NTN - Large Bearings

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Double Row Tapered Roller <strong>Bearings</strong> (Outside Direction) Db r1a ra 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. Abutment and fillet dimensions Load center Constant Axial load factors Mass mm mm kg d a D b r as r las min max max max a e Y 1 Y 2 Y o (approx.) 522 613 6.4 1.5 262 0.47 1.43 2.12 1.40 130 522 627 6.4 1.5 216 0.31 2.20 3.27 2.15 178 522 609 6.4 1.5 215 0.34 1.98 2.94 1.93 140 528 609 6.4 1.5 215 0.34 1.98 2.94 1.93 129 564 768 9.7 3.3 357 0.48 1.41 2.09 1.37 592 585 762 9.7 3.3 322.5 0.44 1.52 2.26 1.49 444 576 726 6.4 1.5 290 0.33 2.03 3.02 1.98 398 579 666 6.4 1.5 239 0.38 1.79 2.67 1.75 135 594 705 6.4 3.3 298 0.51 1.32 1.96 1.29 166 591 708 6.4 1.5 231 0.34 1.98 2.94 1.93 189 594 708 6.4 1.5 256.5 0.35 1.95 2.90 1.91 227 615 774 6.4 1.5 308 0.33 2.03 3.02 1.98 487 642 764 6.4 1.5 254 0.33 2.03 3.02 1.98 235 645 765 6.4 3.3 254 0.33 2.06 3.06 2.01 241 693 789 6.4 1.5 667.5 0.37 1.80 2.69 1.76 199 750 876 6.4 3.3 295.5 0.38 1.77 2.64 1.73 275 756 876 5.5 3.3 295.5 0.38 1.77 2.64 1.73 256 1,010 1,100 6.4 3.3 376 0.44 1.54 2.30 1.51 196 1,305 1,400 6.4 3.3 586.5 0.58 1.17 1.75 1.15 285 B-151
Double Row Tapered Roller <strong>Bearings</strong> (Inside Direction) Metric system sizes C1 r r1 B D d a d 100180mm Boundary dimensions Basic load ratings Bearing numbers dynamic static dynamic static mm kN kgf d D B C 1 r s min 1 r ls min 1 C r C or C r C or 100 105 110 120 130 140 150 160 170 177.000 250 116 116 4 4 790 1,050 80,500 107,000 CRD-2051 170 90 90 2.5 2.5 420 860 42,500 87,500 CRD-2151 180 56 56 2 2.5 298 485 30,500 49,500 323122 190 102 98 3 1.5 515 950 52,500 96,500 CRD-2252 200 82 82 2.5 1 555 865 56,500 88,500 CRD-2254 170 120 120 2 2 415 890 42,500 91,000 CRD-2421 180 46 46 2 2.5 230 375 23,500 38,000 323024 200 62 62 2 2.5 370 610 38,000 62,500 323124 215 113 113 2.5 2.5 735 1,300 75,000 133,000 CRD-2420 280 150 140 3 3 1,130 1,840 115,000 187,000 CRD-2422 190 120 120 1.5 1.5 415 840 42,000 85,500 CRD-2652 195 120 120 2.5 1.5 475 1,040 48,500 106,000 CRD-2654 200 52 52 2 2.5 294 490 29,900 50,000 323026 210 64 64 2 2.5 410 675 42,000 69,000 323126 210 53 53 2 2.5 300 535 30,500 54,500 323028 225 68 68 2.5 3 390 650 40,000 66,000 323128 225 56 56 2.5 3 355 630 36,000 64,500 323030 250 80 80 2.5 3 600 1,040 61,500 106,000 323130 250 110 110 2.5 2.5 855 1,590 87,500 162,000 CRD-3052 240 60 60 2.5 3 430 765 44,000 78,000 323032 240 110 110 2.5 2.5 750 1,560 76,500 159,000 CRD-3254 260 130 130 3 1.5 880 1,740 89,500 178,000 CRD-3253 270 86 86 2.5 3 675 1,180 69,000 120,000 323132E1 270 116 116 2.5 2.5 835 1,640 85,500 167,000 CRD-3208 260 67 67 2.5 3 490 865 50,000 88,000 323034 280 76 76 2.5 2.5 550 900 56,000 92,000 CRD-3413 280 88 88 2.5 3 725 1,270 74,000 130,000 323134E1 248.000 90.488 90.488 3.3 1.57 515 1,180 52,500 120,000 CRD-3502 180 280 74 74 2.5 3 580 1,050 59,500 107,000 323036E1 1 Minimum allowable dimension for chamfer dimension r or r1. 2 "" means the load center is out side the inner ring. Remarks: 1. The marked "" bearings are inch system sizes. B-152
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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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Single Row Tapered Roller Bearings
Page 149 and 150: Single Row Tapered Roller Bearings
Page 173 and 174: Double Row Tapered Roller Bearings
Page 199: 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 249 and 250: Sealed Four Row Tapered Roller Bear
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Spherical Roller bearings
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Spherical Roller Bearings 2. Dimens
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Spherical Roller Bearings B r r D d
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Thrust bearings
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Thrust Bearings 1. 3 Tapered roller
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Thrust Bearings d1 d D1 D r r T da
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Thrust Bearings d1 d D1 D r r T da
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Thrust Roller Bearings r d1 d D D1
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Thrust Roller Bearings r d1 d T r D
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Thrust Roller Bearings r d1 d T r D
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Tapered Roller Thrust Bearings (Sin
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Tapered Roller Thrust Bearings (Sin
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Tapered Roller Thrust Bearings (Dou
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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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