2.483.724.075.165.98

0.18~0.380.20~0.440.20~0.440.20~0.440.20~0.44

1.48 2.17 2.37 2.94 3.40

SSA4-20SSA4-24SSA4-25SSA4-28SSA4-30

707795825943

1090

67.481.686.7

109139

72.181.184.196.2

112

6.878.328.84

11.114.2

0.20~0.440.20~0.440.20~0.440.20~0.440.24~0.52

3.89 4.68 4.96 5.70 7.29

SSA4-32SSA4-35SSA4-36SSA4-40SSA4-45

9871040116011901290

133146179186215

101106119121132

13.614.818.218.922.0

0.24~0.520.24~0.520.24~0.520.24~0.520.24~0.52

8.12 8.70

10.4 10.7 12.3

SSA4-48SSA4-50SSA4-55SSA4-56SSA4-60

718934989

11601270

48.673.080.0

102118

73.395.2

101118129

4.967.458.16

10.412.1

0.20~0.440.24~0.500.24~0.500.24~0.500.24~0.50

2.93 4.29 4.67 5.85 6.74

SSA5-20SSA5-24SSA5-25SSA5-28SSA5-30

13801550161015401780

136164174182234

141158164157182

13.816.717.818.523.9

0.24~0.500.24~0.500.24~0.500.24~0.500.28~0.58

7.70 9.25 9.80

11.1 14.0

SSA5-32SSA5-35SSA5-36SSA5-40SSA5-45

19302030

269294

197207

27.530.0

0.28~0.580.28~0.58

15.7 17.1

SSA5-48SSA5-50

Spur

G

ears

SSA

Steel, Hubless Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 194HB

Black oxide

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

SSY0.8-20 SSY0.8-25 SSY0.8-30 SSY0.8-40 SSY0.8-50

0.80.80.80.80.8

SSY1- 12 SSY1- 14 SSY1- 15 SSY1- 16 SSY1- 18SSY1- 20 SSY1- 24 SSY1- 25 SSY1- 28 SSY1- 30SSY1- 32 SSY1- 35 SSY1- 36 SSY1- 40 SSY1- 45SSY1- 48 SSY1- 50 SSY1- 55 SSY1- 56 SSY1- 60SSY1- 64 SSY1- 65 SSY1- 70 SSY1- 72 SSY1- 75SSY1- 80 SSY1- 85 SSY1- 90 SSY1- 95 SSY1- 96SSY1-100 SSY1-110 SSY1-120

111111111111111111111111111111111

012014015 016 018020024025028 030032035036040 045048050055056060064065070072075080085090 095 096100110120

05 05 06060606 06 06060606 0606080808 08080808080808080810 10 10101010 1010

09 1112 13 1416 1616 162525 2525 282828 282828 3535 353535354040404040505050

012014 015 016 018020024025028 030032035036040 045048050055056060064065070072075080085090 095096100110120

014016 017 018 020022026 027030 032034037038042 047050052 057058062066067072074 077082087092097098102112122

666666666666666666666666666666666

888888888888888888888888888888888

141414141414141414141414141414141414141414141414141414141414141414

—————

—————

—————

—————

—————

—————

———

—————

—————

—————

—————

—————

—————

———

2025304050

5 5 555

13.5 17.020.025.025.0

1620243240

17.621.625.633.641.6

44444

88888

1212121212

—————

—————

82

CAUTION: The gears with wider face widths such as SS and SSA series can be used as the mating gears to these.NOTE 1: Due to the thin face width, if you wish to perform secondary operations on these gears, please use care to avoid side run out and deformation. If you heat treat them, there is the possibility of warping these gears.

S1 Shape

SSY Steel Thin Face Spur Gears 0.8~1Modules

Spur

G

ears

SSY

■ Module 0.8

Catalog

No.

Module

z

No. of teeth

AH7 B C

Bore Pitch dia.Hub dia.

D E

Outside dia. Face width NOTE 1

F G H I

Hub width Total length Web thickness Web O.D.

m

■ Module 1

S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1S1

01.527 01.982 02.216 02.457 02.94603.448 04.482 04.744 05.54506.08406.629 07.453 07.730 08.844 10.25011.100 11.670 13.100 13.390 14.53015.690 15.970 17.430 18.000 18.88020.340 21.800 23.260 24.72025.02026.190 29.140 32.080

0.0686 0.0961 0.1118 0.1275 0.16180.2010 0.2952 0.3217 0.4089 0.47370.5423 0.6551 0.6963 0.8698 1.11501.2770 1.3920 1.6990 1.7650 2.04002.3360 2.4120 2.8170 2.9890 3.25903.7350 4.2460 4.7900 5.3690 5.48905.9810 7.30908.7990

(0.1557) (0.2021) (0.2260) (0.2505) (0.3004) (0.3516) (0.4570) (0.4838) (0.5654) (0.6204) (0.6760) (0.7600) (0.7882) (0.9018) (1.0450) (1.1320) (1.1900) (1.3360) (1.3650) (1.4820) (1.6000) (1.6290) (1.7770) (1.8360) (1.9250) (2.0740) (2.2230) (2.3720) (2.5210) (2.5510)

(2.6710) (2.9710) (3.2710)

(0.0070) (0.0098) (0.0114) (0.0130) (0.0165) (0.0205) (0.0301) (0.0328) (0.0417) (0.0483) (0.0553) (0.0668) (0.0710) (0.0887) (0.1137) (0.1302) (0.1419) (0.1733) (0.1800) (0.2080) (0.2382) (0.2460) (0.2873) (0.3048) (0.3323) (0.3809) (0.4330) (0.4885) (0.5475) (0.5597)

(0.6099) (0.7453) (0.8973)

0.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.180.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.180.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.180.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.180.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.180.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.180.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.18

0.01 0.01 0.01 0.02 0.020.02 0.03 0.03 0.04 0.060.06 0.07 0.08 0.09 0.110.12 0.13 0.14 0.15 0.190.21 0.21 0.24 0.25 0.260.31 0.34 0.370.400.410.48 0.56 0.65

SSY1- 12 SSY1- 14 SSY1- 15 SSY1- 16 SSY1- 18SSY1- 20 SSY1- 24 SSY1- 25 SSY1- 28SSY1- 30SSY1- 32 SSY1- 35 SSY1- 36 SSY1- 40 SSY1- 45SSY1- 48SSY1- 50SSY1- 55 SSY1- 56SSY1- 60SSY1- 64 SSY1- 65 SSY1- 70 SSY1- 72 SSY1- 75SSY1- 80SSY1- 85SSY1- 90 SSY1- 95SSY1- 96SSY1-100SSY1-110SSY1-120

S1S1S1S1S1

1.4712.0252.5963.7744.980

0.0850.1340.1970.3620.580

(0.150) (0.207) (0.265) (0.385) (0.508)

(0.0087) (0.0137) (0.0201) (0.0369) (0.0591)

0 ~ 0.10 0 ~ 0.10 0 ~ 0.10 0 ~ 0.10 0 ~ 0.10

0.0140.0230.0320.0540.068

SSY0.8-20 SSY0.8-25 SSY0.8-30 SSY0.8-40SSY0.8-50

83

*The blue catalog numbers indicate the new products.NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions.

Please see page 27 for more details. NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Spur

G

ears

SSY

Steel, Thin Face Spur Gears

Catalog

No.Backlash (mm)

NOTE 3Shape

Bending strength Surface durability Bending strength Surface durability

Allowable torque (kgf.m) Weight

(kgf)

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 194HB

Black oxide

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

Allowable torque (N.m) NOTE 2

SSY1.25- 12 SSY1.25- 14 SSY1.25- 15 SSY1.25- 16 SSY1.25- 18SSY1.25- 20 SSY1.25- 24 SSY1.25- 25 SSY1.25- 28 SSY1.25- 30SSY1.25- 32 SSY1.25- 35 SSY1.25- 36 SSY1.25- 40 SSY1.25- 45SSY1.25- 48 SSY1.25- 50 SSY1.25- 55 SSY1.25- 56 SSY1.25- 60SSY1.25- 64 SSY1.25- 65 SSY1.25- 70 SSY1.25- 72 SSY1.25- 75SSY1.25- 80 SSY1.25- 85 SSY1.25- 90 SSY1.25- 95 SSY1.25- 96SSY1.25-100

1.251.251.251.251.25

1.251.251.251.251.251.251.251.251.251.251.251.251.251.251.251.25

012014 015 016018020024 025 028030032035036 040 045048050055056060064 065 070072 075080085090095 096100

05 05 06 06 0608 08 08 08 10101010101010121212 12121215 1515151515151515

111315 16 1820 2424283030 3636404040 45 45 45 5050 50555555606065656565

015.00017.50018.75020.00022.50025.00 030.00 031.25 035.00037.50040.00043.75 045.00050.00056.25060.00 062.50 068.75 070.00075.00080.00 081.25 087.50090.00 093.75100.00106.25 112.50 118.75 120.00125.00

017.50 020.00 021.25 022.50025.00027.50 032.50 033.75037.50040.00042.50046.25 047.50 052.50 058.75062.50065.00071.25072.50 077.50082.50 083.75 090.00 092.50 096.25102.50108.75115.00121.25122.50127.50

8888888888888888888888888888888

10101010101010101010101010101010101010101010101010101010101010

18181818181818181818181818181818181818181818181818181818181818

—————

—————

—————

—————

—————

—————

—————

—————

—————

—————

—————

—————

84

NOTE 1: Due to the thin face width, if you wish to perform secondary operations on these gears, please use care to avoid side run out and deformation. If you heat treat them, there is the possibility of warping these gears.

S1 Shape

1.251.251.251.251.251.251.251.251.251.25

SSY Steel Thin Face Spur Gears 1.25Module

Spur

G

ears

SSY

■ Module 1.25

Catalog

No.

Module

z

No. of teeth

AH7 B C

Bore Pitch dia.Hub dia.

D E

Outside dia. Face width NOTE 1

F G H I

Hub width Total length Web thickness Web O.D.

m

Steel, Thin Face Spur Gears

S1S1S1S1S1S1S1S1S1S1S1S1 S1 S1S1S1 S1S1S1S1S1 S1S1 S1S1S1S1S1S1S1S1

03.181 04.129 04.618 05.117 06.13707.183 09.337 09.885 11.550 12.68013.810 15.520 16.100 18.430 21.36023.120 24.310 27.290 27.890 30.28032.690 33.290 36.300 37.520 39.33042.370 45.410 48.460 51.510 52.12054.570

00.1442 00.2010 00.2334 00.2687 00.343200.4295 00.6315 00.6884 00.8738 01.011001.1590 01.4000 01.4870 01.8550 02.376002.7200 02.9640 03.6170 03.7560 04.345004.9810 05.1460 06.0180 06.3870 06.962007.9750 09.0590 10.2200 11.4700 11.730012.8100

(0.3244)(0.4210)(0.4709)(0.5218)(0.6258)

(2.3580)(2.4790)(2.7830)(2.8440)(3.0880)(3.3330)(3.3395)(3.7020)(3.8260)(4.0110)(4.3210)(4.6310)(4.9420)(5.2530)(5.3150)

(5.5650)

(0.0147) (0.0205) (0.0238) (0.0274) (0.0350) (0.0438) (0.0644) (0.0702) (0.0891) (0.1031)

(0.1182) (0.1428) (0.1516) (0.1892) (0.2423) (0.2774) (0.3022) (0.3688) (0.3830) (0.4431)

(0.5079) (0.5248) (0.6137) (0.6513) (0.7099) (0.8132) (0.9238) (1.0420) (1.1700) (1.1960)

(1.3060)

0.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.18 0.08 ~ 0.180.08 ~ 0.18 0.12 ~ 0.22 0.12 ~ 0.22 0.12 ~ 0.22 0.12 ~ 0.220.12 ~ 0.22 0.12 ~ 0.22 0.12 ~ 0.22 0.12 ~ 0.22 0.12 ~ 0.260.12 ~ 0.26 0.12 ~ 0.26 0.12 ~ 0.26 0.12 ~ 0.26 0.12 ~ 0.260.12 ~ 0.26 0.12 ~ 0.26 0.12 ~ 0.26 0.12 ~ 0.26 0.12 ~ 0.260.12 ~ 0.26 0.16 ~ 0.32 0.16 ~ 0.32 0.16 ~ 0.32 0.16 ~ 0.32 0.16 ~ 0.32

0.02 0.02 0.03 0.03 0.040.05 0.07 0.08 0.100.11 0.12 0.16 0.17 0.21 0.240.26 0.30 0.34 0.35 0.420.45 0.46 0.54 0.56 0.590.69 0.75 0.86 0.93 0.941.00

SSY1.25- 12 SSY1.25- 14 SSY1.25- 15 SSY1.25- 16 SSY1.25- 18SSY1.25- 20 SSY1.25- 24 SSY1.25- 25 SSY1.25- 28 SSY1.25- 30SSY1.25- 32SSY1.25- 35 SSY1.25- 36 SSY1.25- 40 SSY1.25- 45SSY1.25- 48 SSY1.25- 50 SSY1.25- 55 SSY1.25- 56 SSY1.25- 60SSY1.25- 64 SSY1.25- 65 SSY1.25- 70 SSY1.25- 72 SSY1.25- 75SSY1.25- 80 SSY1.25- 85 SSY1.25- 90 SSY1.25- 95 SSY1.25- 96SSY1.25-100

85

NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

(0.7325)(0.9521)(1.0080)(1.1780)(1.2930)

(1.4080)(1.5830)(1.6420)(1.8790)(2.1780)

Spur

G

ears

SSY

Catalog

No.Backlash (mm)

NOTE 3Shape

Bending strength Surface durability Bending strength Surface durability

Allowable torque (kgf.m) Weight

(kgf)Allowable torque (N.m) NOTE 2

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 194HB

Black oxide

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

86

NOTE 1: Due to the thin face width, if you wish to perform secondary operations on these gears, please use care to avoid side run out and deformation. If you heat treat them, there is the possibility of warping these gears.NOTE 2: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

S5 Shape

Catalog No. Module No. of teeth ShapeBore Pitch dia. Outside dia. Face width NOTE 1 Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m)AH7 C D E Bending strength Surface durability Bending strength Surface durability

SSAY1-20SSAY1-24SSAY1-25SSAY1-28SSAY1-30

m1

2024252830

S5S5S5S5S5

66666

2024252830

2226273032

66666

3.45 4.48 4.74 5.55 6.08

0.20 0.30 0.32 0.41 0.47

0.35 0.46 0.48 0.57 0.62

0.021 0.030 0.033 0.042 0.048

SSAY1-32SSAY1-35SSAY1-36SSAY1-40SSAY1-45

3235364045

S5S5S5S5S5

66666

3235364045

3437384247

66666

6.63 7.45 7.73 8.84

10.3

0.54 0.66 0.70 0.87 1.12

0.68 0.76 0.79 0.90 1.05

0.055 0.067 0.071 0.089 0.11

SSAY1-48SSAY1-50SSAY1-55SSAY1-56SSAY1-60

4850555660

S5S5S5S5S5

68888

4850555660

5052575862

66666

11.1 11.7 13.1 13.4 14.5

1.28 1.39 1.70 1.77 2.04

1.13 1.19 1.34 1.37 1.48

0.13 0.14 0.17 0.18 0.21

SSAY1-70SSAY1-80SSAY1-100

7080

100

S5S5S5

81010

7080

100

7282

102

666

17.4 20.3 26.2

2.82 3.74 5.98

1.78 2.07 2.67

0.29 0.38 0.61

SSAY1.25-20 SSAY1.25-24 SSAY1.25-25 SSAY1.25-28 SSAY1.25-30

m1.25

2024252830

S5S5S5S5S5

8888

10

25 30 31.2535 37.5

27.532.5 33.75 37.5 40

88888

7.1839.3379.885

11.5512.68

0.4295 0.6315 0.6884 0.8738 1.011

0.7325 0.9521 1.008 1.178 1.293

0.0438 0.0644 0.0702 0.0891 0.1031

SSAY1.25-32 SSAY1.25-35 SSAY1.25-36 SSAY1.25-40 SSAY1.25-45

3235364045

S5S5S5S5S5

1010101010

40 43.75 45 50 56.25

42.5 46.25 47.5 52.5 58.75

88888

13.8115.5216.118.43 21.36

1.1591.4001.4871.8552.376

1.408 1.583 1.642 1.879 2.178

0.11820.14280.15160.18920.2423

SSAY1.25-48 SSAY1.25-50 SSAY1.25-55 SSAY1.25-56 SSAY1.25-60

4850555660

S5S5S5S5S5

1012121212

60 62.50 68.75 70 75

62.5 65 71.25 72.577.5

88888

23.1224.31 27.29 27.89 30.28

2.72 2.964 3.6173.7564.345

2.3582.479 2.783 2.844 3.088

0.2774 0.3022 0.3688 0.3830 0.4431

SSAY1.25-70 SSAY1.25-80 SSAY1.25-100

7080

100

S5S5S5

151515

87.5 100125

90102.5127.5

888

36.3 42.37 54.57

6.018 7.975

12.81

3.702 4.321 5.565

0.6137 0.8132 1.3060

SSAY Steel, Hubless, Thin Face Spur Gears 1~1.25Modules

Spur

G

ears

SSAY

■ Module 1

■ Module 1.25

Steel, Hubless, Thin Face Spur Gears

87

NOTE 3 : The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Backlash

(mm)NOTE 3

Weight(kg)

Catalog No.

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.013 0.020 0.022 0.028 0.032

SSAY1-20SSAY1-24SSAY1-25SSAY1-28SSAY1-30

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.037 0.044 0.047 0.058 0.074

SSAY1-32SSAY1-35SSAY1-36SSAY1-40SSAY1-45

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.084 0.090 0.11 0.11 0.13

SSAY1-48SSAY1-50SSAY1-55SSAY1-56SSAY1-60

0.08~0.180.08~0.180.08~0.18

0.18 0.23 0.37

SSAY1-70SSAY1-80SSAY1-100

0.08~0.180.10~0.220.10~0.220.10~0.220.10~0.22

0.03 0.04 0.05 0.06 0.06

SSAY1.25-20SSAY1.25-24SSAY1.25-25SSAY1.25-28SSAY1.25-30

0.10~0.220.10~0.220.10~0.220.10~0.220.12~0.26

0.07 0.09 0.1 0.12 0.15

SSAY1.25-32SSAY1.25-35SSAY1.25-36SSAY1.25-40SSAY1.25-45

0.12~0.260.12~0.260.12~0.260.12~0.260.12~0.26

0.17 0.19 0.23 0.23 0.27

SSAY1.25-48SSAY1.25-50SSAY1.25-55SSAY1.25-56SSAY1.25-60

0.12~0.260.12~0.260.16~0.32

0.37 0.48 0.76

SSAY1.25-70SSAY1.25-80SSAY1.25-100

Spur

G

ears

SSAY

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 194HB

Black oxide

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

New Products

88

S5 Shape

CAUTION: It is not possible to perform secondary operations on the bore or the area around the clamp. NOTE 1: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 27 for more details.

Screw

Catalog No. Module No. of teeth ShapeBore Pitch dia. Outside dia. Face width Threaded hole Allowable torque(N・m) NOTE 1

AH7 C D E Thread size J Bending strength Surface durability

SSAY0.8-28/K6

m0.8

28 S5 6 22.4 24 6 M5 6.3 3.55 0.26SSAY0.8-30/K6 /K8

30 S568

2424

25.6 6 M56.37.3

3.89 0.30

SSAY0.8-32/K6 /K8

32 S568

25.6 27.2 6 M56.37.3

4.24 0.34

SSAY0.8-35/K6 /K8

35 S568

2828

29.6 6 M56.37.3

4.77 0.41

SSAY0.8-36/K6 /K8

36 S568

28.828.8

30.4 6 M56.37.3

4.95 0.43

SSAY0.8-40/K6 /K8 /K10

40 S568

10

323232

33.6 6 M56.37.38.3

5.66 0.54

SSAY0.8-45/K6 /K8 /K10

45 S568

10

363636

37.6 6 M56.37.38.3

6.56 0.70

SSAY0.8-48/K6 /K8 /K10

48 S568

10

38.438.438.4

40 6 M56.37.38.3

7.11 0.80

SSAY0.8-50/K6 /K8 /K10

50 S568

10

404040

41.6 6 M56.37.38.3

7.47 0.87

SSAY0.8-55/K6 /K8 /K10

55 S568

10

444444

45.6 6 M56.37.38.3

8.39 1.06

SSAY0.8-56/K6 /K8 /K10

56 S568

10

44.844.844.8

46.4 6 M56.37.38.3

8.57 1.10

SSAY0.8-60/K6 /K8 /K10

60 S568

10

484848

49.6 6 M56.37.38.3

9.30 1.28

SSAY/K Spur Gears with Built-In Clamps 0.8Module

Spur

G

ears

SSAY

■ Module 0.8

Crescent ShapedPressure Wedge

Shaft

Hexagonal Socket Head Screw

■ Application Hints

Allowable torque(kgf・m) Reference slipping torque(N・m) NOTE 2 Backlash(mm) NOTE 3

Weight(kg)

Catalog No.Bending strength Surface durability Screw fastening torque Ref. slipping torque

0.36 0.026 2.8 2.4 0 ~0.10 0.017 SSAY0.8-28/K6

0.40 0.030 2.82.43.7

0 ~0.100.020 0.019

SSAY0.8-30/K6 /K8

0.43 0.035 2.82.43.7

0 ~0.100.023 0.022

SSAY0.8-32/K6 /K8

0.49 0.042 2.82.43.7

0 ~0.100.028 0.027

SSAY0.8-35/K6 /K8

0.50 0.044 2.82.43.7

0 ~0.100.029 0.028

SSAY0.8-36/K6 /K8

0.58 0.055 2.82.43.73.9

0 ~0.100.036 0.035 0.034

SSAY0.8-40/K6 /K8 /K10

0.67 0.071 2.82.43.73.9

0 ~0.100.046 0.045 0.044

SSAY0.8-45/K6 /K8 /K10

0.72 0.081 2.82.43.73.9

0 ~0.100.053 0.052 0.051

SSAY0.8-48/K6 /K8 /K10

0.76 0.089 2.82.43.73.9

0 ~0.100.058 0.057 0.055

SSAY0.8-50/K6 /K8 /K10

0.86 0.11 2.82.43.73.9

0 ~0.100.070 0.069 0.068

SSAY0.8-55/K6 /K8 /K10

0.87 0.11 2.82.43.73.9

0 ~0.100.073 0.072 0.070

SSAY0.8-56/K6 /K8 /K10

0.95 0.13 2.82.43.73.9

0 ~0.100.084 0.083 0.081

SSAY0.8-60/K6 /K8 /K10

Cut

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Catalog No. Module No. of teeth ShapeBore Pitch dia. Outside dia. Face width Threaded hole Allowable torque(N・m)AH7 C D E Thread size J Bending strength Surface durability

SSAY1-24/K6

m1

24 S5 6 24 26 6 M5 6.3 4.48 0.30 SSAY1-25/K6 /K8

25 S568

25 27 6 M56.37.3

4.74 0.32

SSAY1-28/K6 /K8 /K10

28 S568

1028 30 6 M5

6.37.38.3

5.55 0.41

SSAY1-30/K6 /K8 /K10

30 S568

1030 32 6 M5

6.37.38.3

6.08 0.47

SSAY1-32/K6 /K8 /K10

32 S568

1032 34 6 M5

6.37.38.3

6.63 0.54

SSAY1-35/K6 /K8 /K10

35 S568

1035 37 6 M5

6.37.38.3

7.45 0.66

SSAY1-36/K6 /K8 /K10

36 S568

1036 38 6 M5

6.37.38.3

7.73 0.70

SSAY1-40/K6 /K8 /K10

40 S568

1040 42 6 M5

6.37.38.3

8.84 0.87

SSAY1-45/K6 /K8 /K10

45 S568

1045 47 6 M5

6.37.38.3

10.3 1.12

SSAY1-48/K6 /K8 /K10

48 S568

1048 50 6 M5

6.37.38.3

11.1 1.28

SSAY1-50/K8 /K10 /K12

50 S58

1012

50 52 6M5M5M6

7.38.39.9

11.7 1.39

SSAY1-55/K8 /K10 /K12

55 S58

1012

55 57 6M5M5M6

7.38.39.9

13.1 1.70

SSAY1-56/K8 /K10 /K12

56 S58

1012

56 58 6M5M5M6

7.38.39.9

13.4 1.77

SSAY1-60/K8 /K10 /K12

60 S58

1012

60 62 6M5M5M6

7.38.39.9

14.5 2.04

91

NOTE 2: The slipping torques shown was experimentally obtained by attaching the gears to shafts with g6 tolerance and 0.4a surface finish. The clamping area was wiped with a cloth to remove excess oil. NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

K-Clamp uses a “crescent” shaped piece, optimum for the size of the shaft, as a pressure wedge to secure the gear on the shaft.

*The gear grade listed is the value before clamping.

*The sizes and shapes of the K-clamps are standardized for various bore sizes.

1. The slipping torque is affected by the fits and clamping surface conditions. Remove as much lubricant as possible, and use the same size shaft as the bore with h7 or better tolerances.

2. K-clamp gears are suitable for relatively small gears in light loads with the bore size ranging between 6 and 12 mm. The gear will slip on the shaft when the actual load exceeds the slipping torque. The use of a key in addition to the K-clamp is recommended for heavier loads or large bores sizes. This modification must be done at the KHK factory.

■ How does it work?

■ Application Hints

Crescent ShapedPressure Wedge

Shaft

Hexagonal Socket Head Screw

Allowable torque(kgf・m) Reference slipping torque(N・m) Backlash(mm)

Weight(kg)

Catalog No.Bending strength Surface durability Screw fastening torque Ref. slipping torque

0.46 0.030 2.8 2.4 0.08~0.18 0.020 SSAY1-24/K6

0.48 0.033 2.82.8

2.43.7

0.08~0.180.022 0.021

SSAY1-25/K6 /K8

0.57 0.042 2.82.82.8

2.43.73.9

0.08~0.180.028 0.027 0.025

SSAY1-28/K6 /K8 /K10

0.62 0.048 2.82.82.8

2.43.73.9

0.08~0.180.032 0.031 0.029

SSAY1-30/K6 /K8 /K10

0.68 0.055 2.82.82.8

2.43.73.9

0.08~0.180.036 0.035 0.034

SSAY1-32/K6 /K8 /K10

0.76 0.067 2.82.82.8

2.43.73.9

0.08~0.180.044 0.043 0.041

SSAY1-35/K6 /K8 /K10

0.79 0.071 2.82.82.8

2.43.73.9

0.08~0.180.046 0.045 0.044

SSAY1-36/K6 /K8 /K10

0.90 0.089 2.82.82.8

2.43.73.9

0.08~0.180.058 0.057 0.055

SSAY1-40/K6 /K8 /K10

1.05 0.11 2.82.82.8

2.43.73.9

0.08~0.180.073 0.072 0.071

SSAY1-45/K6 /K8 /K10

1.13 0.13 2.82.82.8

2.43.73.9

0.08~0.180.084 0.083 0.081

SSAY1-48/K6 /K8 /K10

1.19 0.14 2.82.84

3.73.96.6

0.08~0.180.090 0.089 0.087

SSAY1-50/K8 /K10 /K12

1.34 0.17 2.82.84

3.73.96.6

0.08~0.180.110.110.11

SSAY1-55/K8 /K10 /K12

1.37 0.18 2.82.84

3.73.96.6

0.08~0.180.110.110.11

SSAY1-56/K8 /K10 /K12

1.48 0.21 2.82.84

3.73.96.6

0.08~0.180.130.130.13

SSAY1-60/K8 /K10 /K12

Spur

G

ears

SSAY

Spur Gears with Built-In Clamps

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

S45C

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 194HB

Black oxide

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Cannot modify bore or clamping area

92

■ Module 0.5, 0.8

CAUTION: Although the sintering process allows for the inclusion of oil to maintain lubricity, these gears have not been oil impregnated.CAUTION: The rust prevention process involves treating the gears with steam (in effect, creating surface oxidation). A black oxide treatment cannot be done on these gears. CAUTION: Gears with wider face widths such as SS and SSA series can be used as the mating gears to these.NOTE 1: The bore1 is machined to minus tolerance so that the gear can simply be pressed onto the shaft. You can also open up the bore.

Characteristics of Sintered Steel Spur Gears1. The cost is minimized due to the elimination of machining costs and a reduction in wasted material.2. High precision for sintered products (JIS N8 Class). Has high reliability for maintaining its precision. 3. Oil-impregnated sintering creates interconnecting pores in which lubricating oil is stored for long, trouble-free operations.

S3 Shape

S1 Shape

Catalog No. Module No. of teeth ShapeBore 1 Bore 2 Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Web thickness

A -0.005-0.020 A' ± 0.1 B C D E F G H

LS0.5-12LS0.5-16LS0.5-20LS0.5-25LS0.5-30

m0.5

1216202530

S3S3S3S1S1

22333

2.12.13.13.13.1

7.49.4

11.48.59

68

1012.515

79

1113.516

44433

33444

77877

―――――

LS0.5-40LS0.5-50LS0.5-60LS0.5-70LS0.5-80

4050607080

S9S9S9S9S9

34444

3.14.14.14.14.1

912121212

2025303540

2126313641

33333

45555

78888

1.51.51.51.51.5

LS0.8-12LS0.8-16LS0.8-20LS0.8-25LS0.8-30

m0.8

1216202530

S3S1S1S1S1

33334

3.13.13.13.14.1

11.6899

12

9.612.8162024

11.214.417.621.625.6

54444

44445

98889

―――――

LS0.8-40LS0.8-50LS0.8-60LS0.8-70LS0.8-80

4050607080

S9S9S9S9S9

44455

4.14.14.15.15.1

1212121515

3240485664

33.641.649.657.665.6

44444

55566

999

1010

22222

LS Sintered Metal Spur Gears 0.5~0.8Modules

Spur

G

ears

LS

93

NOTE 2: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 27 for more details.NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

S9 Shape

Web O.D. Allowable torque(N・m) Allowable torque(kgf・m) Backlash(mm)

Weight(kg)

Catalog No.I Bending strength Surface durability Bending strength Surface durability

―――――

0.140.230.320.330.42

0.00780.0150.0230.0270.040

0.0140.0230.0320.0330.043

0.00080.00150.00240.00280.0040

0.06~0.160.06~0.160.06~0.160.10~0.200.10~0.20

22445

LS0.5-12LS0.5-16LS0.5-20LS0.5-25LS0.5-30

16.521.526.531.536.5

0.610.811.001.201.41

0.0720.110.170.230.31

0.0620.0820.100.120.14

0.00730.0120.0170.0240.032

0.10~0.200.12~0.240.12~0.240.12~0.240.12~0.24

610141620

LS0.5-40LS0.5-50LS0.5-60LS0.5-70LS0.5-80

―――――

0.450.580.811.121.43

0.0260.0380.0600.0950.14

0.0460.0590.0830.110.15

0.00270.00390.00610.00970.014

0.06~0.160.06~0.160.06~0.160.10~0.200.10~0.20

446

1016

LS0.8-12LS0.8-16LS0.8-20LS0.8-25LS0.8-30

26.434.442.450.458.4

2.092.753.434.114.80

0.260.410.600.841.11

0.210.280.350.420.49

0.0260.0420.0620.0850.11

0.10~0.200.12~0.240.12~0.240.12~0.240.12~0.24

2026364860

LS0.8-40LS0.8-50LS0.8-60LS0.8-70LS0.8-80

Spur

G

ears

LS

Sintered Metal Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

SMF5040 (Equivalent to S45C)

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

70~95HRB

-

Sintered

Bore

JIS N8 grade (JIB B1702-1: 1998)

Datum reference surface for tooth forming

Possible

■ Module 1, 1.5

94

S1 ShapeS3 Shape

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length

AH7 B C D E F GSUS1-15SUS1-16SUS1-18SUS1-20SUS1-22

m1

1516182022

S3S3S3S1S1

88888

1718201618

1516182022

1718202224

1010101010

2020201010

3030302020

SUS1-24SUS1-25SUS1-28SUS1-30SUS1-32

2425283032

S1S1S1S1S1

88888

2020232526

2425283032

2627303234

1010101010

1010101010

2020202020

SUS1-35SUS1-36SUS1-40SUS1-42SUS1-45

3536404245

S1S1S1S1S1

88

101010

2628353535

3536404245

3738424447

1010101010

1010101010

2020202020

SUS1-48SUS1-50SUS1-55SUS1-56SUS1-60

4850555660

S1S1S1S1S1

1010101010

3535404040

4850555660

5052575862

1010101010

1010101010

2020202020

SUS1-64SUS1-70SUS1-75SUS1-80SUS1-90

6470758090

S1S1S1S1S1

1010101010

4550556060

6470758090

6672778292

1010101010

1010101010

2020202020

SUS1-100SUS1-120

100120

S1S1

1212

6060

100120

102122

1010

1010

2020

SUS1.5-15SUS1.5-16SUS1.5-18SUS1.5-20SUS1.5-22

m1.5

1516182022

S1S1S1S1S1

88888

1820222426

22.524273033

25.527303336

1515151515

1414141414

2929292929

SUS1.5-24SUS1.5-25SUS1.5-28SUS1.5-30SUS1.5-32

2425283032

S1S1S1S1S1

88

101010

2830363840

3637.5424548

3940.5454851

1515151515

1414141414

2929292929

SUS1.5-35SUS1.5-36SUS1.5-40SUS1.5-42SUS1.5-45

3536404245

S1S1S1S1S1

1010121212

4245454545

52.554606367.5

55.557636670.5

1515151515

1414141414

2929292929

SUS1.5-48SUS1.5-50SUS1.5-55SUS1.5-56SUS1.5-60

4850555660

S1S1S1S1S1

1212121215

4550555560

727582.58490

757885.58793

1515151515

1414141414

2929292929

SUS1.5-64SUS1.5-70SUS1.5-75SUS1.5-80SUS1.5-90

6470758090

S1S1S1S1S1

1515151515

6070708080

96105112.5120135

99108115.5123138

1515151515

1414141414

2929292929

SUS1.5-100 100 S1 15 80 150 153 15 14 29

SUS Stainless Steel Spur Gears 1~1.5Modules

Spur

G

ears

SUS

95

NOTE 1: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details.

NOTE 2: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

*Available on special order: Same gears made in SUS304

Allowable torque(N・m) Allowable torque(kgf・m) Backlash(mm)

Weight(kg)

Catalog No.Bending strength Surface durability Bending strength Surface durability

2.042.262.713.183.65

0.120.140.180.230.29

0.210.230.280.320.37

0.0130.0150.0190.0240.029

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.040.040.060.040.04

SUS1-15SUS1-16SUS1-18SUS1-20SUS1-22

4.134.375.115.66.11

0.350.380.480.560.64

0.420.450.520.570.62

0.0360.0390.0490.0570.066

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.060.060.070.090.10

SUS1-24SUS1-25SUS1-28SUS1-30SUS1-32

6.877.128.158.669.44

0.780.821.031.141.32

0.700.730.830.880.96

0.0790.0840.110.120.13

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.110.120.160.170.19

SUS1-35SUS1-36SUS1-40SUS1-42SUS1-45

10.210.812.112.313.4

1.511.652.012.092.42

1.041.101.231.261.37

0.150.170.210.210.25

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.210.220.280.280.31

SUS1-48SUS1-50SUS1-55SUS1-56SUS1-60

14.516.117.418.721.4

2.773.343.864.425.67

1.471.641.771.912.19

0.280.340.390.450.58

0.08~0.180.08~0.180.08~0.180.08~0.180.08~0.18

0.370.470.530.600.72

SUS1-64SUS1-70SUS1-75SUS1-80SUS1-90

24.129.6

7.0810.4

2.463.01

0.721.06

0.08~0.180.08~0.18

0.821.10

SUS1-100SUS1-120

6.897.639.16

10.712.3

0.430.500.650.821.01

0.700.780.931.091.26

0.0440.0510.0660.0840.10

0.10~0.220.10~0.220.10~0.220.10~0.220.12~0.26

0.060.080.100.120.15

SUS1.5-15SUS1.5-16SUS1.5-18SUS1.5-20SUS1.5-22

13.914.817.218.920.6

1.231.351.711.982.27

1.421.501.761.932.10

0.130.140.170.200.23

0.12~0.260.12~0.260.12~0.260.12~0.260.12~0.26

0.180.190.260.290.33

SUS1.5-24SUS1.5-25SUS1.5-28SUS1.5-30SUS1.5-32

23.224.027.529.231.9

2.742.913.624.014.64

2.362.452.802.983.25

0.280.300.370.410.47

0.12~0.260.12~0.260.12~0.260.14~0.320.14~0.32

0.390.420.480.560.57

SUS1.5-35SUS1.5-36SUS1.5-40SUS1.5-42SUS1.5-45

34.536.340.741.645.2

5.315.797.087.368.51

3.523.704.154.244.61

0.540.590.720.750.87

0.14~0.320.14~0.320.14~0.320.14~0.320.14~0.32

0.630.710.870.901.00

SUS1.5-48SUS1.5-50SUS1.5-55SUS1.5-56SUS1.5-60

48.854.258.763.272.3

9.7511.813.615.620.1

4.975.525.996.457.37

0.991.201.391.592.05

0.14~0.320.14~0.320.14~0.320.14~0.320.18~0.38

1.101.401.601.802.20

SUS1.5-64SUS1.5-70SUS1.5-75SUS1.5-80SUS1.5-90

81.4 25.2 8.30 2.57 0.18~0.38 2.60 SUS1.5-100

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

SUS303

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 187HB

-

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

Spur

G

ears

SUS

Stainless Steel Spur Gears

■ Module 2, 2.5

96

S5 ShapeS1 Shape

SUS.SUSA Stainless Steel Spur Gears 2~2.5Modules

Spur

Gea

rs

SUS.SUSA

Spur

G

ears

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length

AH7 B C D E F GSUS2-15SUS2-16SUS2-18SUS2-20SUS2-22 m2

1516182022

S1S1S1S1S1

1212121212

2426303236

3032364044

3436404448

2020202020

1616161616

3636363636

SUS2-24SUS2-25SUS2-28SUS2-30

24252830

S1S1S1S1

12121212

38404550

48505660

52546064

20202020

16161616

36363636

SUSA2-32SUSA2-35SUSA2-36SUSA2-40SUSA2-42

m2

3235364042

S5S5S5S5S5

1515151515

―――――

6470728084

6874768488

2020202020

―――――

―――――

SUSA2-45SUSA2-48SUSA2-50SUSA2-55SUSA2-56

4548505556

S5S5S5S5S5

1515151515

―――――

9096

100110112

94100104114116

2020202020

―――――

―――――

SUSA2-60SUSA2-64SUSA2-70

606470

S5S5S5

151515

―――

120128140

124132144

202020

―――

―――

SUS2.5-15SUS2.5-16SUS2.5-18SUS2.5-20SUS2.5-22 m2.5

1516182022

S1S1S1S1S1

1515151515

3032384044

37.540455055

42.545505560

2525252525

1818181818

4343434343

SUS2.5-24SUS2.5-25SUS2.5-28SUS2.5-30

24252830

S1S1S1S1

15151515

48506065

6062.57075

6567.57580

25252525

18181818

43434343

SUSA2.5-32SUSA2.5-35SUSA2.5-36SUSA2.5-40SUSA2.5-42

m2.5

3235364042

S5S5S5S5S5

1515152020

―――――

8087.590

100105

8592.595

105110

2525252525

―――――

―――――

SUSA2.5-45SUSA2.5-48SUSA2.5-50SUSA2.5-55SUSA2.5-56

4548505556

S5S5S5S5S5

2020202020

―――――

112.5120125137.5140

117.5125130142.5145

2525252525

―――――

―――――

SUSA2.5-60SUSA2.5-64

6064

S5S5

2020

――

150160

155165

2525

――

――

97

NOTE 1: The allowable torques shown in the table are calculated values according to the assumed usage conditions. Please see page 27 for more details. NOTE 2: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Allowable torque(N・m) NOTE 1 Allowable torque(kgf・m) Backlash(mm) NOTE 2

Weight(kg)

Catalog No.Bending strength Surface durability Bending strength Surface durability

16.318.121.725.429.2

1.051.221.592.012.48

1.671.852.212.592.98

0.110.120.160.200.25

0.12~0.260.12~0.260.12~0.260.12~0.260.14~0.30

0.140.160.220.270.34

SUS2-15SUS2-16SUS2-18SUS2-20SUS2-22

33.035.040.944.8

3.013.304.184.83

3.373.574.174.57

0.310.340.430.49

0.14~0.300.14~0.300.14~0.300.14~0.30

0.390.430.560.66

SUS2-24SUS2-25SUS2-28SUS2-30

48.954.957.065.269.3

5.536.677.088.859.81

4.985.605.816.657.07

0.560.680.720.901.00

0.14~0.300.14~0.300.14~0.300.14~0.300.18~0.36

0.480.580.610.780.85

SUSA2-32SUSA2-35SUSA2-36SUSA2-40SUSA2-42

75.581.886.096.598.7

11.413.014.217.318.0

7.708.348.779.84

10.1

1.161.331.441.771.83

0.18~0.360.18~0.360.18~0.360.18~0.360.18~0.36

0.971.101.201.501.50

SUSA2-45SUSA2-48SUSA2-50SUSA2-55SUSA2-56

107116128

20.823.929.0

10.911.813.1

2.132.442.96

0.18~0.360.18~0.360.18~0.36

1.702.002.40

SUSA2-60SUSA2-64SUSA2-70

31.935.342.449.657.0

2.112.443.184.024.96

3.253.64.325.065.81

0.210.250.320.410.51

0.14~0.280.14~0.280.14~0.280.14~0.280.16~0.34

0.260.300.410.500.63

SUS2.5-15SUS2.5-16SUS2.5-18SUS2.5-20SUS2.5-22

64.568.379.887.6

6.016.588.349.65

6.586.968.148.93

0.610.670.850.98

0.16~0.340.16~0.340.16~0.340.16~0.34

0.750.821.101.30

SUS2.5-24SUS2.5-25SUS2.5-28SUS2.5-30

95.4107111127135

11.113.414.217.719.6

9.7310.911.313.013.8

1.131.361.451.812.00

0.16~0.340.16~0.340.16~0.340.16~0.340.18~0.40

0.951.101.201.501.70

SUSA2.5-32SUSA2.5-35SUSA2.5-36SUSA2.5-40SUSA2.5-42

148160168189193

22.726.128.434.936.2

15.016.317.119.219.6

2.312.662.903.563.70

0.18~0.400.18~0.400.18~0.400.18~0.400.18~0.40

1.902.202.302.903.00

SUSA2.5-45SUSA2.5-48SUSA2.5-50SUSA2.5-55SUSA2.5-56

209226

42.048.2

21.323.0

4.284.91

0.18~0.400.18~0.40

3.403.90

SUSA2.5-60SUSA2.5-64

Spur

G

ears

SUS.SUSA

Stainless Steel Spur Gears

*Available on special order: Same gears made in SUS304

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

SUS303

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 187HB

-

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

■ Module 3, 4

98

S5 ShapeS1 Shape

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length

AH7 B C D E F GSUS3-15SUS3-16SUS3-18SUS3-20SUS3-22

m3

1516182022

S1S1S1S1S1

1515151515

3638405054

4548546066

5154606672

3030303030

2020202020

5050505050

SUS3-24SUS3-25SUS3-28SUS3-30

24252830

S1S1S1S1

15202020

58607075

72758490

78819096

30303030

20202020

50505050

SUSA3-32SUSA3-35SUSA3-36SUSA3-40SUSA3-42

3235364042

S5S5S5S5S5

2020202525

―――――

96105108120126

102111114126132

3030303030

―――――

―――――

SUSA3-45SUSA3-48SUSA3-50SUSA3-55SUSA3-56

4548505556

S5S5S5S5S5

2525252525

―――――

135144150165168

141150156171174

3030303030

―――――

―――――

SUSA3-60 60 S5 25 ― 180 186 30 ― ―SUS4-15SUS4-20SUS4-25SUS4-30 m4

15202530

S1S1S1S1

20202020

456584

100

6080

100120

6888

108128

40404040

25252525

65656565

SUSA4-40SUSA4-50

4050

S5S5

3030

――

160200

168208

4040

――

――

SUS.SUSA Stainless Steel Spur Gears 3~4Modules

Spur

G

ears

SUS.SUSA

99

*The blue catalog numbers indicate the new products.NOTE 1: The allowable torques shown in the table are calculated values according to the assumed usage conditions.

Please see page 27 for more details. NOTE 2: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Allowable torque(N・m) NOTE 1 Allowable torque(kgf・m) Backlash(mm) NOTE 2

Weight(kg)

Catalog No.Bending strength Surface durability Bending strength Surface durability

55.161.173.385.898.5

3.714.295.597.078.73

5.626.237.478.74

10.0

0.380.440.570.720.89

0.14~0.320.14~0.320.14~0.320.14~0.320.18~0.38

0.470.540.670.971.10

SUS3-15SUS3-16SUS3-18SUS3-20SUS3-22

111118138151

10.611.614.717.0

11.412.014.115.4

1.081.181.501.74

0.18~0.380.18~0.380.18~0.380.18~0.38

1.301.401.802.10

SUS3-24SUS3-25SUS3-28SUS3-30

165185192220234

19.523.625.031.334.7

16.818.919.622.423.9

1.992.402.553.193.54

0.18~0.380.18~0.380.18~0.380.18~0.380.20~0.44

1.602.002.102.502.90

SUSA3-32SUSA3-35SUSA3-36SUSA3-40SUSA3-42

255276290326333

40.246.250.461.764.1

26.028.229.633.233.9

4.104.715.146.306.54

0.20~0.440.20~0.440.20~0.440.20~0.440.20~0.44

3.303.804.005.005.20

SUSA3-45SUSA3-48SUSA3-50SUSA3-55SUSA3-56

362 74.3 36.9 7.58 0.20~0.44 5.90 SUSA3-60

131203280359

9.0617.328.341.7

13.320.728.536.6

0.921.762.894.25

0.18~0.380.18~0.380.20~0.440.20~0.44

1.102.103.405.00

SUS4-15SUS4-20SUS4-25SUS4-30

521573

77.1103

53.258.5

7.8610.5

0.20~0.440.24~0.52

6.209.70

SUSA4-40SUSA4-50

Spur

G

ears

SUS.SUSA

Stainless Steel Spur Gears

*Available on special order: Same gears made in SUS304

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

SUS303

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 187HB

-

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

■ Module 0.5

100

■ Fastening torque vs. Slip torque

The slip torque which is dependent on the fastening torque can sometimes be less than the gear strength. Please use caution in selecting. The chart on the right shows the relationship between the slip torque and the fastening torque.

Fastening torque of clamping screw (N.m)

Bore (mm)

Fastening torque vs. Slip torque

Slip

torq

ue (

N. m

)

Screw

NOTE 1: The bore cannot be modified. It is possible to pin the gear to the shaft to prevent slippage.

S1 Shape

*Data supplied by Designatronics Inc.

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Cap screw dimensions

AH7 NOTE 1 B C D E F G M J KSUSL0.5-16SUSL0.5-18SUSL0.5-20SUSL0.5-24SUSL0.5-25

m0.5

1618202425

S3S3S3S3S3

44455

1414141414

89

101212.5

910111313.5

77777

88888

2222222222

M2.5M2.5M2.5M2.5M2.5

3.33.33.33.33.3

4.44.44.44.44.4

SUSL0.5-28SUSL0.5-30SUSL0.5-32SUSL0.5-36SUSL0.5-40

2830323640

S3S3S3S3S1

55666

1414171717

1415161820

1516171921

77555

88

101010

2222151515

M2.5M2.5M3M3M3

3.33.34.54.54.5

4.44.45.35.35.3

SUSL0.5-45SUSL0.5-48SUSL0.5-50SUSL0.5-54SUSL0.5-56

4548 505456

S1S1S1S1S1

66666

1717171717

22.524252728

23.525262829

55555

1010101010

1515151515

M3M3M3M3M3

4.54.54.54.54.5

5.35.35.35.35.3

SUSL0.5-60SUSL0.5-64SUSL0.5-70SUSL0.5-72SUSL0.5-75

6064707275

S1S1S1S1S1

88888

1717171717

3032353637.5

3133363738.5

55555

1010101010

1515151515

M3M3M3M3M3

4.54.54.54.54.5

66666

SUSL0.5-80SUSL0.5-90SUSL0.5-96SUSL0.5-100SUSL0.5-112

809096

100112

S1S1S1S1S1

1010101010

2424242424

4045485056

4146495157

55555

1414141414

1919191919

M4M4M4M4M4

5.35.34.94.94.9

7.77.7888

SUSL0.5-120 120 S1 10 24 60 61 5 14 19 M4 4.9 8

SUSL Stainless Steel Fairloc Hub Spur Gears 0.5Module

Spur

G

ears

SUSL

101

NOTE 2: The allowable torques shown in the table are calculated values to the assumed usage conditions. Please see page 27 for more details. NOTE 3: Do not tighten the clamping screw without inserting a shaft, or the bore will be permanently deformed and will not accept a shaft.NOTE 4: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Screw

S3 Shape

Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Recommended fastening torque NOTE 3 Backlash(mm) NOTE 4

Weight(kg)

Catalog No.Bending strength Surface durability Bending strength Surface durability (N・m) (kgf・m)

0.400.470.560.720.76

0.0230.030.0380.0560.061

0.040.0480.0570.0740.078

0.00230.00310.00390.00570.0062

0.600.600.600.600.60

0.0610.0610.0610.0610.061

0~0.100~0.100~0.100~0.100~0.10

0.020.020.020.020.02

SUSL0.5-16SUSL0.5-18SUSL0.5-20SUSL0.5-24SUSL0.5-25

0.890.980.760.891.02

0.0790.0910.0760.0960.12

0.0910.100.0780.0910.10

0.00800.00930.00770.00980.012

0.600.600.600.600.60

0.0610.0610.0610.0610.061

0~0.100~0.100~0.100~0.100~0.10

0.020.020.020.020.02

SUSL0.5-28SUSL0.5-30SUSL0.5-32SUSL0.5-36SUSL0.5-40

1.181.281.341.481.54

0.150.170.190.220.24

0.120.130.140.150.16

0.0160.0180.0190.0230.025

0.600.600.600.600.60

0.0610.0610.0610.0610.061

0~0.100~0.100~0.100~0.100~0.10

0.020.040.040.040.04

SUSL0.5-45SUSL0.5-48SUSL0.5-50SUSL0.5-54SUSL0.5-56

1.671.812.012.072.17

0.280.320.390.410.45

0.170.180.200.210.22

0.0290.0330.040.0420.046

0.800.800.800.800.80

0.0820.0820.0820.0820.082

0~0.100~0.100~0.100~0.100~0.10

0.040.040.040.060.06

SUSL0.5-60SUSL0.5-64SUSL0.5-70SUSL0.5-72SUSL0.5-75

2.342.682.883.023.42

0.510.660.760.821.05

0.240.270.290.310.35

0.0530.0670.0770.0840.11

0.800.800.800.800.80

0.0820.0820.0820.0820.082

0~0.100~0.100~0.100~0.100~0.10

0.080.080.100.100.12

SUSL0.5-80SUSL0.5-90SUSL0.5-96SUSL0.5-100SUSL0.5-112

3.69 1.21 0.38 0.12 0.80 0.082 0~0.10 0.14 SUSL0.5-120

Spur

G

ears

SUSL

Stainless Steel Fairloc Hub Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

SUS303

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 187HB

-

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Not Possible

■ Module 0.8

102

CAUTION: Gears with wider face widths such as SS and SSA series can be used as the mating gears to these.NOTE 1: The bore cannot be modified. It is possible to pin the gear to the shaft to prevent slippage.NOTE 2: The hub configurations are slightly different from the drawings shown above. But there is no difference in functionality.

Screw

S1 Shape

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Cap screw dimensions

AH7 NOTE 1 B C D E F G M J KSUSL0.8-14SUSL0.8-15SUSL0.8-16SUSL0.8-18SUSL0.8-20

m0.8

1415161820

S3S3S3S3S1

44444

1414141414

11.21212.814.416

12.813.614.41617.6

77775

88888

2222222213

M2.5M2.5M2.5M2.5M2.5

3.33.33.33.33.3

4.44.44.44.44.4

SUSL0.8-22SUSL0.8-24SUSL0.8-25SUSL0.8-28SUSL0.8-30

2224252830

S1S1S1S1S1

45555

1414141414

17.619.22022.424

19.220.821.62425.6

55555

88888

1313131313

M2.5M2.5M2.5M2.5M2.5

3.33.33.33.33.3

4.44.44.44.44.4

SUSL0.8-32SUSL0.8-36SUSL0.8-40SUSL0.8-45SUSL0.8-48

3236404548

S1S1S1S1S1

56666

1417171717

25.628.8323638.4

27.230.433.637.640

55555

810101010

1315151515

M2.5M3M3M3M3

3.34.54.54.54.5

4.45.35.35.35.3

SUSL0.8-50SUSL0.8-54SUSL0.8-56SUSL0.8-60SUSL0.8-64

5054566064

S1S1S1S1S1

66688

1717171717

4043.244.84851.2

41.644.846.449.652.8

55555

1010101010

1515151515

M3M3M3M3M3

4.54.54.54.54.5

5.35.35.366

SUSL0.8-72SUSL0.8-80SUSL0.8-90SUSL0.8-100

728090

100

S1S1S1S1

8101010

17242424

57.6647280

59.265.673.681.6

5555

10141414

15191919

M3M4M4M4

4.54.94.94.9

6888

SUSL1-14SUSL1-15SUSL1-16SUSL1-18SUSL1-20

m1

1415161820

S3S3S3S3S1

66666

1717171717

1415161820

1617182022

88886

1010101010

2525252516

M3M3M3M3M3

4.54.54.54.54.5

5.35.35.35.35.3

SUSL1-24SUSL1-25SUSL1-28SUSL1-30SUSL1-32

2425283032

S1S1S1S1S1

66688

1717171717

2425283032

2627303234

66666

1010101010

1616161616

M3M3M3M3M3

4.54.54.54.54.5

5.35.35.366

SUSL1-35SUSL1-36SUSL1-40SUSL1-45SUSL1-48

3536404548

S1S1S1S1S1

88888

1717171717

3536404548

3738424750

66666

1010101010

1616161616

M3M3M3M3M3

4.54.54.54.54.5

66666

SUSL1-50SUSL1-56SUSL1-60SUSL1-64SUSL1-70

5056606470

S1S1S1S1S1

1010101010

2424242424

5056606470

5258626672

66666

1414141414

2020202020

M4M4M4M4M4

4.94.94.94.94.9

88888

SUSL1-72SUSL1-80SUSL1-90SUSL1-100

728090

100

S1S1S1S1

10101010

24242424

728090

100

748292

102

6666

14141414

20202020

M4M4M4M4

4.94.94.94.9

8888

0.8~1Modules

Spur

G

ears

SUSL

SUSL Stainless Steel Fairloc Hub Spur Gears

103

NOTE 3: The allowable torques shown in the table are calculated values to the assumed usage conditions. Please see page 27 for more details. NOTE 4: Do not tighten the clamping screw without inserting a shaft, or the bore will be permanently deformed and will not accept a shaft.NOTE 5: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Screw

S3 Shape

Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Recommended fastening torque Backlash(mm) NOTE 4

Weight(kg)

Catalog No.Bending strength Surface durability Bending strength Surface durability (N・m) (kgf・m)

0.820.921.011.221.02

0.0480.0560.0650.0830.076

0.0830.0930.100.120.10

0.00490.00570.00660.00850.0077

0.600.600.600.600.60

0.0610.0610.0610.0610.061

0~0.100~0.100~0.100~0.100~0.10

0.020.020.020.020.02

SUSL0.8-14SUSL0.8-15SUSL0.8-16SUSL0.8-18SUSL0.8-20

1.171.321.401.631.79

0.0910.110.120.150.17

0.120.130.140.170.18

0.00930.0110.0120.0150.018

0.600.600.600.600.60

0.0610.0610.0610.0610.061

0~0.100~0.100~0.100~0.100~0.10

0.020.020.020.020.02

SUSL0.8-22SUSL0.8-24SUSL0.8-25SUSL0.8-28SUSL0.8-30

1.952.282.613.023.27

0.200.260.320.410.47

0.200.230.270.310.33

0.0200.0260.0330.0420.048

0.600.600.600.600.60

0.0610.0610.0610.0610.061

0~0.100~0.100~0.100~0.100~0.10

0.020.040.040.060.06

SUSL0.8-32SUSL0.8-36SUSL0.8-40SUSL0.8-45SUSL0.8-48

3.443.783.954.284.63

0.510.610.650.760.87

0.350.390.400.440.47

0.0530.0620.0670.0770.088

0.600.600.600.800.80

0.0610.0610.0610.0820.082

0~0.100~0.100~0.100~0.100~0.10

0.060.060.080.080.08

SUSL0.8-50SUSL0.8-54SUSL0.8-56SUSL0.8-60SUSL0.8-64

5.316.006.867.72

1.111.381.772.21

0.540.610.700.79

0.110.140.180.23

0.800.800.800.80

0.0820.0820.0820.082

0~0.100~0.100~0.100~0.10

0.100.160.200.22

SUSL0.8-72SUSL0.8-80SUSL0.8-90SUSL0.8-100

1.461.631.812.171.91

0.0880.100.120.150.14

0.150.170.180.220.19

0.00900.0100.0120.0160.015

0.600.600.600.600.60

0.0610.0610.0610.0610.061

0~0.100~0.100~0.100~0.100~0.10

0.040.040.040.040.02

SUSL1-14SUSL1-15SUSL1-16SUSL1-18SUSL1-20

2.482.623.063.363.66

0.210.230.290.340.39

0.250.270.310.340.37

0.0210.0230.0300.0340.039

0.600.600.600.800.80

0.0610.0610.0610.0820.082

0~0.100~0.100~0.100~0.100~0.10

0.040.040.040.040.04

SUSL1-24SUSL1-25SUSL1-28SUSL1-30SUSL1-32

4.124.274.895.676.14

0.470.490.620.790.91

0.420.440.500.580.63

0.0480.0500.0630.0810.093

0.800.800.800.800.80

0.0820.0820.0820.0820.082

0~0.100~0.100~0.100~0.100~0.10

0.060.060.060.080.10

SUSL1-35SUSL1-36SUSL1-40SUSL1-45SUSL1-48

6.457.408.038.679.63

0.991.251.451.662.00

0.660.750.820.880.98

0.100.130.150.170.20

0.800.800.800.800.80

0.0820.0820.0820.0820.082

0~0.100~0.100~0.100~0.100~0.10

0.120.140.160.180.20

SUSL1-50SUSL1-56SUSL1-60SUSL1-64SUSL1-70

9.9511.212.914.5

2.122.653.404.25

1.021.151.311.48

0.220.270.350.43

0.800.800.800.80

0.0820.0820.0820.082

0~0.100~0.100~0.100~0.10

0.220.260.320.38

SUSL1-72SUSL1-80SUSL1-90SUSL1-100

Spur

G

ears

SUSL

Stainless Steel Fairloc Hub Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

SUS303

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

Less than 187HB

-

Cut

Bore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Not Possible

104

■ Module 0.5

NOTE 1: The bore cannot be modified. It is possible to pin the gear to the shaft to prevent slippage.NOTE 2: Do not tighten the clamping screw without inserting a shaft, or the bore will be permanently deformed and will not accept a shaft.

Fastening torque of clamping screw (N.m)

Bore (mm)

Fastening torque vs. Slip torque

Slip

torq

ue (

N. m

)

*Data supplied by Designatronics Inc.

■ Fastening torque vs. Slip torque

The slip torque which is dependent on the fastening torque can sometimes be less than the gear strength. Please use caution in selecting. The chart on the right shows the relationship between the slip torque and the fastening torque.

Screw

S1 Shape

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Cap screw dimensions

AH7 NOTE 1 B C D E F G M J KDSL0.5-28DSL0.5-30DSL0.5-32DSL0.5-36DSL0.5-40

m0.5

2830323640

S1S1S1S1S1

55555

1414141414

1415161820

1516171921

55555

8.58.58.58.58.5

13.513.513.513.513.5

M2.5M2.5M2.5M2.5M2.5

3.33.33.33.33.3

4.44.44.44.44.4

DSL0.5-45DSL0.5-48DSL0.5-50DSL0.5-56DSL0.5-60

4548505660

S1S1S1S1S1

55555

1414141414

22.524252830

23.525262931

55555

8.58.58.58.58.5

13.513.513.513.513.5

M2.5M2.5M2.5M2.5M2.5

3.33.33.33.33.3

4.44.44.44.44.4

DSL0.5-64DSL0.5-70DSL0.5-72DSL0.5-75DSL0.5-80

6470727580

S1S1S1S1S1

55555

1414141414

32353637.540

33363738.541

55555

8.58.58.58.58.5

13.513.513.513.513.5

M2.5M2.5M2.5M2.5M2.5

3.33.33.33.33.3

4.44.44.44.44.4

DSL0.5-90DSL0.5-96DSL0.5-100DSL0.5-120

9096

100120

S1S1S1S1

8888

17171717

45485060

46495161

5555

9.89.89.89.8

14.814.814.814.8

M3M3M3M3

4.34.34.34.3

5.95.95.95.9

DSL Acetal Fairloc Hub Spur Gears 0.5Module

Spur

G

ears

DSL

105

NOTE 3: The allowable torques shown in the table are calculated values using the Lewis formula. Please see page 27 for more details.

NOTE 4: The backlash values shown in the table are the theoretical values of a pair of identicalgears in mesh.

Allowable torque(N・m) NOTE 3 Allowable torque(kgf・m) Recommended fastening torque Backlash(mm)NOTE 4

Weight(kg)

Catalog No.Bending strength Surface durability Bending strength Surface durability (N・m) (kgf・m)

0.390.430.460.540.62

―――――

0.040.0440.0470.0550.063

―――――

0.600.600.600.600.60

0.0610.0610.0610.0610.061

0~0.100~0.100~0.100~0.100~0.10

1212121212

DSL0.5-28DSL0.5-30DSL0.5-32DSL0.5-36DSL0.5-40

0.710.780.820.931.01

―――――

0.0730.0790.0830.0950.10

―――――

0.600.600.600.600.80

0.0610.0610.0610.0610.082

0~0.100~0.100~0.100~0.100~0.10

1213131414

DSL0.5-45DSL0.5-48DSL0.5-50DSL0.5-56DSL0.5-60

1.081.201.241.291.39

―――――

0.110.120.130.130.14

―――――

0.800.800.800.800.80

0.0820.0820.0820.0820.082

0~0.100~0.100~0.100~0.100~0.10

1516161719

DSL0.5-64DSL0.5-70DSL0.5-72DSL0.5-75DSL0.5-80

1.581.701.782.15

――――

0.160.170.180.22

――――

0.800.800.800.80

0.0820.0820.0820.082

0~0.100~0.100~0.100~0.10

24252532

DSL0.5-90DSL0.5-96DSL0.5-100DSL0.5-120

Spur

G

ears

DSL

Acetal Fairloc Hub Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

Acetal with SUS303 Insert

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

110~120HRR

-

Cut

Bore

JIS N10 grade (JIS B1702-2: 1998)

Datum reference surface for gear cutting

Not Possible

106

■ Module 0.8, 1

CAUTION: Gears with wider face widths such as SS and SSA series can be used as the mating gars to these.NOTE 1: The bore cannot be modified. It is possible to pin the gear to the shaft to prevent slippage.NOTE 2 : Do not tighten the clamping screw without inserting a shaft, or the bore will be permanently deformed and will not accept a shaft.

S1 Shape

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Cap screw dimensions NOTE 2

AH7 NOTE 1 B C D E F G M J KDSL0.8-20DSL0.8-24DSL0.8-25DSL0.8-28DSL0.8-30

m0.8

2830323640

S1S1S1S1S1

55555

1414141414

1415161820

1516171921

55555

8.58.58.58.58.5

13.513.513.513.513.5

M2.5M2.5M2.5M2.5M2.5

3.33.33.33.33.3

4.44.44.44.44.4

DSL0.8-32DSL0.8-36DSL0.8-40DSL0.8-45DSL0.8-48

4548505660

S1S1S1S1S1

55555

1414141414

22.524252830

23.525262931

55555

8.58.58.58.58.5

13.513.513.513.513.5

M2.5M2.5M2.5M2.5M2.5

3.33.33.33.33.3

4.44.44.44.44.4

DSL0.8-50DSL0.8-56DSL0.8-60DSL0.8-72DSL0.8-80

6470727580

S1S1S1S1S1

55555

1414141414

32353637.540

33363738.541

55555

8.58.58.58.58.5

13.513.513.513.513.5

M2.5M2.5M2.5M2.5M2.5

3.33.33.33.33.3

4.44.44.44.44.4

DSL0.8-90DSL0.8-100

90100

S1S1

88

1717

7280

73.681.6

55

9.89.8

14.814.8

M3M3

4.34.3

5.95.9

DSL1-15DSL1-16DSL1-18DSL1-20DSL1-24

m1

1516182024

S1S1S1S1S1

55555

1414141414

1516182024

1718202226

55555

8.58.58.58.58.5

13.513.513.513.513.5

M2.5M2.5M2.5M2.5M2.5

3.33.33.33.33.3

4.44.44.44.44.4

DSL1-25DSL1-28DSL1-30DSL1-32DSL1-35

2528303235

S1S1S1S1S1

55888

1414171717

2528303235

2730323437

55555

8.58.59.89.89.8

13.513.514.814.814.8

M2.5M2.5M3M3M3

3.33.34.34.34.3

4.44.45.95.95.9

DSL1-36DSL1-40DSL1-45DSL1-48DSL1-50

3640454850

S1S1S1S1S1

88888

1717171717

3640454850

3842475052

55555

9.89.89.89.89.8

14.814.814.814.814.8

M3M3M3M3M3

4.34.34.34.34.3

5.95.95.95.95.9

DSL1-56DSL1-60DSL1-64DSL1-70DSL1-72

5660647072

S1S1S1S1S1

88888

1717171717

5660647072

5862667274

55555

9.89.89.89.89.8

14.814.814.814.814.8

M3M3M3M3M3

4.34.34.34.34.3

5.95.95.95.95.9

DSL1-80DSL1-90DSL1-100

8090

100

S1S1S1

888

171717

8090

100

8292

102

555

9.89.89.8

14.814.814.8

M3M3M3

4.34.34.3

5.95.95.9

DSL Acetal Fairloc Hub Spur Gears 0.8~1Modules

Spur

G

ears

DSL

107

NOTE 3: The allowable torques shown in the table are calculated values using the Lewis formula. Please see page 27 for more details. NOTE 4: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Allowable torque(N・m) NOTE 3 Allowable torque(kgf・m) Recommended fastening torque Backlash(mm)NOTE 4

Weight(kg)

Catalog No.Bending strength Surface durability Bending strength Surface durability (N・m) (kgf・m)

0.580.730.780.890.97

―――――

0.0590.0750.0790.0910.099

―――――

0.600.600.600.600.60

0.0610.0610.0610.0610.061

0~0.100~0.100~0.100~0.100~0.10

1112121213

DSL0.8-20DSL0.8-24DSL0.8-25DSL0.8-28DSL0.8-30

1.061.231.411.621.76

―――――

0.110.130.140.170.18

―――――

0.600.600.600.600.60

0.0610.0610.0610.0610.061

0~0.100~0.100~0.100~0.100~0.10

1415151618

DSL0.8-32DSL0.8-36DSL0.8-40DSL0.8-45DSL0.8-48

1.852.112.282.8

3.15

―――――

0.190.220.230.290.32

―――――

0.600.600.800.800.80

0.0610.0610.0820.0820.082

0~0.100~0.100~0.100~0.100~0.10

1920253035

DSL0.8-50DSL0.8-56DSL0.8-60DSL0.8-72DSL0.8-80

3.584.03

――

0.370.41

――

0.800.80

0.0820.082

0~0.100~0.10

4248

DSL0.8-90DSL0.8-100

0.530.590.690.801.00

―――――

0.0540.060.070.0810.10

―――――

0.600.600.600.600.60

0.0610.0610.0610.0610.061

0~0.100~0.100~0.100~0.100~0.10

1010111112

DSL1-15DSL1-16DSL1-18DSL1-20DSL1-24

1.061.221.331.441.62

―――――

0.110.120.140.150.17

―――――

0.600.600.800.800.80

0.0610.0610.0820.0820.082

0~0.100~0.100~0.100~0.100~0.10

1214171920

DSL1-25DSL1-28DSL1-30DSL1-32DSL1-35

1.681.922.222.412.53

―――――

0.170.200.230.250.26

―――――

0.800.800.800.800.80

0.0820.0820.0820.0820.082

0~0.100~0.100~0.100~0.100~0.10

2022252527

DSL1-36DSL1-40DSL1-45DSL1-48DSL1-50

2.883.123.353.713.83

―――――

0.290.320.340.380.39

―――――

0.800.800.800.800.80

0.0820.0820.0820.0820.082

0~0.100~0.100~0.100~0.100~0.10

3033354041

DSL1-56DSL1-60DSL1-64DSL1-70DSL1-72

4.304.895.49

―――

0.440.500.56

―――

0.800.800.80

0.0820.0820.082

0~0.100~0.100~0.10

485868

DSL1-80DSL1-90DSL1-100

Spur

G

ears

DSL

Acetal Fairloc Hub Spur Gears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

Acetal with SUS303 Insert

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

110~120HRR

-

Cut

Bore

JIS N10 grade (JIS B1702-2: 1998)

Datum reference surface for gear cutting

Not Possible

108

NOTE 1: Even though the holding strength at the material interface is designed to be stronger than the teeth, any secondary operation may weaken the holding strength. When the core O.D. is the same as the hub diameter, you may see some serration on the hub. There is no effect on the strength of the gear.

■ Definition of holdingstrength and safety factor

1 The holding strength between the metal core and the molded material is a function of the contact area. The relationship between the core outside diameter and the radial strength (torque) is shown on the left, while the relationship between the core diameter and the resistant thrust force is shown on the right.

S1 Shape

■ Module 1

Core O.D.(cm)

Rad

ial s

treng

th (K

gf. m

per

cm

of c

onta

ct s

urfa

ce w

idth

)

■ Relationship between radial strength and core diameter

Core O.D.(cm)

Res

ista

nt th

rust

forc

e (K

gf. m

per

cm

of c

onta

ct s

urfa

ce w

idth

) ■ Relationship between resistant thrust force and core diameter

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Metal core dia. NOTE 3

AH7 B C D E F G HNSU1-30NSU1-32NSU1-34NSU1-35NSU1-36

m1

3032343536

S1S1S1S1S1

88888

2022252525

3032343536

3234363738

1010101010

1010101010

2020202020

2022252525

NSU1-40NSU1-45NSU1-48NSU1-50NSU1-60

4045485060

S1S1S1S1S1

1010101010

2530303040

4045485060

4247505262

1010101010

1010101010

2020202020

2834343445

NSU1-70NSU1-80NSU1-90NSU1-100

708090

100

S1S1S1S1

10101010

40404040

708090

100

728292

102

10101010

10101010

20202020

45455565

NSU Plastic Spur Gears with Steel Core 1Module

Spur

G

ears

NSU

Plastic Spur Gears with Steel Core

109

NOTE 2: The allowable torques shown in the table are calculated values using the Lewis formula.Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

* Data supplied by Japan Polypenco Limited.

2 When the ambient temperature rises, obtain the temperature compensation factor, T, from the chart on the right. Also, use a safety factor of 4 or 5 in the calculation.

1Safety factor

Tal = Tmax x x T

■ Ambient temperature compensation factor T

Temperature(°C)

where Tal = Allowable holding strength at the contact surface Tmax = Radial strength - Find from the charts on the left T = Temperature compensation factor from the chart on the right

Allowable torque(N・m) Allowable torque(kgf・m) Backlash(mm)NOTE 3

Weight(kg)

Catalog No.Bending strength Bending strength

1.421.541.661.731.79

0.140.160.170.180.18

0.12~0.260.12~0.260.12~0.260.12~0.260.12~0.26

0.050.060.080.080.08

NSU1-30NSU1-32NSU1-34NSU1-35NSU1-36

2.052.372.562.703.33

0.210.240.260.280.34

0.12~0.260.12~0.260.12~0.260.12~0.260.14~0.28

0.080.120.130.130.23

NSU1-40NSU1-45NSU1-48NSU1-50NSU1-60

3.964.605.245.89

0.400.470.530.60

0.14~0.280.14~0.280.14~0.280.14~0.28

0.240.250.320.40

NSU1-70NSU1-80NSU1-90NSU1-100

Spur

G

ears

NSU

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

MC601ST with S45C core

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

115~120HRR

-

Cut

Bore

JIS N9 grade (JIS B1702-1: 1998) OLD JIS 5 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

110

NOTE 1: Even though the holding strength at the material interface is designed to be stronger than the teeth, a secondary operation may weaken the holding strength. When the core O.D. is the same as the hub diameter, you may see some serration on the hub. There is no effect on the strength of the gear.

MC601ST

S45CS1 Shape

■ Module 1.5, 2

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Metal core dia. NOTE 1

AH7 B C D E F G HNSU1.5-28NSU1.5-30NSU1.5-32NSU1.5-34NSU1.5-35

m1.5

2830323435

S1S1S1S1S1

1010101010

3030333333

4245485152.5

4548515455.5

1515151515

1212121212

2727272727

3030333336

NSU1.5-36NSU1.5-40NSU1.5-45NSU1.5-48NSU1.5-50

3640454850

S1S1S1S1S1

1010101012

3340404040

546067.57275

576370.57578

1515151515

1212121212

2727272727

3645454545

NSU1.5-56NSU1.5-60NSU1.5-68NSU1.5-70NSU1.5-80

5660687080

S1S1S1S1S1

1212121212

5050505060

8490

102105120

8793

105108123

1515151515

1212121212

2727272727

5555677085

NSU1.5-90 90 S1 12 60 135 138 15 12 27 100

NSU2-20NSU2-22NSU2-24NSU2-25NSU2-28

m2

2022242528

S1S1S1S1S1

1010101010

2230303035

4044485056

4448525460

2020202020

1414141414

3434343434

2230303035

NSU2-30NSU2-32NSU2-34NSU2-35NSU2-36

3032343536

S1S1S1S1S1

1012121212

3540404040

6064687072

6468727476

2020202020

1414141414

3434343434

3540454545

NSU2-40NSU2-44NSU2-45NSU2-48NSU2-50

4044454850

S1S1S1S1S1

1515151515

5555556060

80889096

100

849294

100104

2020202020

1414141414

3434343434

6060606565

NSU2-56NSU2-60NSU2-68NSU2-70NSU2-80

5660687080

S1S1S1S1S1

1515151515

6060606060

112120136140160

116124140144164

2020202020

1414141414

3434343434

6585

100105125

NSU Plastic Spur Gears with Steel Core 1.5~2Modules

Spur

G

ears

NSU

Plastic Spur Gears with Steel Core

111

NOTE 2: The allowable torques shown in the table are calculated values using the Lewis formula.Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash(mm)NOTE 3

Weight(kg)

Catalog No.Bending strength Bending strength

4.394.785.195.615.83

0.450.490.530.570.59

0.14~0.300.14~0.300.14~0.300.16~0.320.16~0.32

0.150.150.180.190.21

NSU1.5-28NSU1.5-30NSU1.5-32NSU1.5-34NSU1.5-35

6.056.97.988.669.11

0.620.700.810.880.93

0.16~0.320.16~0.320.16~0.320.16~0.320.16~0.32

0.210.310.330.340.34

NSU1.5-36NSU1.5-40NSU1.5-45NSU1.5-48NSU1.5-50

10.411.212.913.415.5

1.061.151.321.361.58

0.16~0.320.16~0.320.18~0.360.18~0.360.18~0.36

0.500.520.660.691.00

NSU1.5-56NSU1.5-60NSU1.5-68NSU1.5-70NSU1.5-80

17.7 1.80 0.18~0.36 1.28 NSU1.5-90

6.777.668.559.03

10.4

0.690.780.870.921.06

0.18~0.340.18~0.340.18~0.340.18~0.340.20~0.36

0.100.190.200.200.27

NSU2-20NSU2-22NSU2-24NSU2-25NSU2-28

11.312.313.313.814.3

1.151.251.361.411.46

0.20~0.360.20~0.360.20~0.360.20~0.360.20~0.36

0.280.360.410.410.42

NSU2-30NSU2-32NSU2-34NSU2-35NSU2-36

16.418.418.920.521.6

1.671.881.932.092.20

0.20~0.360.20~0.360.20~0.360.20~0.360.20~0.36

0.710.730.750.880.90

NSU2-40NSU2-44NSU2-45NSU2-48NSU2-50

24.626.630.731.736.8

2.512.723.133.233.76

0.22~0.380.22~0.380.22~0.380.22~0.380.22~0.38

0.941.301.651.782.37

NSU2-56NSU2-60NSU2-68NSU2-70NSU2-80

Spur

G

ears

NSU

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

MC601ST with S45C core

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

115~120HRR

-

Cut

Bore

JIS N9 grade (JIS B1702-1: 1998) OLD JIS 5 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

112

NOTE 1: Even though the holding strength at the material interface is designed to be stronger than the teeth, a secondary operation may weaken the holding strength. When the core O.D. is the same as the hub diameter, you may see some serration on the hub. There is no effect on the strength of the gear.

MC601ST

S45CS1 Shape

■ Module 2.5, 3

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Metal core dia. NOTE 1

AH7 B C D E F G HNSU2.5-18NSU2.5-20NSU2.5-22NSU2.5-24NSU2.5-25

m2.5

1820222425

S1S1S1S1S1

1212121212

2528353535

4550556062.5

5055606567.5

2525252525

1515151515

4040404040

2528353535

NSU2.5-28NSU2.5-30NSU2.5-32NSU2.5-34NSU2.5-35

2830323435

S1S1S1S1S1

1212121212

4045455055

7075808587.5

7580859092.5

2525252525

1515151515

4040404040

4050505560

NSU2.5-36NSU2.5-40NSU2.5-44NSU2.5-45NSU2.5-48

3640444548

S1S1S1S1S1

1215151515

5565656565

90100110112.5120

95105115117.5125

2525252525

1515151515

4040404040

6070757585

NSU2.5-50NSU2.5-56NSU2.5-60NSU2.5-68NSU2.5-70

5056606870

S1S1S1S1S1

1515202020

6565707070

125140150170175

1301451 55175180

2525252525

1515151515

4040404040

95105115135140

NSU3-16NSU3-18NSU3-20NSU3-22NSU3-24

m3

1618202224

S1S1S1S1S1

1212121212

2430333843

4854606672

5460667278

3030303030

1717171717

4747474747

2430333843

NSU3-25NSU3-28NSU3-30NSU3-32NSU3-34

2528303234

S1S1S1S1S1

1215151515

4550556060

75849096

102

819096

102108

3030303030

1717171717

4747474747

4550606565

NSU3-35NSU3-36NSU3-40NSU3-44NSU3-45

3536404445

S1S1S1S1S1

1515202020

6060707070

105108120132135

111114126138141

3030303030

1717171717

4747474747

75808595

105

NSU3-48NSU3-50NSU3-56NSU3-60NSU3-68

4850566068

S1S1S1S1S1

2020202020

7070707070

144150168180204

150156174186210

3030303030

1717171717

4747474747

105105130145165

NSU3-70 70 S1 20 70 210 216 30 17 47 175

NSU Plastic Spur Gears with Steel Core 2.5~3Modules

Spur

G

ears

NSU

Plastic Spur Gears with Steel Core

113

NOTE 2: The allowable torques shown in the table are calculated values using the Lewis formula. Please see page 27 for more details.NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash(mm)NOTE 3

Weight(kg)

Catalog No.Bending strength Bending strength

11.413.215.016.717.6

1.171.351.531.701.80

0.20~0.360.20~0.360.22~0.380.22~0.380.22~0.38

0.150.200.310.330.33

NSU2.5-18NSU2.5-20NSU2.5-22NSU2.5-24NSU2.5-25

20.322.124.026.027.0

2.072.252.452.652.75

0.22~0.380.22~0.380.22~0.380.22~0.380.22~0.38

0.440.620.630.760.90

NSU2.5-28NSU2.5-30NSU2.5-32NSU2.5-34NSU2.5-35

28.032.035.937.040.1

2.853.263.673.774.09

0.22~0.380.22~0.380.24~0.400.24~0.400.24~0.40

0.911.201.351.401.60

NSU2.5-36NSU2.5-40NSU2.5-44NSU2.5-45NSU2.5-48

42.248.052.059.961.9

4.304.905.306.116.32

0.24~0.400.24~0.400.24~0.400.24~0.400.24~0.40

1.902.232.603.413.63

NSU2.5-50NSU2.5-56NSU2.5-60NSU2.5-68NSU2.5-70

16.919.722.925.828.8

1.722.012.332.642.94

0.28~0.440.30~0.460.30~0.460.30~0.460.30~0.46

0.170.280.350.460.59

NSU3-16NSU3-18NSU3-20NSU3-22NSU3-24

30.535.138.241.544.9

3.113.583.904.234.58

0.30~0.460.30~0.460.30~0.460.30~0.460.32~0.48

0.650.781.101.201.30

NSU3-25NSU3-28NSU3-30NSU3-32NSU3-34

46.648.455.262.163.9

4.754.935.636.336.51

0.32~0.480.32~0.480.32~0.480.32~0.480.32~0.48

1.501.701.902.302.70

NSU3-35NSU3-36NSU3-40NSU3-44NSU3-45

69.272.983.089.9

104

7.067.438.469.17

10.6

0.32~0.480.32~0.480.32~0.480.32~0.480.32~0.48

2.702.803.804.605.80

NSU3-48NSU3-50NSU3-56NSU3-60NSU3-68

107 10.9 0.32~0.48 6.40 NSU3-70

Spur

G

ears

NSU

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

MC601ST with S45C core

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

115~120HRR

-

Cut

Bore

JIS N9 grade (JIS B1702-1: 1998) OLD JIS 5 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

PU

114

NOTE 1: Even though the holding strength at the material interface is designed to be stronger than the teeth, a secondary operation may weaken the holding strength. When the core O.D. is the same as the hub diameter, you may see some serration on the hub. There is no effect on the strength of the gear.

MC901

SUS303 S1 Shape

■ Module 1, 1.5, 2

Catalog No. Module No. of teeth ShapeBore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Metal core dia. NOTE 1

AH7 B C D E F G H

PU1-30PU1-35PU1-40PU1-50PU1-60PU1-80

m1

303540506080

S1S1S1S1S1S1

88

10101010

202525304040

303540506080

323742526282

101010101010

101010101010

202020202020

202528344545

PU1.5-30PU1.5-35PU1.5-40PU1.5-50PU1.5-60PU1.5-80

m1.5

303540506080

S1S1S1S1S1S1

101010121212

303340405060

4552.5607590

120

4855.5637893

123

151515151515

121212121212

272727272727

303645455585

PU2-20PU2-25PU2-30PU2-35PU2-40PU2-50PU2-60

m2

20253035405060

S1S1S1S1S1S1S1

10101012151515

22303540556060

4050607080

100120

4454647484

104124

20202020202020

14141414141414

34343434343434

22303545606585

PU Plastic Spur Gears with Stainless Steel Core 1~2Modules

Spur

G

ears

Plastic Spur Gears with Stainless Steel Core

PU

115

NOTE 2: The allowable torques shown in the table are calculated values using the Lewis formula.Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash(mm)NOTE 3

Weight(kg)

Catalog No.Bending strength Bending strength

1.031.251.481.962.413.34

0.100.130.150.200.250.34

0.12~0.260.12~0.260.12~0.260.12~0.260.14~0.280.14~0.28

0.050.080.080.130.230.25

PU1-30PU1-35PU1-40PU1-50PU1-60PU1-80

3.464.225.006.608.14

11.26

0.350.430.510.670.831.15

0.14~0.300.16~0.320.16~0.320.16~0.320.16~0.320.18~0.36

0.150.210.310.340.521.00

PU1.5-30PU1.5-35PU1.5-40PU1.5-50PU1.5-60PU1.5-80

4.916.548.20

10.011.915.719.3

0.500.670.841.021.211.601.97

0.18~0.340.18~0.340.20~0.360.20~0.360.20~0.360.20~0.360.22~0.38

0.100.200.280.410.710.901.30

PU2-20PU2-25PU2-30PU2-35PU2-40PU2-50PU2-60

Spur

G

ears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

MC901 with SUS303 core

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

115~120HRR

-

Cut

Bore

JIS N9 grade (JIS B1702-1: 1998) OLD JIS 5 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

PS

116

A key, taper pin, roll or spiral pin, set screw or pressed bushing can be used to fasten a plastic gear to a shaft. For conditions shown below, there is a tendency for the gear to loosen. Therefore, a metal hub must be used to fix the gear:

1. When the ambient temperature is high. 2. When the gear diameter is large. 3. When the gear is subjected to reversing load

which causes high impact on the key.

The diagrams on the right are three examples of methods for fastening plastic gears to metal hubs. If the shape of a gear is not suitable for bolt fastening, then the overmolding of plastic on a metal hub is recommended (shown in the far right diagram).

USEFUL HINT

S1 Shape

■ Module 1

MC nylon MC nylon MC nylon

Metal Metal Metal

Metal

The overmolding of plastic on a metal hub

MC nylon

NOTE 1: The bore tolerance at the time of production is H8. Significant variations in temperature or humidity can cause dimensional changes plastic gears (MC Nylon). Please see page 32 for more details.

Catalog No. Module No. of teeth ShapeBore NOTE 1 Hub dia. Pitch dia. Outside dia. Face width Hub width Total length

AH7 B C D E F GPS1-15PS1-16PS1-18PS1-20PS1-22

m1

1516182022

S1S1S1S1S1

66668

1212141618

1516182022

1718202224

1010101010

1010101010

2020202020

PS1-24PS1-25PS1-26PS1-28PS1-30

2425262830

S1S1S1S1S1

88888

2020202225

2425262830

2627283032

1010101010

1010101010

2020202020

PS1-32PS1-35PS1-36PS1-40PS1-45

3235364045

S1S1S1S1S1

888

1010

2626283535

3235364045

3437384247

1010101010

1010101010

2020202020

PS1-48PS1-50PS1-55PS1-60PS1-65

4850556065

S1S1S1S1S1

1010101010

3535353535

4850556065

5052576267

1010101010

1010101010

2020202020

PS1-70PS1-75PS1-80PS1-85PS1-90

7075808590

S1S1S1S1S1

1010101010

4040404040

7075808590

7277828792

1010101010

1010101010

2020202020

PS1-95PS1-100

95100

S1S1

1010

4040

95100

97102

1010

1010

2020

PS Plastic Spur Gears 1Module

Spur

G

ears

Plastic Spur Gears

PS

117

NOTE 2: The allowable torques shown in the table are calculated values using the Lewis formula.Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Allowable torque(N・m) NOTE 2Allowable torque(kgf・m) Backlash(mm)NOTE 3

Weight(kg)

Catalog No.Bending strength Bending strength

0.410.450.530.610.69

0.0420.0460.054

0 .0630.071

0.10~0.240.10~0.240.10~0.240.10~0.240.12~0.26

0.00300.00300.00400.00600.0060

PS1-15PS1-16PS1-18PS1-20PS1-22

0.770.820.860.941.03

0.0790.0830.0880.0960.10

0.12~0.260.12~0.260.12~0.260.12~0.260.12~0.26

0.00700.00700.00800.00900.011

PS1-24PS1-25PS1-26PS1-28PS1-30

1.111.251.301.481.71

0.110.130.130.150.17

0.12~0.260.12~0.260.12~0.260.12~0.260.12~0.26

0.0150.0160.0180.0230.028

PS1-32PS1-35PS1-36PS1-40PS1-45

1.861.962.182.412.64

0.190.200.220.250.27

0.12~0.260.12~0.260.14~0.280.14~0.280.14~0.28

0.0300.0320.0370.0420.048

PS1-48PS1-50PS1-55PS1-60PS1-65

2.873.113.343.573.80

0.290.320.340.360.39

0.14~0.280.14~0.280.14~0.280.14~0.280.14~0.28

0.0570.0640.0730.0780.086

PS1-70PS1-75PS1-80PS1-85PS1-90

4.034.27

0.410.44

0.14~0.280.14~0.28

0.0950.10

PS1-95PS1-100

Spur

G

ears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

MC901

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

115~120HRR

-

Cut

Bore

JIS N9 grade (JIS B1702-1: 1998) OLD JIS 5 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

S5 Shape

PS.PSA

118

S1 Shape

■ Module 1.5

NOTE 1: The bore tolerance at the time of production is H8. Significant variations in temperature or humidity can cause dimensional changes in plastic gears (MC Nylon) leading to distortions of bore, outside diameter etc. Please see page 32 for more details.

Catalog No. Module No. of teeth ShapeBore NOTE 1 Hub dia. Pitch dia. Outside dia. Face width Hub width Total length

AH7 B C D E F GPS1.5-15PS1.5-16PS1.5-18PS1.5-20PS1.5-22

m1.5

1516182022

S1S1S1S1S1

88888

1820222426

22.524273033

25.527303336

1515151515

1010101010

2525252525

PS1.5-24PS1.5-25PS1.5-26PS1.5-28PS1.5-30

2425262830

S1S1S1S1S1

88888

2830323638

3637.5394245

3940.5424548

1515151515

1010101010

2525252525

PS1.5-32PS1.5-35PS1.5-36PS1.5-40PS1.5-45

3235364045

S1S1S1S1S1

888

1010

4042454545

4852.5546067.5

5155.5576370.5

1515151515

1010101010

2525252525

PS1.5-48PS1.5-50PS1.5-55PS1.5-60PS1.5-65

4850556065

S1S1S1S1S1

1010101012

4545455050

727582.59097.5

757885.593

100.5

1515151515

1010101010

2525252525

PS1.5-70PS1.5-75PS1.5-80PS1.5-85PS1.5-90

7075808590

S1S1S1S1S1

1212121212

5050555555

105112.5120127.5135

108115.5123130.5138

1515151515

1010101010

2525252525

PS1.5-95PS1.5-100

95100

S1S1

1212

6060

142.5150

145.5153

1515

1010

2525

PS2-12PS2-13PS2-14PS2-15PS2-16

m2

1213141516

S1S1S1S1S1

1010101010

1820202426

2426283032

2830323436

2020202020

1010101010

3030303030

PS2-18PS2-20PS2-22PS2-24PS2-25

1820222425

S1S1S1S1S1

1010101010

3032353840

3640444850

4044485254

2020202020

1010101010

3030303030

PS2-26PS2-28PS2-30

262830

S1S1S1

101010

424550

525660

566064

202020

101010

303030

PSA2-32PSA2-35PSA2-36PSA2-40PSA2-45

m2

3235364045

S5S5S5S5S5

1212121212

―――――

6470728090

6874768494

2020202020

―――――

―――――

PSA2-48PSA2-50PSA2-55PSA2-60PSA2-65

4850556065

S5S5S5S5S5

1212121215

―――――

96100110120130

100104114124134

2020202020

―――――

―――――

PSA2-70PSA2-75PSA2-80PSA2-85PSA2-90

7075808590

S5S5S5S5S5

1515151515

―――――

140150160170180

144154164174184

2020202020

―――――

―――――

PSA2-95PSA2-100

95100

S5S5

1515

――

190200

194204

2020

――

――

PS.PSA Plastic Spur Gears 1.5~2Modules

Spur

G

ears

Plastic Spur Gears

PS.PSA

119

NOTE 2: The allowable torques shown in the table are calculated values using the Lewis formula. Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Allowable torque(N・m) NOTE 2Allowable torque(kgf・m) Backlash(mm)NOTE 3

Weight(kg)

Catalog No.Bending strength Bending strength

1.391.531.792.072.34

0.140.160.180.210.24

0.14~0.300.14~0.300.14~0.300.14~0.300.14~0.30

0.00900.0100.0130.0180.019

PS1.5-15PS1.5-16PS1.5-18PS1.5-20PS1.5-22

2.612.762.913.183.46

0.270.280.30.320.35

0.14~0.300.14~0.300.14~0.300.14~0.300.14~0.30

0.0280.0290.0300.0350.045

PS1.5-24PS1.5-25PS1.5-26PS1.5-28PS1.5-30

3.764.224.385.005.79

0.380.430.450.510.59

0.14~0.300.16~0.320.16~0.320.16~0.320.16~0.32

0.0450.0500.0590.0650.078

PS1.5-32PS1.5-35PS1.5-36PS1.5-40PS1.5-45

6.276.607.368.148.91

0.640.670.750.830.91

0.16~0.320.16~0.320.16~0.320.16~0.320.16~0.32

0.0860.0920.110.130.15

PS1.5-48PS1.5-50PS1.5-55PS1.5-60PS1.5-65

9.6910.511.312.012.8

0.991.071.151.231.31

0.18~0.360.18~0.360.18~0.360.18~0.360.18~0.36

0.170.190.220.250.27

PS1.5-70PS1.5-75PS1.5-80PS1.5-85PS1.5-90

13.614.4

1.391.47

0.18~0.360.18~0.36

0.300.34

PS1.5-95PS1.5-100

2.252.592.963.293.63

0.230.260.300.340.37

0.18~0.340.18~0.340.18~0.340.18~0.340.18~0.34

0.0110.0130.0150.0160.022

PS2-12PS2-13PS2-14PS2-15PS2-16

4.244.915.556.196.54

0.430.500.570.630.67

0.18~0.340.18~0.340.18~0.340.18~0.340.18~0.34

0.0290.0320.0430.0520.059

PS2-18PS2-20PS2-22PS2-24PS2-25

6.907.548.20

0.700.770.84

0.20~0.360.20~0.360.20~0.36

0.0620.0740.087

PS2-26PS2-28PS2-30

8.9110.010.411.913.7

0.911.021.061.211.40

0.20~0.360.20~0.360.20~0.360.20~0.360.20~0.36

0.0720.0860.0890.110.15

PSA2-32PSA2-35PSA2-36PSA2-40PSA2-45

14.915.717.519.321.1

1.521.601.781.972.15

0.20~0.360.20~0.360.22~0.380.22~0.380.22~0.38

0.160.180.220.280.30

PSA2-48PSA2-50PSA2-55PSA2-60PSA2-65

23.024.926.728.530.4

2.342.542.722.913.10

0.22~0.380.22~0.380.22~0.380.22~0.380.22~0.38

0.350.410.460.520.59

PSA2-70PSA2-75PSA2-80PSA2-85PSA2-90

32.334.2

3.293.48

0.22~0.380.22~0.38

0.650.72

PSA2-95PSA2-100

Spur

G

ears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

MC901

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

115~120HRR

-

Cut

Bore

JIS N9 grade (JIS B1702-1: 1998) OLD JIS 5 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

PS.PSA

120

NOTE 1: The bore tolerance at the time of production is H8. Significant variations in temperature or humidity can cause dimensional changes in plastic gears (MC Nylon) leading to distortions of bore, outside diameter etc. Please see page 32 for more details.

S5 ShapeS1 Shape■ Module 2.5, 3

Catalog No. Module No. of teeth ShapeBore NOTE 1 Hub dia. Pitch dia. Outside dia. Face width Hub width Total length

AH7 B C D E F GPS2.5-12PS2.5-13PS2.5-14PS2.5-15PS2.5-16

1213141516

S1S1S1S1S1

1010101212

2325253032

3032.53537.540

3537.54042.545

2525252525

1212121212

3737373737

PS2.5-18PS2.5-20PS2.5-22PS2.5-24PS2.5-25

1820222425

S1S1S1S1S1

1212121212

3840444850

4550556062.5

5055606567.5

2525252525

1212121212

3737373737

PS2.5-26PS2.5-28PS2.5-30

262830

S1S1S1

121212

556065

657075

707580

252525

121212

373737

PSA2.5-32PSA2.5-35PSA2.5-36PSA2.5-40PSA2.5-45

3235364045

S5S5S5S5S5

1515151515

―――――

8087.590

100112.5

8592.595

105117.5

2525252525

―――――

―――――

PSA2.5-48PSA2.5-50PSA2.5-55PSA2.5-60

48505560

S5S5S5S5

15151515

――――

120125137.5150

125130142.5155

25252525

――――

――――

PS3-12PS3-13PS3-14PS3-15PS3-16

1213141516

S1S1S1S1S1

1212121414

2830323638

3639424548

4245485154

3030303030

1515151515

4545454545

PS3-18PS3-20PS3-22PS3-24PS3-25

1820222425

S1S1S1S1S1

1414141414

4050545860

5460667275

6066727881

3030303030

1515151515

4545454545

PS3-26PS3-28PS3-30

262830

S1S1S1

141414

657075

788490

849096

303030

151515

454545

PSA3-32PSA3-35PSA3-36PSA3-40PSA3-45 m3

3235364045

S5S5S5S5S5

1818181818

―――――

96105108120135

102111114126141

3030303030

―――――

―――――

PSA3-48PSA3-50PSA3-55PSA3-60

48505560

S5S5S5S5

18181818

――――

144150165180

150156171186

30303030

――――

――――

m2.5

m3

PS.PSA Plastic Spur Gears 2.5~3Modules

Spur

G

ears

Plastic Spur Gears

121

NOTE 2: The allowable torques shown in the table are calculated values using the Lewis formula.Please see page 27 for more details.

NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Allowable torque(N・m) NOTE 2Allowable torque(kgf・m) Backlash(mm)NOTE 3

Weight(kg)

Catalog No.Bending strength Bending strength

4.395.065.776.427.09

0.450.520.590.650.72

0.20~0.360.20~0.360.20~0.360.20~0.360.20~0.36

0.0260.0270.0310.0340.037

PS2.5-12PS2.5-13PS2.5-14PS2.5-15PS2.5-16

8.289.59

10.812.112.8

0.840.981.111.231.30

0.20~0.360.20~0.360.22~0.380.22~0.380.22~0.38

0.0740.0650.0840.0960.10

PS2.5-18PS2.5-20PS2.5-22PS2.5-24PS2.5-25

13.514.716.0

1.371.501.63

0.22~0.380.22~0.380.22~0.38

0.120.150.18

PS2.5-26PS2.5-28PS2.5-30

17.419.520.323.226.8

1.771.992.072.362.73

0.22~0.380.22~0.380.22~0.380.22~0.380.24~0.40

0.160.160.170.180.28

PSA2.5-32PSA2.5-35PSA2.5-36PSA2.5-40PSA2.5-45

29.030.634.137.7

2.963.123.483.84

0.24~0.400.24~0.400.24~0.400.24~0.40

0.320.360.420.51

PSA2.5-48PSA2.5-50PSA2.5-55PSA2.5-60

7.588.749.97

11.112.3

0.770.891.021.131.25

0.28~0.440.28~0.440.28~0.440.28~0.440.28~0.44

0.040.0480.0560.0590.074

PS3-12PS3-13PS3-14PS3-15PS3-16

14.316.618.720.922.1

1.461.691.912.132.25

0.30~0.460.30~0.460.30~0.460.30~0.460.30~0.46

0.100.120.150.180.19

PS3-18PS3-20PS3-22PS3-24PS3-25

23.325.527.7

2.372.602.82

0.30~0.460.30~0.460.30~0.46

0.210.250.26

PS3-26PS3-28PS3-30

30.133.835.140.046.3

3.073.443.574.084.72

0.30~0.460.32~0.480.32~0.480.32~0.480.32~0.48

0.230.290.310.380.49

PSA3-32PSA3-35PSA3-36PSA3-40PSA3-45

50.252.858.965.1

5.125.396.016.64

0.32~0.480.32~0.480.32~0.480.32~0.48

0.550.530.730.88

PSA3-48PSA3-50PSA3-55PSA3-60

Spur

G

ears

PS.

PSA

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

MC901

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

115~120HRR

-

Cut

Bore

JIS N9 grade (JIS B1702-1: 1998) OLD JIS 5 grade (JIS B1702: 1976)

Datum reference surface for gear cutting

Possible

122

NOTE 1: The bore tolerance is generally -0.05 to -0.1 but may be + values at the central portion of the hole. Re-machining the bore is not recommended since reworking material may expose voids.

Catalog No. Module No. of teeth ShapeBore 1 NOTE 1 Bore 2 Hub dia. 1 Hub dia. 2 Pitch dia. Outside dia. Face width Hub width

A A' B B' C D E FDS0.5-12DS0.5-15DS0.5-16DS0.5-18DS0.5-20

m0.5

1215161820

S8S8S8S8S9

22334

4567―

4.54.5668

――――5

67.589

10

78.59

1011

33333

44444

DS0.5-24DS0.5-25DS0.5-28DS0.5-30DS0.5-32

2425283032

S9S9S9S9S9

44455

―――――

888

1010

56677

1212.5141516

1313.5151617

33333

44444

DS0.5-35DS0.5-36DS0.5-40DS0.5-45DS0.5-48

3536404548

S9S9S9S9S9

55555

―――――

1010121212

77888

17.5182022.524

18.5192123.525

33333

44444

DS0.5-50DS0.5-56DS0.5-60DS0.5-64DS0.5-70

5056606470

S9S9S9S9S9

56666

―――――

1214141414

810101010

2528303235

2629313336

33333

45555

DS0.5-72DS0.5-80

7280

S9S9

66

――

1414

1010

3640

3741

33

55

DS0.8-12DS0.8-15DS0.8-16DS0.8-18DS0.8-20

m0.8

1215161820

S9S9S9S9S9

33445

―――――

6688

10

45668

9.61212.814.416

11.213.614.41617.6

44444

55555

DS0.8-24DS0.8-25DS0.8-28DS0.8-30DS0.8-32

2425283032

S9S9S9S9S9

55566

―――――

1010101212

888

1010

19.22022.42425.6

20.821.62425.627.2

44444

55555

DS0.8-35DS0.8-36DS0.8-40DS0.8-45DS0.8-48

3536404548

S9S9S9S9S9

66666

―――――

1212121214.5

1010101011.7

2828.8323638.4

29.630.433.637.640

44444

55556

DS0.8-50DS0.8-56DS0.8-60DS0.8-64DS0.8-70

5056606470

S9S9S9S9S9

66666

―――――

14.514.514.515.515.5

11.711.711.711.711.7

4044.84851.256

41.646.449.652.857.6

44444

66666

DS0.8-72DS0.8-80

7280

S9S9

66

――

15.515.5

11.711.7

57.664

59.265.6

44

66

Spur

G

ears

DS

■ Module 0.5, 0.8

DS Injection Molded Spur Gears 0.5~0.8Modules

S9 Shape

S8 Shape

Injection Molded Spur Gears

DS

123

NOTE 2: The allowable torques shown in the table are calculated values using the Lewis formula. Please see page 27 for more details.NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Total length Web thickness Web O.D. Depth of counterbore Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash(mm)NOTE 3

Weight(kg)

Catalog No.G H I J Bending strength Bending strength

77777

――――

2.4

――――8

0.60.60.60.6―

0.063 0.092 0.10 0.12 0.14

0.0064 0.0094 0.010 0.012 0.014

0.05~0.300.05~0.300.05~0.300.05~0.300.05~0.30

11111

DS0.5-12DS0.5-15DS0.5-16DS0.5-18DS0.5-20

77777

1.81.81.81.81.8

9.510121213

―――――

0.17 0.18 0.21 0.23 0.25

0.018 0.019 0.022 0.023 0.025

0.05~0.300.05~0.300.05~0.300.05~0.300.05~0.30

11111

DS0.5-24DS0.5-25DS0.5-28DS0.5-30DS0.5-32

77777

1.81.81.81.81.8

14.515171921

―――――

0.28 0.29 0.33 0.38 0.42

0.029 0.030 0.034 0.039 0.043

0.05~0.300.05~0.300.05~0.300.05~0.300.05~0.30

11122

DS0.5-35DS0.5-36DS0.5-40DS0.5-45DS0.5-48

78888

1.81.81.81.81.8

2224.526.528.531.5

―――――

0.44 0.50 0.54 0.58 0.64

0.045 0.051 0.055 0.059 0.066

0.05~0.300.05~0.300.05~0.300.05~0.300.05~0.30

23334

DS0.5-50DS0.5-56DS0.5-60DS0.5-64DS0.5-70

88

1.81.8

32.536.5

――

0.67 0.75

0.068 0.076

0.05~0.300.05~0.30

45

DS0.5-72DS0.5-80

99999

22222

6.78.89.2

10.712.7

―――――

0.22 0.31 0.35 0.41 0.47

0.022 0.032 0.035 0.041 0.048

0.08~0.480.08~0.480.08~0.480.08~0.480.08~0.48

11112

DS0.8-12DS0.8-15DS0.8-16DS0.8-18DS0.8-20

99999

22222

15.515.5192021.7

―――――

0.59 0.63 0.72 0.79 0.85

0.060 0.064 0.074 0.080 0.087

0.08~0.480.08~0.480.08~0.480.08~0.480.08~0.48

22233

DS0.8-24DS0.8-25DS0.8-28DS0.8-30DS0.8-32

9999

10

22222

242528.33234.3

―――――

0.96 0.99 1.13 1.31 1.42

0.098 0.10 0.12 0.13 0.15

0.08~0.480.08~0.480.08~0.480.08~0.480.08~0.48

33445

DS0.8-35DS0.8-36DS0.8-40DS0.8-45DS0.8-48

1010101010

22222

36414445.552

―――――

1.50 1.70 1.85 1.98 2.20

0.15 0.17 0.19 0.20 0.22

0.08~0.480.08~0.480.08~0.480.08~0.480.08~0.48

67889

DS0.8-50DS0.8-56DS0.8-60DS0.8-64DS0.8-70

1010

22

5460

――

2.27 2.55

0.23 0.26

0.08~0.480.08~0.48

1012

DS0.8-72DS0.8-80

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

DURACON acetal (M90-44)

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

110~120HRR

-

Injection molded

Bore

JIS N12 grade (JIS B1702-2: 1998) OLD JIS 8 grade (JIS B1702: 1976)

Datum reference surface for tooth forming

Please avoid reworking material as this may expose voids.

Spur

G

ears

BB30507

BB30608

BB40609

BB40612

BB50812

BB50814

DS0.5, DM0.8, DB0.8

DS0.5, DS0.8, DM1

DS0.8, DM1

DS1, DB1

DS1

DS1, DM1.5

DS.BB

124

The table below shows a series of standard metal bushings that can be pressed into standard injection molded gears.

3

3

4

4

5

5

5

6

6

6

8

8

7

8

9

12

12

14

L 0-0.3

Material: Oil impregnated sintered bronze.

S9 Shape

CAUTION: Gears with wider face widths such as SS and SSA series can be used as the mating gears to these.NOTE 1: The bore tolerance is generally -0.05 to -0.1 but may be + values at the central portion of the hole. Re-machining the bore is not recommended since reworking

material may expose voids.

d+0.020 D+0.02

-0.01

(unit: mm)

Spur

G

ears

■ Module 1

DS Injection Molded Spur Gears 1Module

BB Sintered Metal Bushings

Catalog

No.

I.D. of bushing LengthO.D. of bushingProducts that can use the bushing

Catalog No. Module No. of teeth ShapeBore 1 NOTE 1 Bore 2 Hub dia. 1 Hub dia. 2 Pitch dia. Outside dia. Face width Hub width

A A' B B' C D E FDS1-12DS1-15DS1-16DS1-18DS1-20

m1

1215161820

S9S9S9S9S9

44555

―――――

88

101011.7

67889

1215161820

1417182022

66666

66666

DS1-24DS1-25DS1-28DS1-30DS1-32

2425283032

S9S9S9S9S9

55566

―――――

11.711.711.71414

999

1212

2425283032

2627303234

66666

66666

DS1-35DS1-36DS1-40DS1-45DS1-48

3536404548

S9S9S9S9S9

66888

―――――

1414161616

1212141414

3536404548

3738424750

66666

66668

DS1-50DS1-56DS1-60DS1-64DS1-70

5056606470

S9S9S9S9S9

88888

―――――

1618181818

1415.615.615.615.6

5056606470

5258626672

66666

88888

DS1-72DS1-80

7280

S9S9

88

――

1818

15.615.6

7280

7482

66

88

±0.2

Tolerance

±0.5

±0.40

±0.35

±0.3

±0.25

NOTE 2: The allowable torques shown in the table are calculated values using the Lewis formula. Please see page 27 for more details.NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

Injection Molded Spur Gears

DS

125

■ Tolerance of Injection Molded Products (unit: mm)

Range

below 3

3 up to 6

6 up to 10

10 up to 18

18 up to 30

30 up

Total length Web thickness Web O.D. Depth of counterbore Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m) Backlash(mm)NOTE 3

Weight(kg)

Catalog No.G H I J Bending strength Bending strength

1212121212

33333

8.51111.513.515

―――――

0.44 0.65 0.71 0.83 0.96

0.045 0.066 0.073 0.085 0.098

0.10~0.600.10~0.600.10~0.600.10~0.600.10~0.60

12223

DS1-12DS1-15DS1-16DS1-18DS1-20

1212121212

33333

1720232426.5

―――――

1.22 1.28 1.48 1.61 1.75

0.12 0.13 0.15 0.16 0.18

0.10~0.600.10~0.600.10~0.600.10~0.600.10~0.60

44456

DS1-24DS1-25DS1-28DS1-30DS1-32

1212121214

33333

29303439.540

―――――

1.96 2.04 2.33 2.69 2.92

0.20 0.21 0.24 0.27 0.30

0.10~0.600.10~0.600.10~0.600.10~0.600.10~0.60

6689

11

DS1-35DS1-36DS1-40DS1-45DS1-48

1414141414

33333

42.548.552.556.562.5

―――――

3.07 3.49 3.78 4.07 4.50

0.31 0.36 0.39 0.41 0.46

0.10~0.600.10~0.600.10~0.600.10~0.600.10~0.60

1215161821

DS1-50DS1-56DS1-60DS1-64DS1-70

1414

33

6472.5

――

4.65 5.23

0.47 0.53

0.10~0.600.10~0.60

2126

DS1-72DS1-80

Spur

G

ears

Specifications

Precision grade

Gear teeth

Pressure angle

Material

Heat treatment

Standard full depth

20°

DURACON acetal (M90-44)

-

Tooth hardness

Surface treatment

Tooth surface finish

Secondary Operations

110~120HRR

-

Injection molded

Bore

JIS N12 grade (JIS B1702-2: 1998) OLD JIS 8 grade (JIS B1702: 1976)

Datum reference surface for tooth forming

Please avoid reworking material as this may expose voids.

BSS

126

BSS0.5-20BSS0.5-25BSS0.5-30BSS0.5-40

0.50.50.50.5

z20253040

AH7

4444

B08.511.013.017.0

C10.012.515.020.0

11.013.516.021.0

3333

7777

10101010

S1S1S1S1

0.0910.120.160.23

(0.0093)(0.013)(0.016)(0.024)

0~0.1 0~0.10 0~0.10

0~0.1

04081120

BSS0.8-20BSS0.8-25BSS0.8-30BSS0.8-40

0.80.80.80.8

20253040

5555

13.517.020.020.0

16202432

17.621.625.633.6

4444

8888

12121212

S1S1S1S1

0.310.430.550.79

(0.032)(0.043)(0.056)(0.081)

0~0.1 0~0.10 0~0.10

0~0.1

14243446

NOTE 1: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 27 for more details.NOTE 2: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

S1 Shape

BSS Brass Spur Gears 0.5~0.8Modules

■ Module 0.5

■ Module 0.8

Catalog

No.

Module

m G

Total length

F

Hub width

E

Face width

D

Outside dia.Hub dia. Pitch dia.Bore No. of teethShape

Allowable torque (N.m)NOTE 1

Bending strength

Allowable torque(kgf.m)

Bending strength

Backlash (mm)NOTE 2

Weight

(gf)

Spur

G

ears

Specifications

Standard full depth 20°Free cutting brass (C3604BD-F)-Less than 80HRR-CutBore

JIS N8 grade (JIS B1702-1: 1998) OLD JIS 4 grade (JIS B1702: 1976)

Possible

Precision grade

Tooth hardnessSurface treatmentTooth surface finish

Secondary Operations

Datum reference surface forgear cutting

Gear teethPressure angleMaterialHeat treatment

SSR

127

NOTE 1: Although the inside diameter of these gears are made to H8 tolerance, since the ring shape is easily deformed, some error may occur beyond the stated tolerance.

NOTE 2: The allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page 27 for more details.NOTE 3: The backlash values shown in the table are the theoretical values of a pair of identical gears in mesh.

S5 Shape

Backlash(mm)NOTE 3

Weight(kg)

Catalog No.

0.17~0.370.20~0.41

2.504.30

SSR2-120SSR2-200

0.19~0.410.22~0.46

4.608.00

SSR2.5-120SSR2.5-200

0.22~0.450.22~0.45

7.8010.6

SSR3-120SSR3-160

Catalog No. Module No. of teeth ShapeBore NOTE 1 Pitch dia. Outside dia. Face width Allowable torque(N・m) NOTE 2 Allowable torque(kgf・m)

AH8 C D E Bending strength Surface durability Bending strength Surface durability

SSR2-120SSR2-200

m2120200

S5S5

194354

240400

244404

2020

366630

44.084.2

37.464.3

4.498.59

SSR2.5-120SSR2.5-200

m2.5120200

S5S5

245445

300500

305505

2525

7151230

88.5169

72.9126

9.0217.2

SSR3-120SSR3-160

m3120160

S5S5

296416

360480

366486

3030

12401680

157226

126171

16.023.0

Specifications

Standard full depth 20°S45C-Less than 194HB-CutBore

JIS N9 grade (JIS B1702-1: 1998) OLD JIS 5 grade (JIS B1702: 1976)

Possible

Spur

G

ears

■ Module 2, 2.5, 3

SSR Steel Ring Gears (Spur Gears) 2~3Modules

Precision grade

Tooth hardnessSurface treatmentTooth surface finish

Secondary Operations

Datum reference surface forgear cutting

Gear teethPressure angleMaterialHeat treatment