Ball and Roller Bearings - Ntn-snr.com

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Tapered Roller Bearings Metric system sizes r1 T C D B r d a d 320360mm Boundary dimensions Basic load ratings Limiting speeds Bearing dynamic static dynamic static numbers mm kN kgf rpm 1 1 d D T B C r s min rls min C r C or C r C or grease oil 320 340 360 440 76 76 57 4 3 1,010 2,150 103,000 219,000 670 900 32964XUE1 440 76 72 63 3 3 865 1,880 88,000 192,000 670 900 32964E1 2 480 100 100 74 5 4 1,520 2,940 155,000 300,000 630 840 32064XU 460 76 76 57 4 3 1,040 2,270 106,000 232,000 630 840 32968XUE1 460 76 72 63 3 3 910 1,980 93,000 201,000 630 900 32968E1 2 480 76 76 57 4 3 1,050 2,330 107,000 238,000 590 780 32972XUE1 1 Minimal allowable dimension for chamfer dimension r or r1. 2 This bearing does not incorporate the subunit dimensions. B-154
Tapered Roller Bearings Sa Sb r1a ra Equivalent bearing load dynamic PrXFrYFa Da db da Db Fa Fa e Fr Fr e X Y X Y 1 0 0.4 Y2 static Por0.5FrYoFa When PorFrusePorFr For values of e, Y2 and Yo see the table below. Dimensions Abutment and fillet dimensions Load Constant Axial Mass series to center load factors ISO mm mm kg d a d b D a D b S a S b r as r 1as min max max min min min min max max a e Y 2 Y o approx. 3FD 338 344 426 398 426 13 19 3 2.5 85 0.42 1.44 0.79 33.1 338 344 426 398 425 13 13 3 2.5 85 0.39 1.55 0.85 31.7 4GD 342 344.5 462 418.5 463 15 26 4 3 104 0.46 1.31 0.72 60.2 4FD 358 362 446 417 446 13 19 3 2.5 90.5 0.44 1.37 0.75 34.9 358 362 446 414 445.5 13 13 3 2.5 87 0.39 1.55 0.85 36.0 4FD 378 381 466 436 466 13 19 3 2.5 96.5 0.46 1.31 0.72 36.6 Note: When selecting bearings with bearing numbers marked with "", please consult NTN Engineering. B-155
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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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Page 205 and 206: Cylindrical Roller Bearings ra r1a
Page 213 and 214: L Type Loose Rib B2 B2 r1 r1 B1 d d
Page 215 and 216: L Type Loose Rib B2 B2 r1 r1 B1 d d
Page 217 and 218: Multi-Row Cylindrical Roller Bearin
Page 223 and 224: Four-Row Cylindrical Roller Bearing
Page 231: Four-Row Cylindrical Roller Bearing
Page 234 and 235: Tapered Roller Bearings Table 1 (co
Page 236 and 237: Tapered Roller Bearings Inch Tapere
Page 238 and 239: Tapered Roller Bearings Inch Tapere
Page 240 and 241: Tapered Roller Bearings Metric syst
Page 258 and 259: Tapered Roller Bearings Inch system
Page 296 and 297: Multi-Row Tapered Roller Bearings O
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Multi-Row Tapered Roller Bearings O
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Multi-Row Tapered Roller Bearings O
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Multi-Row Tapered Roller Bearings I
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Multi-Row Tapered Roller Bearings I
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Four Row Tapered Roller Bearings C2
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Spherical Roller Bearings 1. Types,
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Spherical Roller Bearings 5. Adapte
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Spherical Roller Bearings ra Da ra
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Adapter (For spherical roller beari
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Adapter (For spherical roller beari
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Withdrawal Sleeves (For spherical r
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Double Row Angular Contact Thrust B
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Double Row Angular Contact Thrust B
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High Speed Duplex Angular Contact T
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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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