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.) T-M252349D/M252310/M252310D 290 356 6 2.5 2.5 0.33 2.03 3.02 1.98 97.5 CRO-5403 305 382 6 3 3 0.27 2.49 3.71 2.43 91 CRO-5501 300 355 6 2.5 2.5 0.40 1.68 2.50 1.64 62.5 EE275109D/275160/275161D 293.6 366 8 6.4 1.5 0.40 1.68 2.69 1.64 122 CRO-5628 298.5 353 5 2.5 1.5 0.37 1.80 2.69 1.76 79.6 EE135111D/135155/135156D 297 368 6.5 5 1.5 0.40 1.68 2.50 1.64 103 CRO-5614 312.5 383.5 6 5 2.5 0.37 1.80 2.69 1.76 141 EE722111D/722185/722186D 316 432 5 3.3 6.4 0.37 1.78 2.65 1.74 258 T-LM654644D/LM654610/LM654610D (CRO-5679) 297 356 5 3.3 1.5 0.43 1.56 2.33 1.52 83.2 CRO-5650 (CRO-5676) 300 354 6.5 2.5 1.5 0.33 2.03 3.02 1.98 105 625956 (CRO-5684) 304.5 363.5 7 3 4 0.33 2.03 3.02 1.98 111 T-LM654648D/LM654610/LM654610D (CRO-5710) 302 356 5 1.5 2.5 0.43 1.56 2.33 1.53 82.5 M255449D/M255410/M255410DA 310 379 5 3.3 3.3 0.34 2.00 2.98 1.96 125 EE921150D/921875/921876D 321 441 7 3.3 1.5 0.29 2.30 3.42 2.25 208 625960 329 389.5 7 3 4 0.33 2.03 3.02 1.98 138 CRO-6019 325.5 395.5 8 3 3 0.47 1.45 2.16 1.42 132 CRO-6022 323 394 3 3 3 0.47 1.45 2.16 1.42 141 CRO-6015 330 427 10 3 3 0.31 2.21 3.29 2.16 180 CRO-6012 338 438 7 3 3 0.37 1.80 2.69 1.76 152 CRO-6013 (CRO-6033) 336 437 7 3 3 0.37 1.80 2.69 1.76 164 623160 346.5 449 5 4 4 0.40 1.68 2.50 1.64 257 T-HM256849D/HM256810/HM256810DG2 322 394 6 3.3 3.3 0.34 2.00 2.98 1.95 143 EE329119D/329172/329173D 328 409 8 3.3 3.3 0.33 2.04 3.04 2.00 143 M757448D/M757410/M757410D 328 407 7 4.8 3.3 0.47 1.43 2.12 1.39 140 M257149D/M257110/M257110D 322 392 5 6.4 1.5 0.33 2.03 3.02 1.98 115 EE291202D/291750/291751D 328 416 9.5 1.5 8 0.38 1.78 2.65 1.74 127 Remarks: 1. Bearing numbers marked "" designate inch system bearings. 2. Bearing numbers marked "" designate bearing with hollow rollers and pin type cages. 3. B-187
Four Row Tapered Roller <strong>Bearings</strong> C2 r r1 B2 D d d 304.800355mm 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 304.800 304.902 305.003 310 317.500 320 327 330 330.200 333.375 340 341.312 342.900 343.052 346.075 347.662 495.300 342.900 349.250 6.4 3.3 3,650 9,400 370,000 960,000 412.648 266.700 266.700 3.3 3.3 2,610 7,450 267,000 760,000 438.048 280.990 279.400 4.8 3.3 2,630 6,900 268,000 700,000 430 310 310 4 2.2 2,880 8,100 294,000 825,000 430 310 310 5.5 2.2 3,050 8,600 310,000 875,000 422.275 269.875 269.875 3.3 1.5 2,260 7,050 231,000 715,000 447.675 327.025 327.025 3.3 3.3 3,400 9,550 345,000 995,000 460 338 338 4 5 2,940 8,650 300,000 880,000 445 230 230 4 2 2,150 5,650 219,000 575,000 470 340 340 2.5 2.5 3,150 10,200 320,000 1,040,000 510 340 340 6 6 3,900 9,650 395,000 985,000 482.600 306.388 311.150 3.3 1.5 2,810 7,900 287,000 805,000 533.400 254.000 254.000 6 6 3,200 6,750 330,000 690,000 469.900 342.900 342.900 3.3 3.3 4,000 11,000 405,000 1,130,000 480 350 350 5 6 3,450 10,400 350,000 1,060,000 520 278 278 5 6 3,250 7,500 330,000 765,000 457.098 254.000 254.000 3.3 1.5 2,370 6,900 241,000 705,000 533.400 307.985 301.625 3.3 3.3 3,150 6,900 320,000 705,000 457.098 254.000 254.000 3.3 1.5 2,370 6,900 241,000 705,000 457.098 254.000 254.000 3.3 1.5 2,430 6,750 248,000 685,000 488.950 358.775 358.775 3.3 3.3 4,350 12,800 445,000 1,300,000 469.900 292.100 292.100 3.3 3.3 3,200 9,100 325,000 925,000 355 490 316 316 3.3 1.5 3,500 10,000 355,000 1,020,000 1 Minimum allowable dimension for chamfer dimension r or r1. B-188
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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 185 and 186: 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 235: 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
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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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