Bearing Installation and Handling - CWEA Installation Handling... · Bearing Installation ......

Post on 26-Mar-2018

226 views 1 download

Transcript of Bearing Installation and Handling - CWEA Installation Handling... · Bearing Installation ......

Bearing Installation Bearing Installation and Handling and Handling gg

[Presenter Name]

Timken Technical & Commercial Training

2

TopicsRemove BearingsRemove Bearings Install Bearings Lubrication Lubrication Handling and Storage

Bearing Handling and Maintenance – T60

3

The Importance of Proper InstallationEnsure safetyEnsure safety Simplify and speed the processMake full use the bearing’s load capacityMake full use the bearing s load capacity Get the longest possible bearing life

P t i f t i i th iPrevent rings from turning on or in their seats under load

Bearing Handling and Maintenance – T60

4

Safety Warning

Proper maintenance and h dli ti iti lhandling practices are critical.

Failure to follow installation instructions and to maintaininstructions and to maintain

proper lubrication can result in equipment failure creating a risk

f i b dil hof serious bodily harm.

Bearing Handling and Maintenance – T60

5

Start With a Clean Work AreaClean the work area of debris or dirt thatClean the work area of debris or dirt that

could find it’s way into the bearingWipe any surface where the bearing willWipe any surface where the bearing will

be placed to avoid contaminating the greaseg

Bearing Handling and Maintenance – T60

Removing BearingsRemoving Bearings

Timken Technical & Commercial Training

7

Remove BearingGuillotine pullerGuillotine puller

Bearing Handling and Maintenance – T60

8

Remove BearingGuillotine pullerGuillotine puller

Bearing Handling and Maintenance – T60

9

Remove BearingRotate cone by handRotate cone by hand

Bearing Handling and Maintenance – T60

10

Remove BearingManual driversManual drivers

Bearing Handling and Maintenance – T60

11

Remove BearingDrive bearing off the shaftDrive bearing off the shaft

Bearing Handling and Maintenance – T60

12

Remove BearingDrive bearing off the shaftDrive bearing off the shaft

Bearing Handling and Maintenance – T60

13

Remove BearingKeep your tools organizedKeep your tools organized

Bearing Handling and Maintenance – T60

14

Remove BearingPullersPullers

Bearing Handling and Maintenance – T60

15

Remove Bearing Puller with hydraulicPuller with hydraulic

assist

Bearing Handling and Maintenance – T60

16

Remove Bearing Maintain alignment:Maintain alignment:

Apply force to tight fitted member

Bearing Handling and Maintenance – T60

17

Clean BearingCleaning bearing componentsCleaning bearing components

Bearing Handling and Maintenance – T60

18

Clean BearingCleaning bearing componentsCleaning bearing components

Bearing Handling and Maintenance – T60

19

Clean BearingAlkali cleanersAlkali cleaners

– 2-3 ounces per gallon of heated water typical mixtureyp

KeroseneOther commercial cleaners / solvents

– Environmental friendly cleaners are available

Bearing Handling and Maintenance – T60

20

Clean BearingBlow solvent out of bearingBlow solvent out of bearing

Bearing Handling and Maintenance – T60

21

Clean Bearing

Warning!Never spin a bearing with compressed air. The rollers may be forcefully expelled creating a risk offorcefully expelled creating a risk of serious bodily harm.

Bearing Handling and Maintenance – T60

22

Inspecting BearingsVisual inspectionVisual inspection

Bearing Handling and Maintenance – T60

23

Inspecting BearingsChecking for spallsChecking for spalls

Bearing Handling and Maintenance – T60

24

Inspecting BearingsChecking for spallsChecking for spalls

Bearing Handling and Maintenance – T60Click for a closeup

25

Uneven Wear PatternsDo not mix new with used componentsDo not mix new with used components

Old CupOld Cup

New Cone

Original Wear

New Wear Pattern

O g a eaPattern

Bearing Handling and Maintenance – T60

Installing BearingsInstalling Bearings

Timken Technical & Commercial Training

27

Prepare for InstallationCheck for debrisCheck for debris

Bearing Handling and Maintenance – T60

28

Prepare for InstallationClean and wipe out gear caseClean and wipe out gear case

Bearing Handling and Maintenance – T60

29

Prepare for Installation Inspect and prepare the shaft Inspect and prepare the shaft

Bearing Handling and Maintenance – T60

30

Prepare for Installation Inspect and prepare the shaft Inspect and prepare the shaft

Bearing Handling and Maintenance – T60

31

Prepare for Installation Inspect and prepare the bearing seat Inspect and prepare the bearing seat

Bearing Handling and Maintenance – T60

32

Inspect and prepare the bearing seat

Prepare for Installation Inspect and prepare the bearing seat

Bearing Handling and Maintenance – T60

33

Inspect and prepare the bearing seat

Prepare for Installation Inspect and prepare the bearing seat

Bearing Handling and Maintenance – T60

TCK9

Slide 33

TCK9 The bearing is backwardsTim Kraft, 8/22/2006

34

Prepare for Installation Inspect and prepare the bearing seat Inspect and prepare the bearing seat

Bearing Handling and Maintenance – T60

35

Prepare for Installation Inspect and prepare the bearing seat Inspect and prepare the bearing seat

Bearing Handling and Maintenance – T60

36

Check DimensionsCheck housing boreCheck housing bore

Bearing Handling and Maintenance – T60

37

Check DimensionsCheck shaftCheck shaft

Bearing Handling and Maintenance – T60

38

Optional Section12 point Shaft & Housing12-point Shaft & Housing

Measurement Procedure

Click the bullet to view this section, click anywhere else to skip it.

Bearing Handling and Maintenance – T60

39

Bottom linePrecision bearings require proper supportPrecision bearings require proper supportShaft and housing condition is critical to

bearing system performancebearing system performanceRemember, a bearing is only as good as

the shaft it’s mounted on, and thethe shaft it s mounted on, and the housing it’s mounted in

Bearing Handling and Maintenance – T60

40

Check Shaft Shoulder Fillet Radius

Bearing Handling and Maintenance – T60

41

Check Shaft Shoulder Fillet Radius

Bearing Handling and Maintenance – T60

42

Shaft Fillet & Shoulder DiameterShaft Fillet & Shoulder Diameter

Shaft fillet diameter too large

Shoulder diameter too small

Bearing Handling and Maintenance – T60

Shoulder diameter too large

Correct shaft shoulder diameter and fillet

43

Install the Bearing Pregrease sealPregrease seal

Bearing Handling and Maintenance – T60

44

Install the BearingDriversDrivers

Cup (Outer Ring) Drivers

Cone (Inner Ring) Driver

Bearing Handling and Maintenance – T60

45

Install the BearingPress bearings in through the facePress bearings in through the face

Bearing Handling and Maintenance – T60

46

Install the BearingDrive the bearing onDrive the bearing on

Bearing Handling and Maintenance – T60

47

Install the BearingDrive the bearing onDrive the bearing on

Bearing Handling and Maintenance – T60

48

Heat / Chill BearingsFreeze tight fittingFreeze tight fitting

outer rings to help installation in housinggChill limits (lowest)

• Standard product:• Standard product:-65°F (-54°C)Use dry ice in alcohol bath

• Precision product: -20°F (-29°C)Use freezer

Bearing Handling and Maintenance – T60

49

Heat / Chill BearingsHeat or chill bearingsHeat or chill bearings

to ease installationsHeat limits (maximums)Heat limits (maximums)

• Standard product, metallic cage, no seals:200°F (93°C) for 24 hours 250°F (121°C) for 8 hours

• Standard product, nonmetallic cage and polymer or elastomer seals:polymer or elastomer seals: 200°F (93°C) 24 hours

• Precision product:

Bearing Handling and Maintenance – T60

p150°F (66°C) 24 hours

50

Heating BearingsOil bath methodOil bath method

– Temperature: < 250°F – Duration: varies according to sizeDuration: varies according to size– 15 minutes to two hours soak time

Non-conductive Bearing Support BlockHigh Flash

Point Oil

Flame Burner

Bearing Held From Bottom By Screen

Bearing Handling and Maintenance – T60

51

Heating BearingsHeating lampHeating lamp

Bearing Handling and Maintenance – T60

52

Heating Bearings Induction Heating Induction Heating

Bearing Handling and Maintenance – T60

53

Heating Bearings Induction Heater Induction Heater

Bearing Handling and Maintenance – T60

54

Heating BearingsAvoid using a torchAvoid using a torch

to heat bearings

Bearing Handling and Maintenance – T60

55

Heating BearingsHandling hot bearingHandling hot bearing

Bearing Handling and Maintenance – T60

56

Heating BearingsHandling hot bearingHandling hot bearing

Bearing Handling and Maintenance – T60

57

Heating BearingsHold bearing in position while coolingHold bearing in position while cooling

Bearing Handling and Maintenance – T60

58

Heating BearingsCooling bearingCooling bearing

Bearing Handling and Maintenance – T60

59

Protect the Bearing

Bearing Handling and Maintenance – T60

60

Check Fit 0 002” ( 05 mm) shim stock / feeler gage 0.002 (.05 mm) shim stock / feeler gage

Bearing Handling and Maintenance – T60

61

Check Fit 0 002” ( 05 mm) shim stock / feeler gage 0.002 (.05 mm) shim stock / feeler gage

Bearing Handling and Maintenance – T60

62

Check Fit 0 002” ( 05 mm) shim stock / feeler gage 0.002 (.05 mm) shim stock / feeler gage

Bearing Handling and Maintenance – T60

63

Check Fit 0 002” ( 05 mm) shim stock / feeler gage 0.002 (.05 mm) shim stock / feeler gage

Bearing Handling and Maintenance – T60

Lubricating BearingsLubricating Bearings

Timken Technical & Commercial Training

65

LubricationThe lubricant reduces friction betweenThe lubricant reduces friction between

mating surfacesHelps to keep the bearings and theHelps to keep the bearings, and the

equipment, running coolerProtects bearingsProtects bearings

from debris and corrosion.

Bearing Handling and Maintenance – T60

66

LubricationSelect the right type and grade of greaseSelect the right type and grade of greaseWhen regreasing, ensure that the new

grease is compatible with the existinggrease is compatible with the existing grease in the bearing

Bearing Handling and Maintenance – T60

67

LubricationPlace grease in your hand and work itPlace grease in your hand and work it

through the rolling elements

Bearing Handling and Maintenance – T60

68

Lubricating the BearingMechanical grease packersMechanical grease packers

Bearing Handling and Maintenance – T60

69

Lubricating the BearingMechanical grease packersMechanical grease packers

Bearing Handling and Maintenance – T60

70

Lubricating the Bearing: Grease Fill Do not overgrease!Do not overgrease!

– Fill roller bearings from 1/3 to 2/3 of their free volume

Over-lubricated and 100

Over-lubricated or incorrectly lubricated

incorrectly lubricated

50

Tem

p C

Proper lubrication

0

lubrication

Bearing Handling and Maintenance – T60

Time

71

Install the Bearing

Bearing Handling and Maintenance – T60

72

Install the Bearing

Bearing Handling and Maintenance – T60

73

Install the Bearing Ensure bearing isEnsure bearing is

flush with shaft shoulder

Bearing Handling and Maintenance – T60

.002” feeler gage

Storing BearingsStoring Bearings

Timken Technical & Commercial Training

75

Protecting the Bearings

Bearing Handling and Maintenance – T60

76

Storing Bearings

Bearing Handling and Maintenance – T60

Bearing AdjustmentBearing Adjustment

Timken Technical & Commercial Training

78

Adjusting Bearings Some bearings areSome bearings are

“adjustable” … the distance between the rolling l t d

Tapered Rollerelements and raceways

can be set during installation

Roller Bearing

For non-adjustable bearings, you can slightly modify the rollingmodify the rolling element/raceway clearance through an interference fit

Ball Bearing

Bearing Handling and Maintenance – T60

79

Shaft and Housing Dimensions SizeSize

– OD tolerance

Roundness– One-half OD

tolerance

StraightnessStraightness– One-half OD

tolerance

Bearing Handling and Maintenance – T60

80

Ensure Proper Shaft Tolerances

Bearing Handling and Maintenance – T60

81

Proper Shaft and Housing ConditionsProvide bearing supportProvide bearing support

– Effective capacityPrevent relative motionPrevent relative motion

– Holding torqueMinimize component frettingMinimize component fretting

– Limit wear Improve machine operationImprove machine operation

– Limit runout / vibration

Bearing Handling and Maintenance – T60

82

Important Shaft and Housing AttributesSizeSize

– Average diameterFormForm

– Roundness, straightness (taper)Surface roughnessSurface roughness

– Topography

Bearing Handling and Maintenance – T60

83

Surface Finish Requirements

ShaftStraight Tapered

63 rms 50 rms

Fixed FloatHousing

125 rms 63 rms

Bearing Handling and Maintenance – T60

84

Roundness and StraightnessRoundness and StraightnessTolerance RequirementsRoundness equals one half of sizeRoundness equals one half of size

tolerance 80% conformity required80% conformity required

Bearing Handling and Maintenance – T60

85

Correct Shaft Mounting Equal supportEqual support

– minimum 80% conformity

Effective holding torque Minimal fretting

Bearing Handling and Maintenance – T60

86

Stepped Shaft Installation Uneven supportUneven support High wear potential Exaggerated loadinggg g Inner ring axial bending Reduced holding torque

Bearing Handling and Maintenance – T60

87

Bowed Shaft Installation Uneven supportUneven support Exaggerated loading Inner ring axial bendingg g Reduced holding torque

Bearing Handling and Maintenance – T60

88

Hollow Shaft Installation Exaggerated loadingExaggerated loading Inner ring axial bending Extreme uneven supportpp Reduced holding torque

Bearing Handling and Maintenance – T60

89

Tapered Shaft Installation Exaggerated loadingExaggerated loading Inner ring axial bending Uneven supportpp Reduced holding torque

Bearing Handling and Maintenance – T60

90

Irregular Shaft Installation Exaggerated loadingExaggerated loading Uneven support Limited holding torqueg q High wear potential

Bearing Handling and Maintenance – T60

91

Optional TopicsTapered Bearing AdjustmentTapered Bearing Adjustment

Multiple-Row Spacer Bearing Adjustment

TDO Bearing Measurement

Click a bullet item to jump to that section of the presentation, click anywhere else for the next slide.

Bearing Handling and Maintenance – T60

Bearing Installation Bearing Installation and Handling and Handling gg

Timken Technical & Commercial Training

Optional ContentOptional Content

Timken Technical & Commercial Training

94

Roller Scoring

Bearing Handling and Maintenance – T60

1212--point Shaft point Shaft and Housingand Housingand Housing and Housing Measurement Measurement ProcedureProcedure

Timken Technical & Commercial Training

ProcedureProcedure

96

12-Point Process Requirements Clean environmentClean environment

Calculation data sheet

Precision straight-edge sine bar Precision straight-edge, sine bar

Application shaft size and tolerance

Application housing size and tolerance Application housing size and tolerance

Two-point diameter gages accurate to .0001” (.003 mm)( )

Bearing Handling and Maintenance – T60

97

Select three measurement planes todefine bearing housing / shaft contactdefine bearing housing / shaft contact

Plane B

Plane C

Plane A

Plane B

Bearing Handling and Maintenance – T60

98

Identify four angular positions within each plane for diameter measurementeach plane for diameter measurement

0º45º

90º

135º135

0º 45º

90º

Bearing Handling and Maintenance – T60

135º

99

12-Point Measurement Worksheet

Application : Machine : #1Press roll

Measured by : Ken Holmes Date : 2/2/04

Maximum 12.6023 (in.) Maximum 22.8379 (in.)Bore = 12.5984 (in.) Minimum 12.6008 (in.) Minimum 22.8351 (in.)O.D. = 22.8346 (in.) Tolerance 0.0015 (in.) Tolerance 0.0028 (in.)Width = 8.1890 (in.) Form 0.00075 (in.) Form 0.00140 (in.)

23264YMBW507C08Bearing Shaft Housing

SHAFTSIZE

Plane Average Round Taper0� 45� 90� 135� (in.) (in.) Planes (in.)

A 12.6008 12.6012 12.6020 12.6015 12.6014 0.00120 A-B 0.00097

B 12 6018 12 6030 12 6023 12 6023 12 6024 0 00120 B C 0 00217

Angular Measurement FORM

B 12.6018 12.6030 12.6023 12.6023 12.6024 0.00120 B-C 0.00217

C 12.5995 12.6002 12.6008 12.6002 12.6002 0.00130 A-C 0.00120

HOUSINGSIZE

Plane Average Round Taper0� 45� 90� 135� (in.) (in.) Planes (in.)

Angular Measurement FORM

A 22.8356 22.837 22.8360 22.8364 22.8363 0.00140 A-B 0.00115

B 22.8346 22.8356 22.8352 22.8350 22.8351 0.00100 B-C 0.00303

C 22.8376 22.8384 22.8381 22.8384 22.8381 0.00080 A-C 0.00187The red-shaded range identifies the out-of-tolerance condition.

Bearing Handling and Maintenance – T60

100

Confirm surface topographyConfirm surface topography across bearing seat

Bearing Handling and Maintenance – T60

101

Prussian blue and precision straight edge or sine bar confirmsstraight edge or sine bar confirms surface topography

Check in angular planes

80% conformity required80% co o y equ ed

Bearing Handling and Maintenance – T60

Click anywhere toreturn to the presentation

Tapered Roller Bearing Tapered Roller Bearing Adjustment Adjustment jj

Timken Technical & Commercial Training

103

Tapered Bearing AdjustmentH i

Internal Axial Cl E d l

Housing

Clearance: Endplay

Bearing Handling and Maintenance – T60

Shaft

104

Bearing Adjustment

Bearing Handling and Maintenance – T60

105

Bearing Adjustment

Clearance

End Play ( Shaft Movement

Relative to Housing)

Seated Bearing

Position 1Position 1Right BearingSeated

Position 2Left Bearing Seated

UnseatedBearing

Bearing Handling and Maintenance – T60

Seated

106

Bearing Adjustment

SeatedBearing

SeatedBearing

N Sh ft

NoClearance

No Clearance

No Shaft Movement

Bearing Handling and Maintenance – T60

107

Bearing Adjustment

No internal axial

Housing

Line-to-Line ContactNo internal axial

clearance: PreloadContact

Sh ft

Bearing Handling and Maintenance – T60

Shaft

108

Bearing AdjustmentRemoveShi T

Remove Shims To Shims To

CompressThe System

Shims To Compress

The System

Bearing Handling and Maintenance – T60

109

Bearing Adjustment

Load exerted by

housingLoad

Exertedb gby

Housing

Bearing Handling and Maintenance – T60

110

Bearing Adjustment

Internal Clearance

Zero Cl

Preload Excessive P l dClearance

(Endplay) Clearance Preload

Bearing Handling and Maintenance – T60

111

Bearing Adjustmente

Relative LifeVs.

Operating Bearing

Incr

ease

Operating BearingSettings

ive

Life

IR

elat

Bearing Handling and Maintenance – T60

Preload Endplay

112

BearingBearing Adjustment Using a dialUsing a dial

indicator while pushing / pulling th b ithe bearing

Bearing Handling and Maintenance – T60

113

Bearing AdjustmentNeed to oscillate the bearing so theNeed to oscillate the bearing so the

rollers climb the taper and fully seat against the large ribg g

Bearing Handling and Maintenance – T60

114

Bearing AdjustmentUse torque wrench to check rolling torqueUse torque wrench to check rolling torque

Bearing Handling and Maintenance – T60

115

Bearing Adjustment

Pull (pounds)

Gear radius (inches) X Pull pounds)

Bearing Handling and Maintenance – T60

Torque ((inch/pounds)

116Click anywhere toreturn to the presentation

Bearing Adjustment

Bearing Handling and Maintenance – T60

MultipleMultiple--Row Row Spacer Bearings Spacer Bearings p gp g

Timken Technical & Commercial Training

118

Multiple-Row Bearings

TDI

Bearing Handling and Maintenance – T60

TDO

119

Multiple-Row Bearing ApplicationsUsually mounted with tight fitted conesUsually mounted with tight fitted cones

on rotating shafts– Where cones can be loose fitted, may wantWhere cones can be loose fitted, may want

to use a TDI at one position (can use TDO at other)

One bearing commonly "fixed" and one "float“

Click to learn more about fixed

Bearing Handling and Maintenance – T60

Click to learn more about fixed and float bearings

120

Preset AssembliesSpacer bearingsSpacer bearings

– Bench Endplay or Bench Preload, the endplay or preload measured on the bench p y pin manufacturing facility

Bearing Handling and Maintenance – T60

121

Preset AssembliesSpacer bearingsSpacer bearings

– Components are not interchangeable– Components are supplied as "matched"Components are supplied as matched

assemblies– Identified by cone part

b & bl * bnumber & assembly* number

* Not inscribed on the bearing

Bearing Handling and Maintenance – T60

122

Preset AssembliesSpacer bearingSpacer bearing

assembly number

5 6 6 9 0 2 A 1

Class *Sequential numberCone

number

Indicates Assembly

Various Meanings (county, etc.)

Bearing Handling and Maintenance – T60

* For bearings made after mid 1990s only. Prior to that, a random number.

123

Preset AssembliesSpacer bearingSpacer bearing

566 - 902A2– (2) 566 cones TDO(2) 566 cones– (1) 563D cup– (1) X2S-566 cone spacer

TDO

– Bench endplay (BEP) = 0.008” (0.20mm)– Inspection = 20024

Bearing Handling and Maintenance – T60

124

Preset AssembliesSpacer bearingSpacer bearing

566 - 902A1– Same components and TDOSame components and

inspection– Bench preload (BPL) = 0.001” (0.03 mm)

TDO

Bearing Handling and Maintenance – T60

125

Measuring Bench Endplay / Preload Preset Assemblies Spacer BearingsPreset Assemblies - Spacer Bearings1. Measure bearing on bench

(drop method): B = (AB + CB) AC(drop method): B = (AB + CB) - AC

566 902A2

Bearing Handling and Maintenance – T60

566 - 902A2

126

Measuring Bench Endplay / Preload Preset Assemblies Spacer BearingsPreset Assemblies - Spacer Bearings2. Determine spacer length

Bearing Handling and Maintenance – T60

127

Measuring Bench Endplay / Preload Preset Assemblies Spacer BearingsPreset Assemblies - Spacer Bearings3. Mark assembly components with serial

numbernumber

Bearing Handling and Maintenance – T60

128

Mounted Setting Endplay or preload in a mounted bearingEndplay or preload in a mounted bearing

as a result of changes in lateral due to tight cone or cup fits, or bothg p ,

Bearing Handling and Maintenance – T60

129

Operating SettingAmount of endplay or preload in aAmount of endplay or preload in a

bearing system at operating conditions

Bearing Handling and Maintenance – T60

130Click anywhere toreturn to the presentation

Bench End PlayEstablish Bench End PlayEstablish Bench End Play

– Chosen for desired performance

Operating Setting = BEP - -

lateral loss due to thermal

changes

lateral loss due to fits

changes

Bearing Handling and Maintenance – T60

131Click anywhere toreturn to the presentation

Fixed/Float Bearings

Fixed Bearing Float Bearing

Restrained from axial movement

Able to move or “float” axially

Bearing Handling and Maintenance – T60

axial movement float axially

132

25 years later, I can finally stop looking atfinally stop looking at

this bearing!

Bob Roseman

Bearing Handling and Maintenance – T60