Ball and Roller Bearings - Ntn-snr.com

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Four Row Tapered Roller Bearings C2 r r1 B2 D Da d da Sa d 8401 200.150mm Boundary dimensions Basic load ratings dynamic static dynamic static mm kN kgf 1 1 d D B 2 C 2 r 1s min r s min C r C or C r C or 840 863.600 938.212 950 1,200.150 1,170 840 840 6 6 21,900 76,500 2,230,000 7,800,000 1,130.300 669.925 669.925 4.8 12.7 15,800 59,500 1,610,000 6,050,000 1,219.200 876.300 889.000 4.8 12.7 24,100 83,000 2,450,000 8,450,000 1,270.000 825.500 825.500 4.8 12.7 22,500 80,000 2,300,000 8,150,000 1,360 880 880 4 7.5 27,000 89,000 2,750,000 9,050,000 1,593.850 990.600 990.600 4.8 12.7 33,500 132,000 3,400,000 13,500,000 1 Minimum allowable dimension for chamfer dimension r or r1. B-226
Four Row Tapered Roller Bearings Bearing numbers Abutment and fillet dimensions Mass mm kg d a D a S a approx. E-CRO-16803 897 1,099 12 3,970 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 6,130 Note: 1. Bearing numbers marked "" designate inch system bearings. 2. Bearing numbers marked "" designate bearing with hollow rollers and pin type cages. B-227
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For New Technology Network R corpor
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Warranty NTN warrants, to the origi
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TECHNICAL DATA CONTENTS 1. Classifi
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Classification and Characteristics
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Bearing Selection Select bearing’
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Bearing Selection 2.3 Selection of
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Load Rating and Life 3. Load Rating
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Load Rating and Life where, Lna : A
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Bearing Load Calculation 4. Bearing
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Bearing Load Calculation 4.1.2 Chai
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Bearing Load Calculation 4.4 Equiva
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Bearing Load Calculation 4.5 Allowa
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Bearing Load Calculation Fr2 70 K
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Boundary Dimensions and Bearing Num
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Boundary Dimensions and Bearing Num
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Bearing Tolerances Table 6.3 Tolera
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Bearing Tolerances 6.2 Chamfer meas
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Bearing Tolerances 6.3 Bearing tole
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Bearing Fits 7.3.2 Recommended Fits
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Bearing Fits Table 7.2 (3) Housing
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Bearing Fits Table 7.5 Numeric valu
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Bearing Fits Table 7.6 Fits for inc
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Bearing Internal Clearance and Prel
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Allowable Speed 9. Allowable Speed
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Lubrication 11. Lubrication 11.1 Lu
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Lubrication (1) Base oil Natural mi
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Lubrication 11.4 Solid grease (For
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Lubrication Bearing operating Lubri
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External bearing sealing devices 12
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External bearing sealing devices Ty
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Bearing Materials 13.2 Cage materia
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Shaft and Housing Design 14.2 Beari
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Bearing Handling 15. Bearing Handli
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Bearing Handling a) Installation on
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Bearing Handling 15.4 Post installa
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Bearing Handling Fig. 15.24 shows t
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Bearing Damage and Corrective Measu
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Technical Data Axial displacement m
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Technical Data 17.4 Fitting surface
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A-100
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INDEX OF BEARING TABLES Deep Groove
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Deep Groove Ball Bearings Open type
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Deep Groove Ball Bearings bearing i
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Deep Groove Ball Bearings D D1 rN r
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Deep Groove Ball Bearings Equivalen
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Expansion Compensating Bearings Da
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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 Bearings Angul
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Angular Contact Ball Bearings 2. St
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Single and Duplex Arrangements Db r
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High Speed Single and Duplex Arrang
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Ultra-High Speed Angular Contact Ba
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B-67
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Ceramic Ball Angular Contact Ball B
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Four-Point Contact Ball Bearings QJ
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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 Bearings B r ra
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Adapters (for self-aligning ball be
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Adapters (for self-aligning ball be
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Cylindrical Roller Bearings Cylindr
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Cylindrical Roller Bearings 2. Stan
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Cylindrical Roller Bearings ra r1a
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L Type Loose Rib B2 B2 r1 r1 B1 d d
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L Type Loose Rib B2 B2 r1 r1 B1 d d
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Multi-Row Cylindrical Roller Bearin
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Four-Row Cylindrical Roller Bearing
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Tapered Roller Bearings Table 1 (co
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Tapered Roller Bearings Inch Tapere
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Tapered Roller Bearings Inch Tapere
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Tapered Roller Bearings Metric syst
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Tapered Roller Bearings Inch system
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Page 278 and 279: Tapered Roller Bearings Inch system
Page 296 and 297: Multi-Row Tapered Roller Bearings O
Page 310 and 311: Multi-Row Tapered Roller Bearings I
Page 312 and 313: Multi-Row Tapered Roller Bearings I
Page 314 and 315: Four Row Tapered Roller Bearings C2
Page 331 and 332: Spherical Roller Bearings 1. Types,
Page 333 and 334: Spherical Roller Bearings 5. Adapte
Page 335 and 336: Spherical Roller Bearings ra Da ra
Page 355 and 356: Adapter (For spherical roller beari
Page 357 and 358: Adapter (For spherical roller beari
Page 359 and 360: Withdrawal Sleeves (For spherical r
Page 367 and 368: Double Row Angular Contact Thrust B
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Page 371 and 372: High Speed Duplex Angular Contact T
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Page 375 and 376: Self-Aligning Roller Thrust Bearing
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Self-Aligning Roller Thrust Bearing
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Locknuts, Lockwashers & Lockplates
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Locknuts Reference withdrawal sleev
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Locknuts Reference bore no. 3 locko
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Nuts Reference withdrawal sleeve no
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Lockwashers Series AW ƒ r2 B2 ƒ1
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Lockwashers Series AWL ƒ r2 B2 ƒ
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Catalog List & Appendix Table
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Catalog List CATALOG TITLES CATALOG
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Appendix Table SI-customary unit co
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