Ball and Roller Bearings

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Bearing TolerancesTable 6.6 Tolerance of tapered roller bearings of J series (Metric series)Table 6.6 (1) Inner ringsNominalborediameter1018305080120180dmm183050801201802500000000ClassK-12-12-12-15-20-25-30Mean bore diameter deviation0000000ClassN-12-12-12-15-20-25-30!dmp0000000ClassC-7-8-10-12-15-18-220000000-5-6-8-9-10-13-15Bore diameter variation1212121520253012121215202530Vdp4445556333333499911151923Mean bore diametervariationover incl. high low high low high low high low max maxNote: Please consult NTN Engineering for Class A bearings.ClassBClassKClassNClassCClassBClassKClassN99911151923VdmpClassC5555555ClassB4455578Table 6.6 (2) Outer ringsNominaloutsidediameter18305080120150180250315Dmm305080120150180250315400000000000ClassKover incl. high low-12-14-16-18-20-25-30-35-40Mean outside diameter deviationhigh000000000Class-12-14-16-18-20-25-30-35-40!DmpNote: Please consult NTN Engineering for Class A bearings.Nlowhigh000000000ClassClow-8-9-11-13-15-18-20-25-28000000000ClassB-6-7-9-10-11-13-15-18-20ClassK121416182025303540Outside diametervariationClassN121416182025303540VDphigh low maxClassC4445556810ClassB333333455ClassK91112141519232630Mean outsidediameter variationClassN91112141519232630VDmpmaxClassC556789101314ClassB4555678910outer ringaxial runoutSeaClassBmax334445666Table 6.6 (3) Effective width of inner and outer ringsNominalborediameterdmm Effective width deviation of roller and inner ringassembly of tapered roller bearingClassKClassN!T1sClassCClassover incl. high low high low high low high low high low high low high low high lowB Tapered roller bearing outer ring effective width deviationClassKClassN!T2sClassCClassBUnitm108012080120180+100+100+1500-100-150+50+50+50000+100+100+100-100-100-100+100+100+2000-100-100+50+50+100000+100+100+100-100-100-150180250+150-150+500+100-150+200-100+1000+100-150Note 1: " " mark are to be manufactured only for combined bearings.2: Please consult NTN Engineering for Class A bearings.A-42
Bearing TolerancesInner ringaxial runoutSiaClassB3444578+200+200+200+200+200+350+350ClassKOverall width deviation of assembledtapered roller bearing 0000-200-250-250+100+100+100+100+100+150+150ClassNmax sup inf sup inf sup inf sup inf0000000!Ts+200+200+200+200+200+350+350ClassC-200-200-200-200-200-250-300+200+200+200+200+200+200+200UnitmClassB-200-200-200-200-200-250-300Table 6.6 (4) Radial runout of inner and outer ringsNominaloutsidediameter18305080120150180250315Dmmover incl.305080120150180250315400182025354045506070182025354045506070566678101113UnitmInner ring radial runoutKia andOuter ring radial runoutKeaClassClassClassClassK N C BmaxNote: Please consult NTN Engineering for Class A bearings.334444555TMaster cupsub-unitTMaster conesub-unitddA-43
Page 1 and 2: For New Technology NetworkRcorporat
Page 3 and 4: WarrantyNTN warrants, to the origin
Page 5 and 6: TECHNICAL DATA CONTENTS1. Classific
Page 7 and 8: Classification and Characteristics
Page 15 and 16: Bearing SelectionSelect bearing’s
Page 17 and 18: Bearing Selection2.3 Selection of b
Page 19: Load Rating and Life3. Load Rating
Page 22 and 23: Load Rating and LifeThe basic stati
Page 24 and 25: Bearing Load CalculationTable 4.2 G
Page 26 and 27: Bearing Load Calculation4.3 Mean lo
Page 28 and 29: Bearing Load CalculationTable 4.5 B
Page 30 and 31: Bearing Load Calculation(Example 4)
Page 32 and 33: Boundary Dimensions and Bearing Num
Page 34 and 35: Boundary Dimensions and Bearing Num
Page 37 and 38: Bearing Tolerances6. Bearing Tolera
Page 39 and 40: Bearing TolerancesMean bore diamete
Page 41 and 42: Bearing TolerancesUnitmInner ringax
Page 43: Bearing TolerancesTMaster cupsub-un
Page 47 and 48: Bearing TolerancesTable 6.8 Toleran
Page 49 and 50: Bearing Tolerances!d!d2ddd+!dd+!dBT
Page 51 and 52: Bearing Fits7. Bearing Fits7.1 Fitt
Page 53 and 54: Bearing Fits(4) A particular type o
Page 55 and 56: Bearing FitsTable 7.3 Standard fits
Page 57 and 58: Bearing FitsA-5512T12.5T13.5T16.5T2
Page 59 and 60: Bearing FitsTable 7.7 General fitti
Page 61 and 62: Bearing Internal Clearance and Prel
Page 63 and 64: Nominal bore diameterdmm10241024303
Page 73 and 74: Friction and Temperature Rise10. Fr
Page 75 and 76: Lubricationviscosity base oil are b
Page 77 and 78: LubricationAluminum greaseAI soapNo
Page 79 and 80: Lubrication11.5 Oil lubricationOil
Page 81 and 82: LubricationTable 11.9 Factor KExpel
Page 83 and 84: External bearing sealing devicesTyp
Page 85 and 86: Bearing Materials13. Bearing Materi
Page 87 and 88: Shaft and Housing Design14. Shaft a
Page 89 and 90: Shaft and Housing Design14.2.3 Thru
Page 91 and 92: Bearing Handling280280Diametric exp
Page 93 and 94: Bearing HandlingTable 15.1 Installa
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Bearing HandlingLarge bearings, ins
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A-95
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Bearing Damage and Corrective Measu
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Bearing Damage and Corrective Measu
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Technical DataThis data is based on
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Technical Data17.5 Fitting surface
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Ball and Roller Bearings
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Tapered Roller Bearings !!!!!!!!!!!
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!Deep Groove Ball Bearings2. Standa
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Deep Groove Ball BearingsBrrDdd Op
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Deep Groove Ball Bearingsd Boundar
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Deep Groove Ball BearingsBrrarraDdD
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Expansion Compensating BearingsBrrD
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AC BearingsBrrDdd Open typeShielde
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!Miniature and Extra Small Bearings
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!Miniature and Extra Small Bearings
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Miniature and Extra Small Ball Bear
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Angular Contact Ball Bearings1.2 Fo
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Single and Duplex Angular Contact B
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Four-Point Contact Ball BearingsQJ
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Double Row Angular Contact Ball Bea
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Double Row Angular Contact Ball Bea
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Self-Aligning Ball Bearings1. Desig
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Self-Aligning Ball BearingsEquivale
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Adapters(for self-aligning ball bea
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AdaptersB-75
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Cylindrical Roller BearingsTable 2
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Cylindrical Roller BearingsBBrr1rr1
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L Type Loose RibL type collar ringB
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L Type Loose RibL type collar ringB
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Double Row Cylindrical Roller Beari
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Four-Row Cylindrical Roller Bearing
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Tapered Roller BearingsSingle row t
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Tapered Roller Bearings5. ECO-Top t
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Tapered Roller BearingsInch series
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Tapered Roller BearingsSaSbr1aEquiv
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Tapered Roller BearingsDa dbr1arada
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Tapered Roller Bearingsr1araEquival
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Double Row Tapered Roller BearingsS
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Four Row Tapered Roller BearingsBea
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Spherical Roller Bearings2. Standar
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Spherical Roller BearingsBrrDddCyli
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Adapter(For spherical roller bearin
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Withdrawal Sleeves(For spherical ro
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Thrust BearingsSingle direction thr
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Thrust BearingsB-257
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Single Direction Thrust Ball Bearin
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Single Direction Thrust Ball Bearin
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Spherical Roller Thrust Bearingsdar
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Locknuts, Lockwashers& Lockplates
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LocknutsReferencewithdrawal sleeve
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LocknutsReferencebore no. lock- Sh
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Locknutsr1gbhsrB30˚ Gd2dPd6d1Beari
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NutsReferencewithdrawal sleeve no.A
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LockwashersSeries AWƒ25˚r2B2ƒ1B1
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LockwashersSeries AWLƒ25˚r2B2ƒ1B
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Snap rings and grooves for rolling
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Snap rings and grooves for rolling
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Catalog List and Appendix Table Con
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Catalog ListCATALOG TITLESCATALOG N
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D-41234567890001020304/2205/2806/32
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Appendix TableAppendix table 2: Com
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Appendix TableAppendix table 5: Dim
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Appendix TableAppendix table 6: Dim
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Appendix TableAppendix table 7: Bas
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Appendix TableAppendix table 9: Kgf
Page 410 and 411:
D-16Rockwell hardnessBrinell hardne
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Ball and Roller Bearings

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