Ball and Roller Bearings

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Four Row Tapered Roller BearingsC2rr1B2D DaddaSad Boundary dimensionsBasic load ratingsdynamic static dynamic staticmm kN kgfd D B2 C2 r1s min rs min Cr Cor Cr Cor863.600938.2129501 200.1501 130.300 669.925 669.925 4.8 12.7 15 800 59 500 1 610 000 6 050 0001 219.200 876.300 889.000 4.8 12.7 24 100 83 000 2 450 000 8 450 0001 270.000 825.500 825.500 4.8 12.7 22 500 80 000 2 300 000 8 150 0001 360 880 880 4 7.5 27 000 89 000 2 750 000 9 050 0001 593.850 990.600 990.600 4.8 12.7 33 500 132 000 3 400 000 13 500 000Minimum allowable dimension for chamfer dimension r or r1.B-216
Four Row Tapered Roller BearingsBearing numbers Abutment and fillet dimensions Massmmkgda Da Sa (approx.) E-LM286249D/LM286210/LM286210DG2 906 1 065 11 1 950 E-EE547341D/547480/547481DG2 918 1 135 6.5 3 640 E-LM287649D/LM287610/LM287610DG2 990 1 190 10 4 100 E-CRO-19001 1 030 1 278 12 4 100 E-LM288949D/LM288910/LM288910DG2 1 260 1 500 13 6 130Note: 1. Bearing numbers marked " " designate inch series bearings.2. Bearing numbers marked " " designate bearing with hollow rollers and pin type cages.B-217
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For New Technology NetworkRcorporat
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WarrantyNTN warrants, to the origin
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TECHNICAL DATA CONTENTS1. Classific
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Classification and Characteristics
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Bearing SelectionSelect bearing’s
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Bearing Selection2.3 Selection of b
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Load Rating and Life3. Load Rating
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Load Rating and LifeThe basic stati
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Bearing Load CalculationTable 4.2 G
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Bearing Load Calculation4.3 Mean lo
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Bearing Load CalculationTable 4.5 B
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Bearing Load Calculation(Example 4)
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Boundary Dimensions and Bearing Num
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Boundary Dimensions and Bearing Num
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Bearing Tolerances6. Bearing Tolera
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Bearing TolerancesMean bore diamete
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Bearing TolerancesUnitmInner ringax
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Bearing TolerancesTMaster cupsub-un
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Bearing TolerancesInner ringaxial r
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Bearing TolerancesTable 6.8 Toleran
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Bearing Tolerances!d!d2ddd+!dd+!dBT
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Bearing Fits7. Bearing Fits7.1 Fitt
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Bearing Fits(4) A particular type o
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Bearing FitsTable 7.3 Standard fits
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Bearing FitsA-5512T12.5T13.5T16.5T2
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Bearing FitsTable 7.7 General fitti
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Bearing Internal Clearance and Prel
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Nominal bore diameterdmm10241024303
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Friction and Temperature Rise10. Fr
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Lubricationviscosity base oil are b
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LubricationAluminum greaseAI soapNo
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Lubrication11.5 Oil lubricationOil
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LubricationTable 11.9 Factor KExpel
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External bearing sealing devicesTyp
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Bearing Materials13. Bearing Materi
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Shaft and Housing Design14. Shaft a
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Shaft and Housing Design14.2.3 Thru
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Bearing Handling280280Diametric exp
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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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Page 271 and 272: Tapered Roller BearingsDa dbr1arada
Page 291 and 292: Double Row Tapered Roller BearingsS
Page 309 and 310: Four Row Tapered Roller BearingsBea
Page 321: Four Row Tapered Roller BearingsBea
Page 326 and 327: Spherical Roller Bearings2. Standar
Page 328 and 329: Spherical Roller BearingsBrrDddCyli
Page 348 and 349: Adapter(For spherical roller bearin
Page 354 and 355: Withdrawal Sleeves(For spherical ro
Page 361 and 362: Thrust BearingsSingle direction thr
Page 363 and 364: Thrust BearingsB-257
Page 365 and 366: Single Direction Thrust Ball Bearin
Page 367 and 368: Single Direction Thrust Ball Bearin
Page 369 and 370: Spherical Roller Thrust Bearingsdar
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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
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D-16Rockwell hardnessBrinell hardne
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