8 (BSF.., PSF..)

2 General informationProduct Description and Overview of Types

2 Product Description and Overview of Types2.1 General information

Power and torque The details on power and torque given in the catalog refer to mounting position M1 andsimilar mounting positions, where the input gear stage does not completely run underoil. In addition, the gearmotors are assumed to be standard versions with standardlubrication and under normal ambient conditions.Please note that the motor torques shown in the selection tables for gearmotors issubject to selection. However, the output torque for the desired output speed is essentialfor the application and needs to be checked.

Noise levels The noise levels of all SEW servo gearmotors and servomotors are well within themaximum permitted noise levels laid down by the VDI guideline 2159 for gear units andEN 60034 for motors.

Coating The servo gear units, synchronous servomotors and servo gearmotors from SEW-EURODRIVE will be coated as follows:

Special coatings are available on request.

Weights Please note that all weights shown in the catalog exclude the oil fill for the gearmotors.The weight varies according to gear unit design and gear unit size. The lubricant fill isdependent on the mounting position, and consequently it is impossible to make anygenerally valid statements. Please refer to "Lubricants" in the "Design and OperatingNotes" section for recommended lubricant fill quantities depending on the mountingposition. The exact weight is given in the order confirmation.

Heat dissipation and accessibility

Servo gearmotors and the brake can reach high surface temperatures > 100 °C duringoperation. Make sure to maintain adequate distance from heat-sensitive componentswhen installing gearmotors/brake motors to the driven machine. Please also refer to thenotes on the motor dimension sheets in this regard.

NOCO® fluid for protection against contact corrosion

As standard, all shaft-mounted gearmotors are supplied with NOCO® fluid, a paste thatprevents contact corrosion. Use this paste in accordance with the information in the gearunit operating instructions. It simplifies service work and removal of the unit.NOCO® fluid is food grade according to USDA-H1. You can tell that NOCO® fluid is afood grade oil by the USDA-H1 identification label on its packaging.

Type Coating

BSF../PSF.. servo gear units with adapter

black RAL 9005DS../CM.. synchronous servomotor

BSF../PSF.. servo gearmotor

(BSF.., PSF..) 9

2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

General informationProduct Description and Overview of Types

2

Brake motors On request, motors and gearmotors can be supplied with an integrated mechanicalbrake. The SEW-EURODRIVE brake is an electromagnetic disk brake with a DC coilthat releases electrically and brakes using spring force. The design principle means thebrake is applied if the power fails. This means it complies with fundamental safetyrequirements. The brake is activated by a brake control system housed either in thewiring space of the motor or in the control cabinet.A significant feature of the brakes is their very short length. The brake bearing end shieldis a part of both the motor and the brake. The integrated construction of the SEW-EURODRIVE brake motor permits particularly compact and sturdy solutions.

International markets

SEW-EURODRIVE is a member of the AGMA (American Gear Manufacturer�s Associ-ation), and as such, all its gear units and gearmotors conform to AGMA specifications.We supply motors for connection conditions according to CSA and NEMA standards onrequest (registered with UL).For the Japanese market, we offer motors conforming to JIS (Japan IndustrialStandard). Contact your sales representative to assist you in such cases.

10 (BSF.., PSF..)

2 Description of servo gear unitsProduct Description and Overview of Types

2.2 Description of servo gear units

General nformation

BSF.. helical-bevel servo gear units are two-stage gear units for applications in servotechnology. They consist of a helical gear stage at the input and an axially shiftedhelical-bevel gear stage at the output. The housings are made in one part and standardequipment includes B5 retaining flanges at the output. The BSF.. helical-bevel servogear units can be mounted to the foot or face side in an optional design. The gear unitsare available with four different output shaft designs.

The PSF.. planetary servo gear units are single and two-stage planetary gear units.They are used in servo technology applications as well. The housings come equippedwith B5 retaining flanges at the output as standard. The gear units are available with twodifferent output shaft designs.

Direct motor mounting

The new servo gearmotors from SEW-EURODRIVE make it possible to mount servogear units directly to the synchronous servomotors from SEW-EURODRIVE without anadapter. These integrated servo gearmotors offer shaft-hub connections that are allpositive and free from backlash.

Motor mounting Use the modular motor adapters to connect all other commercial servomotors in asimple and time-efficient manner to the servo gear units from SEW-EURODRIVE.

(BSF.., PSF..) 11

2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

Characteristics of the SEW-EURODRIVE servo gear unitsProduct Description and Overview of Types

2

2.3 Characteristics of the SEW-EURODRIVE servo gear units

Low backlash and positioning accuracy

The optimum gearing geometry paired with highest precision of the manufacturedcomponents and careful assembly make for low circumferential backlash. The BSF..helical-bevel servo gear units and the PSF.. planetary servo gear units ensure a lowcircumferential backlash even in their standard designs. The circumferential backlashcan be further reduced for all types and even minimized for PSF.. planetary servo gearunits. Circumferential backlash will remain constantly low for the entire gear unit life dueto the wear-free operating performance and high-endurance design of the runninggears.

Extensive ratio range with fine graduation

All ratios from i=3 to i=100 are integers and finely graduated. This means the gear unitsare particularly suited to applications in controllers in which it is important to havedivisible resolution values in terms of encoder increments.

Low noise All external gearing components are ground, which ensures low noise development inall speed ranges.

Reliability, longevity and low maintenance

The high reliability of servo gear units from SEW-EURODRIVE in the system is ensuredby the use of high-strength materials, high-quality anti-friction bearings, long-lived oilseals and synthetic lubricants.

High overload capacity

Exactly matched components as well as backlash-free and positively connected driveelements ensure that highest torques can be transferred and that large axial and radialforces can be absorbed.

Compact and lightweight structure

The high power density allows for integrating the gear stages in a compact, single-partand extremely solid cast housing of small dimensions.

Torsionally rigid The special design of SEW-EURODRIVE servo gear units in conjunction with large shaftdiameters ensures high torsional rigidity.

12 (BSF.., PSF..)

2 BSF.. helical-bevel servo gear unit types and optionsProduct Description and Overview of Types

2.4 BSF.. helical-bevel servo gear unit types and options

Types The following types of BSF.. helical-bevel servo gear units can be supplied:

BSF.. helical-bevel servo gear units with B5 output flange

Type Meaning

BSF.. Helical-bevel servo gear unit with solid shaft.

BSKF.. Helical-bevel servo gear unit with solid shaft and key.

BSBF.. Helical-bevel servo gear unit with flange block shaft to EN ISO 9409.

BSHF.. Helical-bevel servo gear unit with hollow shaft and shrink disc opposite the output end.

BSF..B helical-bevel servo gear units with foot and front threaded holes for mounting

Type Meaning

BSF..B Helical-bevel servo gear unit with solid shaft.

BSKF..B Helical-bevel servo gear unit with solid shaft and key.

BSBF..B Helical-bevel servo gear unit with flange block shaft to EN ISO 9409.

BSHF..B Helical-bevel servo gear unit with hollow shaft and shrink disc opposite the output end.

(BSF.., PSF..) 13

2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

BSF.. helical-bevel servo gear unit types and optionsProduct Description and Overview of Types

2

Options The following options are available for BSF.. helical-bevel servo gear units:

Gear ratios and circumferential backlash BSF..

Options for BSF.. helical-bevel servo gear units

Type Meaning

BSF.. / R Option for reduced circumferential backlash. This option applies to all types of helical-bevel servo gear units.

BSHF.. / THelical-bevel servo gear units with torque arm. This option only applies to BSHF.. helical-bevel servo gear units with shrink disc opposite the output end.

BSHF.. / IHelical-bevel servo gear units with hollow shaft and shrink disc on the output end. A torque arm is not available for the BSHF../I helical-bevel servo gear units.

BSF/BSKF/BSBF/BSHF gear units

Gear unit sizes

Torque class Gear ratio Circumferen-tial backlash

Circumferen-tial backlash

.../R

[Nm] Two-stage Standard [ � ] Reduced [ � ]

202 40 3,4,6,8,10,15,20,25

6 3

302 803,4,6,8,10,15,20,25,30

402 160

502 320 3,4,6,8,10,12,15,20,25,30,35

602 640 3,4,6,8,10,12,15,20,25,30,35,40

802 1500 4,6,8,10,12,15,20,25,30,35,40

14 (BSF.., PSF..)

2 BSF.. helical-bevel servo gear unit types and optionsProduct Description and Overview of Types

Example: Order code for BSBF.. helical-bevel servo gearmotors

A helical-bevel servo gearmotor with brake, manual brake, positive temperaturecoefficient thermistor and plug connector with a connection cross section of 1.5 mm2

has, for example, the following unit designation:

53145AXX

BSBF 302 /R CM 71S /BR /HR /TF /AS1H /SB60Plug connector for motor and brake, connec-tor housing with axial encoder cable entry

Motor option Hiperface multi-turn encoder

Positive temperature coefficient thermistor

Manual brake release

Brake

Motor size

Motor series

Option for all helical-bevel servo gear units: ../ R: Reduced circumferential backlash

Gear unit size: e.g. 302

Gear unit type:

BSF..BSKF..BSBF..BSHF..

BSF..BBSKF..BBSBF..BBSHF..B

(BSF.., PSF..) 15

2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

BSF.. helical-bevel servo gear unit types and optionsProduct Description and Overview of Types

2

Example:Nameplate for BSBF.. helical-bevel servo gearmotors

Key53598ADE

BME5230

CLPHC 100 API GL / 0,35 l

F6513i 3:1

V

IP

Hz

199 081 0.10

Isol.Kl.

Gleichrichter

Nm

Schmierstoff:

Bruchsal/Germany

Made in Germany

Permanentmagnet

IM

Getriebe r/min 1000kg

A

Nm

Nm

A

r/min

Bremse V

Nr.

M4A40013,203000150 3,305,0

13.1220774388.0001.13

BSBF302B/R CM71S/BR/HR/TF/AS1H/SB60

nN: Mo: Io: Imax:fN:

Rated speed [min-1]Rated torque [Nm]Rated current [A]Maximum permitted current [A]Rated frequency [Hz]

Umax:IM:IP:i:

Maximum permitted voltage [V]International mounting positionInternational enclosureGear ratio

Note!The nameplate of the BSBF.. helical-bevel servo gearmotor is attached to theservomotor!

16 (BSF.., PSF..)

2 BSF.. helical-bevel servo gear unit types and optionsProduct Description and Overview of Types

Example: Order code for BSHF.. helical-bevel servo gear units with EBH.. adapter

A helical-bevel servo gear unit with adapter has, for example, the following unitdesignation:

53711AXX

BSHF 502 /R /T EBH 07 /21 /13

Code for coupling bore

Code for flange geometry (centering, hole circle)

Code for performance class

Adapter for helical-bevel servo gear units

Options for BSHF.. helical-bevel servo gear units (shrink disc opposite output end): Option /T: Torque arm to be mounted on output end, not in combination with option /l.Option /I: Shrink disc seat on output end, not in combination with option /T.

Option for all helical-bevel servo gear units: .../ R: Reduced circumferential backlash

Gear unit size: e.g. 502

Gear unit type:

BSF..BSKF..BSBF..BSHF..

BSF..BBSKF..BBSBF..BBSHF..B

(BSF.., PSF..) 17

2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

BSF.. helical-bevel servo gear unit types and optionsProduct Description and Overview of Types

2

Example:Order code for EBH.. adapter for BSF.. helical-bevel servo gear units

An adapter has, for example, the following unit designation:

Example:Nameplate for BSHF.. helical-bevel servo gear units

Key

54521AXX

EBH 07 /21 /13Two-digit code for the shaft diameter of the servomotor to be mounted [2]

Two-digit code for the flange geometry (centering, hole circle) of the servomotor to be mounted [1]

Two-digit code for the performance class of the adapter

E: Designation of adapters for servo gear units B: Designation for BSF.. helical-bevel servo gear units H: Designation for the clamp coupling

1

2

53573ADE

na: Ma: FRa: ne max: Me max:

Output speed [min-1]Output torque at na [Nm] Overhung load gear unit at MB [N]Maximum input speed (S1 operation) [min-1]

Maximum input torque [Nm]

FRe:IM:

IP:

i:

Maximum input overhung loadInternational Mounting

International Protection

Gear ratio

18 (BSF.., PSF..)

2 PSF.. planetary servo gear unit types and optionsProduct Description and Overview of Types

2.5 PSF.. planetary servo gear unit types and options

Types The following types of PSF.. planetary servo gear units can be supplied:

Options The following options are available for PSF.. planetary servo gear units:

PSF.. planetary servo gear units with B5 output flange

Type Meaning

PSF.. Planetary servo gear unit with solid shaft

PSKF.. Planetary servo gear unit with solid shaft and key

PSBF.. Planetary servo gear unit with flange block shaft to EN ISO 9409

Options for PSF.. planetary servo gear units /PSKF.. /PSBF..

Type Meaning

PSF.. / R Option for reduced circumferential backlash. This option applies to all types of the planetary servo gear units.

PSF.. / M Option for minimized circumferential backlash. This option applies to all types of the planetary servo gear units.

(BSF.., PSF..) 19

2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

PSF.. planetary servo gear unit types and optionsProduct Description and Overview of Types

2

Gear ratios and circumferential backlash PSF.. PSF../PSKF.. single and two-stage gear units

Gear unit sizes

Torque class Gear ratio Circumferen-tial backlash

Circumferen-tial backlash

.../R

Circumferen-tial backlash

.../M

[Nm] Standard [ � ] Reduced [ � ] Minimized [ � ]

Single stage

121 25

3, 4, 5, 7, 10

8 4 2

221 55

6 3 1321 110

521 300

621 600

4, 5, 7, 10 4 2 1721 1000

821 1750

921 3000

Two-stage

122 25

16, 20, 25, 28, 35, 40, 49, 70, 100

10 6 3

222 55

8 4 2322 110

522 300

622 600

6 3 1722 1000

822 1750

922 3000

PSBF.. single and two-stage gear units

Gear unit sizes

Torque class Gear ratio Circumferen-tial backlash

Circumferen-tial backlash

.../R

Circumferen-tial backlash

.../M

[Nm] Standard [ � ] Reduced [ � ] Minimized [ � ]

Single stage

221 55

5, 7, 10

6 3

1

321 110

521 300

621 6004 2

821 1750

Two-stage

222 55 20, 25, 35, 49, 70, 100

8 4 2322 110 15, 20, 25, 35, 49, 70, 100522 300

622 600 20, 25, 35, 49, 70, 100 6 3 1

822 1750

Contact SEW-EURODRIVE for continuous duty and circumferential backlash less than1�.

20 (BSF.., PSF..)

2 PSF.. planetary servo gear unit types and optionsProduct Description and Overview of Types

Example: Order code for PSF.. planetary servo gear units

A planetary servo gearmotor with brake, manual brake, positive temperature coefficientthermistor and plug connector with a connection cross section of 1.5 mm2 has, forexample, the following unit designation:

54012AXX

PSF 321 /R CM 71S /BR /HR /TF /AS1H /SB60Plug connector for motor and brake, connec-tor housing with axial encoder cable entry

Motor option Hiperface® multi-turn encoder

Positive temperature coefficient thermistor

Manual brake release

Brake

Motor size

Motor series

Option for all planetary servo gear units:.../ R: Reduced circumferential backlash.../ M: Minimized circumferential backlash

Gear unit size: e.g. 321

Gear unit type:

PSF..PSKF..PSBF..

(BSF.., PSF..) 21

2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

PSF.. planetary servo gear unit types and optionsProduct Description and Overview of Types

2

Example: Nameplate for PSF.. planetary servo gearmotors

Key53969ADE

BME5-

230

CLP PG 220 / 0,07 l

F654,8i 5:1

f N

V

IP

Hz

Umax

199 081 0.10

Isol.Kl.

Gleichrichter

Nm I O

Imax

Schmierstoff:

Bruchsal/Germany

Made in Germany

Permanentmagnet

IM

Getriebe r/min 600kg

A

Nm

Nm

Ar/min

Bremse V

M O

n N

Nr.Typ

M440013,203000150 3,305,0

13.1220774388.0001.13PSBF321/R CM71S/BR/HR/TF/AS1H/SB60 IEC 343

nN: Mo: Io: Imax:fN:

Rated speed [min-1]Rated torque [Nm]Rated current [A]Maximum permitted current [A]Rated frequency [Hz]

Umax:IM:IP:i:

Maximum permitted voltage [V]International mounting positionInternational enclosureGear ratio

Note! The nameplate of the PSF.. planetary servo gearmotor is attached to the servomotor!

22 (BSF.., PSF..)

2 PSF.. planetary servo gear unit types and optionsProduct Description and Overview of Types

Example: Order code for PSF.. planetary servo gear units with EPH.. adapter

A planetary servo gear unit with adapter has, for example, the following unit designation:

54011AXX

PSF 521 /R EPH 07 /21 /13

Code for coupling bore

Code for flange geometry (centering, hole circle)

Code for performance class

Adapter for planetary servo gear units.

Option for all planetary servo gear units: .../ R: Reduced circumferential backlash.../ M: Minimized circumferential backlash

Gear unit size: e.g. 521

Gear unit type:

PSF..PSKF..PSBF..

(BSF.., PSF..) 23

2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

PSF.. planetary servo gear unit types and optionsProduct Description and Overview of Types

2

EPH.. adapter for PSF.. planetary servo gear units

Example:Nameplate on the PSF.. planetary servo gear unit

Key

53631AXX

EPH 07 /21 /13Two-digit code for the shaft diameter of the servomotor to be mounted [2]

Two-digit code for the flange geometry (centering, hole circle) of the servomotor to be mounted [1]

Two-digit code for the performance class of the adapter

E: Designation of adapters for servo gear units P: Designation for PSF.. planetary servo gear units H: Designation for the clamp coupling

1

2

53968ADE

na: Ma: FRa: ne max:

Me max:

Output speed [min-1]Output torque at na [Nm]Overhung load gear unit at MB [N]Maximum input speed (S1 operation) [min-1]

Maximum input torque [Nm]

FRe:IM:

IP:

i:

Maximum input overhung loadInternational Mounting International Protection

Gear ratio