NTN - Large Bearings

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Four Row Tapered Roller <strong>Bearings</strong> Sa Da ra r1a da Equivalent bearing load dynamic PrXFrYFa Fa Fr e Fa e Fr X Y X Y 1 Y1 0.67 Y2 static PorFrYoFa For values of e, Y2 and Yo see the table below. Bearing numbers Abutment and fillet dimensions Constant Axial load factors Mass mm kg d a D a S a r as r las min max max e Y 1 Y 2 Y o (approx.) CRO-11701 628 718 9.5 6.4 3.3 0.35 1.95 2.90 1.91 610 CRO-11913 654 781 7 6.4 3.3 0.33 2.03 3.02 1.98 1,135 M280049D/M280010/M280010DG2 633 786 11 6.4 3.3 0.33 2.03 3.02 1.98 1,160 EE649241D/649310/649311DG2 636 747 9.5 6.4 3.3 0.33 2.03 3.02 1.98 458 M280349D/M280310/M280310DG2 659 796 13.5 6.4 3.3 0.33 2.03 3.02 1.98 1,250 CRO-12202 660 776 11.5 6.4 3.3 0.33 2.03 3.02 1.98 960 CRO-12604 702 848 7.5 6 6 0.33 2.03 3.02 1.98 1,390 CRO-13001 765 947 8.5 6 10 0.32 2.12 3.15 2.07 1,760 M281649D/M281610/M281610DG2 699 870 11 6.4 3.3 0.33 2.03 3.02 1.98 1,630 CRO-13202 760 991 9 6 6 0.32 2.12 3.15 2.07 1,950 L281149D/L281110/L281110DG2 682.8 777 9 6.4 3.3 0.33 2.03 3.02 1.98 448 CRO-13401 719 901 8 6 6 0.33 2.03 3.02 1.98 1,600 CRO-13404 782 997 13.5 6 6 0.29 2.32 3.45 2.26 2,690 CRO-13402 799 995 13.5 6 6 0.32 2.12 3.15 2.07 2,600 LM281849D/LM281810/LM281810DG2 714 852 11 6.4 3.3 0.33 2.03 3.02 1.98 1,040 CRO-13602 713 824 8 5 2.5 0.43 1.57 2.34 1.53 582 M282249D/M282210/M282210DG2 723 900 13 6.4 3.3 0.33 2.03 3.02 1.98 1,770 EE655271D/655345/655346DG2 (CRO-13708) 717 831 8 6.4 3.3 0.42 1.61 2.40 1.57 539 CRO-14208 745 850 10 4 2 0.33 2.03 3.02 1.98 620 EE755281D/755360/755361DG2 744 873 9.5 2.5 5 0.38 1.77 2.64 1.73 527 EE755280D/755360/755361DG2 762 873 8 6.4 3.3 0.38 1.77 2.64 1.73 527 CRO-14601 780 1,020 7 6 6 0.33 2.03 3.02 1.98 1,900 Remarks: 1. Bearing numbers marked "" designate inch system bearings. 2. Bearing numbers marked "" designate bearing with hollow rollers and pin type cages. 3. B-197
Four Row Tapered Roller <strong>Bearings</strong> C2 r r1 B2 D d d 730.2501,200.150mm Boundary dimensions Basic load ratings dynamic static dynamic static mm kN kgf d D B 2 C 2 r s min 1 r ls min 1 C r C or C r C or 730.250 749.300 762.000 800 825.500 840 863.600 938.212 950 1,200.150 1,035.050 755.650 755.650 6.4 3.3 18,100 59,500 1,850,000 6,050,000 990.600 605.000 605.000 6.4 3.3 12,600 45,500 1,290,000 4,650,000 1,066.800 723.900 736.600 12.7 4.3 17,700 58,500 1,800,000 5,950,000 1,079.500 787.400 787.400 12.7 4.8 19,200 65,000 1,960,000 6,600,000 1,120 820 820 7.5 7 21,000 72,500 2,140,000 7,400,000 1,168.400 844.550 844.550 12.7 4.8 22,300 76,500 2,270,000 7,800,000 1,170 840 840 6 6 21,900 76,500 2,230,000 7,800,000 1,130.300 669.925 669.925 12.7 4.8 15,800 59,500 1,610,000 6,050,000 1,219.200 876.300 889.000 12.7 4.8 24,100 83,000 2,450,000 8,450,000 1,270.000 825.500 825.500 12.7 4.8 22,500 80,000 2,300,000 8,150,000 1,360 880 880 7.5 4 27,000 89,000 2,750,000 9,050,000 1,593.850 990.600 990.600 12.7 4.8 33,500 132,000 3,400,000 13,500,000 1 Minimum allowable dimension for chamfer dimension r or r1. B-198
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For New Technology Network R corpor
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Warranty NTN warrants, to the origi
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A-2
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A-4
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Load Rating and Life n min -1 60,00
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Bearing Load Calculation 2. Bearing
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A-10A-30
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Bearing Tolerances Table 3.3 Tolera
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Bearing Tolerances 3.2 Limits and t
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Bearing Fits 4. Bearing Fits 4.1 In
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Bearing Fits (3) Consideration must
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Bearing Fits Table 4.3 Standard fit
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Bearing Fits Table 4.6 Fits for inc
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Bearing Internal Clearance (1) Redu
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Bearing Internal Clearance Table 5.
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Lubrication 6. Lubrication 6.1 Lubr
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Lubrication 6.3.2 Base oil Natural
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Lubrication 6.5 Oil lubrication Oil
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Lubrication Table 6.9 Factor K Expe
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MEMO A-46
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INDEX OF BEARING TABLES Deep Groove
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Deep Groove Ball Bearings
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Deep Groove Ball Bearings D r B r d
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Deep Groove Ball Bearings r D B r d
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Angular Contact Ball Bearings
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Angular Contact Ball Bearings 1. 2
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Angular Contact Ball Bearings Singl
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Double Row Angular Contact Ball Bea
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Double Row Angular Contact Ball Bea
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Cylindrical Roller Bearings
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Cylindrical Roller Bearings Table 3
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Single Row Cylindrical Roller Beari
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Multi-Row Cylindrical Roller Bearin
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4-Row Cylindrical Roller Bearings C
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SL Type Cylindrical Roller Bearings
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Tapered Roller bearings
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Tapered Roller Bearings Table 2 Str
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Tapered Roller Bearings Inch system
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Tapered Roller Bearings Inch system
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Single Row Tapered Roller Bearings
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Double Row Tapered Roller Bearings
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Page 195 and 196: Double Row Tapered Roller Bearings
Page 219 and 220: Double Row Steep Slope Tapered Roll
Page 229 and 230: Four Row Tapered Roller Bearings C2
Page 245: Four Row Tapered Roller Bearings C2
Page 249 and 250: Sealed Four Row Tapered Roller Bear
Page 251 and 252: Spherical Roller bearings
Page 253 and 254: Spherical Roller Bearings 2. Dimens
Page 255 and 256: Spherical Roller Bearings B r r D d
Page 275 and 276: Thrust bearings
Page 277 and 278: Thrust Bearings 1. 3 Tapered roller
Page 279 and 280: Thrust Bearings d1 d D1 D r r T da
Page 281 and 282: Thrust Bearings d1 d D1 D r r T da
Page 283 and 284: Thrust Roller Bearings r d1 d D D1
Page 285 and 286: Thrust Roller Bearings r d1 d T r D
Page 287 and 288: Thrust Roller Bearings r d1 d T r D
Page 289 and 290: Tapered Roller Thrust Bearings (Sin
Page 291 and 292: Tapered Roller Thrust Bearings (Sin
Page 293 and 294: Tapered Roller Thrust Bearings (Dou
Page 295 and 296: Self-Aligning Thrust Roller Bearing
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Self-Aligning Thrust Roller Bearing
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Self-Aligning Thrust Roller Bearing
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Bearings for special applications C
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Split Cylindrical Roller Bearings:
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Double-Fractured Split Cylindrical
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Bearings for Preparing Rolls: Sendz
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Enclosed-Type Tapered Roller Bearin
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Tapered Roller Thrust Bearings: Scr
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Tapered Roller Thrust Bearings: Scr
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Tension Leveler Roll Unit: Cartridg
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Turn Table Bearings: 3-Row Cylindri
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Sealed Spherical Roller Bearings: M
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Spherical Surface Slide Bearings ¡
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Catalog List & Appendix Table
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Catalog List CATALOG TITLES CATALOG
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Appendix Table D-5 Appendix table 1
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Appendix Table Appendix table 2: Co
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Appendix Table h4 h5 h6 h7 h8 h9 h1
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Appendix Table H7 H8 H9 H10 H11 H13
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Appendix Table Appendix table 8: Vi
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D-15 1/64 1/32 3/64 1/16 5/64 3/32
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NTN - Large Bearings

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