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 368.300447.675mm 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 368.300 374.650 380 384.175 385.762 393.700 395 400 406.400 409.575 415.925 420 431.800 432.003 440 447.675 523.875 382.588 382.588 3.3 6.4 4,450 13,100 455,000 1,330,000 501.650 250.825 260.350 1.5 3.3 2,360 6,250 241,000 640,000 536 390 390 6 5 4,900 14,100 500,000 1,440,000 560 285 285 5 5 3,250 7,700 330,000 785,000 546.100 400.050 400.050 3.3 6.4 5,400 16,100 550,000 1,640,000 514.350 317.500 317.500 3.3 3.3 3,650 11,100 370,000 1,130,000 546.100 288.925 288.925 1.5 6.4 3,200 10,200 325,000 1,040,000 545 268.7 288.7 4 7.5 2,970 8,650 305,000 880,000 560 380 380 5 5 4,800 14,100 490,000 1,440,000 564 412 412 6 5 4,850 14,700 495,000 1,500,000 546.100 288.925 288.925 1.5 6.4 3,200 10,200 325,000 1,040,000 590.550 400.050 400.050 3.3 6.4 4,850 13,600 490,000 1,380,000 609.600 309.562 317.500 3.5 6.4 3,700 9,600 380,000 980,000 546.100 334.962 334.962 1.5 6.4 4,100 12,700 415,000 1,290,000 590.550 434.975 434.975 3.3 6.4 6,300 18,900 640,000 1,930,000 592 432 432 6 5 5,350 16,300 545,000 1,660,000 650 460 460 5 5 6,950 18,300 710,000 1,870,000 571.500 279.400 279.400 1.5 3.3 3,050 9,300 315,000 950,000 571.500 336.550 336.550 1.5 6.4 3,700 11,800 380,000 1,200,000 609.524 317.500 317.500 3.5 6.4 4,350 11,500 445,000 1,170,000 620 454 454 6 6 6,500 19,900 665,000 2,030,000 650 355 355 4 7.5 5,350 13,400 545,000 1,370,000 650 460 460 6 6 6,750 20,700 690,000 2,110,000 635.000 463.550 463.550 3.3 6.4 7,100 22,100 725,000 2,260,000 1 Minimum allowable dimension for chamfer dimension r or r1. B-220
Four Row Tapered Roller Bearings Bearing numbers Abutment and fillet dimensions Mass mm kg d a D a S a approx. E-HM265049D/HM265010/HM265010DG2 393.7 487 6 280 E-LM765149D/LM765110/LM765110D 393 472 2 145 E-625976 410 495 8 277 E-CRO-7612 417 525 7 208 E-HM266449D/HM266410/HM266410DG2 411 507 6.5 328 E-LM665949D/LM665910/LM665910D 409 482 7 240 E-LM767745D/LM767710/LM767710D 418 510 6.5 219 E-CRO-7901 434 508 3 200 E-CRO-8005 426 510 8 300 E-625980 434 518.5 7 324 E-LM767749D/LM767710/LM767710D 427 510 6.5 201 E-EE833161D/833232/833233D 448 549 6.5 395 E-EE911603D/912400/912401D 441 568 1.5 332 E-M667947D/M667911/M667911DG2 431 510 5.5 226 T-E-M268749D/M268710/M268710DG2 444 549 9 421 E-625984 457 545 7 374 E-CRO-8402 455 593 8 600 E-LM869449D/LM869410/LM869410DG2 453 537 8 198 E-LM769349D/LM769310/LM769310D 453 534 6.5 232 E-EE736173D/736238/736239D 464 572 6.5 297 E-625988 479 572.5 8 430 E-CRO-8807 484 607 9 400 E-CRO-8806 483 595 11 600 E-M270749D/M270710/M270710DAG2 478 591 8 509 Note: 1. Bearing numbers marked "" designate inch system bearings. 2. Bearing numbers marked "" designate bearing with hollow rollers and pin type cages. B-221
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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 272 and 273: Tapered Roller Bearings Inch system
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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
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Page 355 and 356: Adapter (For spherical roller beari
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Page 359 and 360: Withdrawal Sleeves (For spherical r
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High Speed Duplex Angular Contact T
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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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