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NINGBO RUNNING BEARINGS CO.,LTD.
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LM451349DW/LM451310/LM451310CD TIMKEN Four-Row Tapered Roller Bearings
| Payment Terms: | T/T,L/C,WU |
| Place of Origin: | Zhejiang, China (Mainland) |
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Product Detail
Front faces of single cones and both faces of double cone are extended to contact each other.
Lubrication delivered through three cup spacers.
Four-Row Tapered Roller Bearings LM451349DW/LM451310/LM451310CD
Four-row tapered roller bearings provide maximum capacity in minimum space, combining the inherenthigh-load,radial/thrust capacity and direct/indirect mounting variablesof tapered roller bearings.
Their main application is on the roll necks of rolling mill equipment.All four-row bearings are supplied as pre-setmatchedassemblies with all components identified to ensure correct installation sequence.
TQIT (Tapered Bore Four-Row Assembly)
Type TQIT bearings have a tapered bore that is matched andcontinuous through the inner races.This allows for an interference fiton the backup rolls of high-speed mills, where a loose inner race fit ofa straight bore bearing could cause excessive neck wear.
Four-Row Tapered Roller Bearings
Size range:
ID 123.022 mm to 1004.633 mm (4.8434 in. to 39.5525 in.)
OD 174.625 mm to 2032.000 mm (6.8750 mm to 80.0000 in.)
Design Attributes
Two tapered-bore single cones, one tapered-bore double cone, four single cups and three cup spacers.
Front faces of single cones and both faces of double cone are extended to contact each other.
Tapered cone bores are matched for continuous taper through the cones.
Lubrication delivered through three cup spacers.
Preset, matched assemblies, serial numbered to assure correct installation.
Four-Row Tapered Roller Bearings
Applications
Roll necks of high-speed rolling mills
| Boundary Dimensions | Basicload ratings | Designations | Mass | ||||||||||||
| d | D | T | B | rmin(Axial) | rmin(Radial) | r1min(Axial) | r1min(Radial) | Cr | Cor | kg | |||||
| mm | in | mm | in | mm | in | mm | in | mm | KN | ||||||
| 406.4 | 16 | 546.1 | 21.5 | 268.288 | 10.5625 | 288.925 | 11.375 | 1.5 | 1.5 | 6.4 | 6.4 | 4150 | 9450 | EE234161D/234215-234216D | 182 |
| 546.1 | 21.5 | 288.925 | 11.375 | 288.925 | 11.375 | 1.5 | 1.5 | 6.4 | 6.4 | 4200 | 10000 | LM767749DW/LM767710-LM767710D | 186 | ||
| 546.1 | 21.5 | 330 | 12.9921 | 330 | 12.9921 | 1.5 | 1.5 | 6.4 | 6.4 | 4900 | 12500 | 3806/406.4 | 223 | ||
| 565.15 | 22.25 | 381 | 15 | 381 | 15 | 3.3 | 3.3 | 6.4 | 6.4 | 5900 | 15200 | M267949D/M267910-M267910XD | 298 | ||
| 590.55 | 23.25 | 400.05 | 15.75 | 400.05 | 15.75 | 3.3 | 3.3 | 6.4 | 6.4 | 6850 | 16300 | EE833161D/833232-833233D | 371 | ||
| 409.575 | 16.125 | 546.1 | 21.5 | 334.962 | 13.1875 | 334.962 | 13.1875 | 1.5 | 1.5 | 6.4 | 6.4 | 4700 | 11600 | M667947DW/M667910-M667910D | 206 |
| 546.1 | 21.5 | 334.962 | 13.1875 | 334.962 | 13.1875 | 1.5 | 1.5 | 6.4 | 6.4 | 3470 | 11500 | M667947D/M667910-M667910D | 213 | ||
| 546.1 | 21.5 | 334.962 | 13.1875 | 334.962 | 13.1875 | 1.5 | 1.5 | 6.4 | 6.4 | 4150 | 10400 | M667947DW/M667910-M667910D-XRS/HEC9YB2 | 205 | ||
| 415.925 | 16.375 | 590.55 | 23.25 | 434.975 | 17.125 | 434.975 | 17.125 | 3.3 | 3.3 | 6.4 | 6.4 | 5400 | 16500 | M268749D/M268710-M268710D | 369 |
| 431.8 | 17 | 571.5 | 22.5 | 279.4 | 11 | 279.4 | 11 | 1.5 | 1.5 | 3.3 | 3.3 | 3550 | 9500 | LM869449DW/LM869410-LM869410D | 199 |
| 571.5 | 22.5 | 336.55 | 13.25 | 336.55 | 13.25 | 1.5 | 1.5 | 6.4 | 6.4 | 4700 | 11500 | LM769349D/LM769310-LM769310D | 233 | ||
| 635 | 25 | 355.6 | 14 | 355.6 | 14 | 6.4 | 6.4 | 6.4 | 6.4 | 6500 | 14500 | EE931070D/931250-931251XD | 386 | ||
| 444.5 | 17.5 | 571.5 | 22.5 | 336.55 | 13.25 | 336.55 | 13.25 | 1.5 | 1.5 | 3.3 | 3.3 | 4800 | 14200 | 3806/444.5 | 216 |
| 447.6 | 17.622 | 635 | 25 | 463.5 | 18.248 | 463.5 | 18.248 | 3.3 | 3.3 | 6.4 | 6.4 | 7500 | 19800 | 3806/447.6 | 472 |
| 447.675 | 17.625 | 636 | 25.0394 | 463.55 | 18.25 | 463.55 | 18.25 | 3.3 | 3.3 | 6.4 | 6.4 | 8100 | 21800 | M270749DW/M270710-M270710D | 486 |
| 449.949 | 17.715 | 594.949 | 23.4232 | 368 | 14.4882 | 368 | 14.4882 | 4 | 4 | 8 | 8 | 4900 | 15700 | M270448DGW/M270410/DB-3 | 300 |
| 457.073 | 17.995 | 730.148 | 28.746 | 412.75 | 16.25 | 419.1 | 16.5 | 1.5 | 1.5 | 6.4 | 6.4 | 8800 | 19000 | 3806/457X4 | 628 |
| 457.2 | 18 | 596.9 | 23.5 | 276.225 | 10.875 | 279.4 | 11 | 1.5 | 1.5 | 3.3 | 3.3 | 4400 | 10500 | L770847DW/L770810-L770810D | 202 |
| 596.9 | 23.5 | 320 | 12.5984 | 320 | 12.5984 | 3.3 | 3.3 | 3.3 | 3.3 | 4700 | 13500 | 3806/457.2 | 234 | ||
| 460* | 625 | 421 | 421 | 3 | 3 | 9 | 9 | 8050 | 18400 | M271149D/M271110-M271110D | 375 | ||||
| 625* | 421 | 421 | 1.5 | 1.5 | 6.4 | 6.4 | 6450 | 16900 | M271149DW/M271110-M271110D-XRS/C9YB2 | 366 | |||||
| 462 | 18.189 | 596.9 | 23.5 | 330.2 | 13 | 330.2 | 13 | 3.3 | 3.3 | 6.4 | 6.4 | 5400 | 14500 | 3806/462 | 276 |
| 479.425 | 18.875 | 679.45 | 26.75 | 495.3 | 19.5 | 495.3 | 19.5 | 3.3 | 3.3 | 6.4 | 6.4 | 9850 | 25000 | M272749D/M272710-M272710D | 586 |
| 482.6 | 19 | 615.95 | 24.25 | 330.2 | 13 | 330.2 | 13 | 6.4 | 6.4 | 6.4 | 6.4 | 4860 | 15200 | LM272249DW/LM272210-LM272210D | 252 |
| 615.95 | 24.25 | 400 | 400 | 5.3 | 5.3 | 6.4 | 6.4 | 4700 | 16000 | 3806/482.6-XRS/HCEC9YAB | 299 | ||||
| 615.95 | 24.25 | 406.4 | 16 | 330.2 | 13 | 1 | 1 | 6.4 | 6.4 | 4860 | 15200 | 3806/482.6-1 | 251 | ||
| 615.95 | 24.25 | 419.1 | 16.5 | 330.2 | 13 | 3.5 | 3.5 | 6.4 | 6.4 | 5000 | 15200 | 3806/482.6-2 | 263 | ||
| 615.95 | 24.25 | 402.05 | 15.8287 | 402.05 | 15.8287 | 1 | 1 | 6.4 | 6.4 | 4800 | 13600 | 3806/482.6-3 | 246 | ||
| 615.95 | 24.25 | 420 | 16.5354 | 420 | 16.5354 | 1 | 1 | 6.4 | 6.4 | 5500 | 17100 | 3806/482.6-4 | 292 | ||
| 630 | 24.8031 | 420 | 16.5354 | 420 | 16.5354 | 3.3 | 3.3 | 6.4 | 6.4 | 6400 | 19000 | 3806/482.6-5 | 343 | ||
| 635 | 25 | 421 | 16.5748 | 421 | 16.5748 | 3 | 3 | 6.4 | 6.4 | 7250 | 20200 | M272449D/M272410-M272410D | 362 | ||
| 647.7 | 25.5 | 417.512 | 16.4375 | 417.512 | 16.4375 | 3.3 | 3.3 | 6.4 | 6.4 | 7200 | 19800 | M272647DW-M272610-M272610D | 401 | ||
| 622.3 | 24.5 | 365.125 | 14.375 | 365.125 | 14.375 | 3 | 3 | 3 | 3 | 5500 | 17000 | 3806/488X4 | 266 | ||
| 489.026 | 19.253 | 634.873 | 24.995 | 320.675 | 12.625 | 320.675 | 12.625 | 3.3 | 3.3 | 3.3 | 3.3 | 4750 | 12000 | LM772749DW/LM772710-LM772710D | 249 |
| 501.65 | 19.75 | 673.1 | 26.5 | 400.05 | 15.75 | 387.35 | 15.25 | 3.3 | 3.3 | 6.4 | 6.4 | 7000 | 19000 | EE641198D/641265-641266D | 687 |
| 711.2 | 28 | 520.7 | 20.5 | 520.7 | 20.5 | 3.3 | 3.3 | 6.4 | 6.4 | 9690 | 26900 | M274149DW/M274110-M274110D | 687 | ||
| 508 | 20 | 695.325 | 27.375 | 415.925 | 16.375 | 415.925 | 16.375 | 3.3 | 3.3 | 6.4 | 6.4 | 5800 | 19600 | LM274049DW/LM274010-LM274010D | 464 |
| 762 | 30 | 463.55 | 18.25 | 463.55 | 18.25 | 6.4 | 6.4 | 6.4 | 6.4 | 9800 | 27000 | EE531201D/531300-531301XD | 750 | ||
| 514.35 | 20.25 | 673.1 | 26.5 | 422.275 | 16.625 | 422.275 | 16.625 | 3.3 | 3.3 | 6.4 | 6.4 | 7000 | 21000 | LM274449DW/LM274410-LM274410D | 408 |
| 519.112 | 20.438 | 736.6 | 29 | 536.575 | 21.125 | 536.575 | 21.125 | 3.3 | 3.3 | 6.4 | 6.4 | 10800 | 30000 | LM275349D/LM275310-LM275310XD | 748 |
| 520.7 | 20.5 | 711.2 | 28 | 400.05 | 15.75 | 400.05 | 15.75 | 3.3 | 3.3 | 6.4 | 6.4 | 7200 | 19500 | LM275349D/LM275310-LM275310XD | 459 |
| 536.575 | 21.125 | 761.873 | 29.995 | 558.8 | 22 | 558.8 | 22 | 3.3 | 3.3 | 6.4 | 6.4 | 10800 | 31500 | M276449DW/M276410-M276410D | 832 |
| 558.8 | 22 | 736.6 | 29 | 322.265 | 12.6876 | 322.268 | 12.6877 | 3.3 | 3.3 | 6.4 | 6.4 | 6200 | 16000 | EE8432DW/843290-843291D | 372 |
| 736.6 | 29 | 409.575 | 16.125 | 409.575 | 16.125 | 3.3 | 3.3 | 6.4 | 6.4 | 6450 | 19800 | LM377449DW/LM377410-LM377410D | 478 | ||
| 736.6 | 29 | 455.612 | 17.9375 | 457.2 | 18 | 3.3 | 3.3 | 6.4 | 6.4 | 8400 | 23000 | LM277149DA/LM277110-LM277110D | 520 | ||
| 571.5 | 22.5 | 812.8 | 32 | 593.725 | 23.375 | 593.725 | 23.375 | 3.3 | 3.3 | 6.4 | 6.4 | 11800 | 31500 | M278749DW/M278710-M278710D | 998 |
| 584.2 | 23 | 730.25 | 28.75 | 342.9 | 13.5 | 349.25 | 13.75 | 1.5 | 1.5 | 3.3 | 3.3 | 6600 | 16500 | 3806/584.2 | 328 |
| 762 | 30 | 396.875 | 15.625 | 401.638 | 15.8125 | 3.3 | 3.3 | 6.4 | 6.4 | 7500 | 22300 | LM778549DW/LM778510-LM778510D | 486 | ||
| 901.7 | 35.5 | 523.08 | 20.5937 | 539.747 | 21.2499 | 3.3 | 3.3 | 9.7 | 9.7 | 12800 | 27500 | EE665231D/665355-665336D | 1250 | ||
| 558.8 | 22 | 736.6 | 29 | 409.575 | 16.125 | 409.575 | 16.125 | 3.3 | 3.3 | 6.4 | 6.4 | 6430 | 20500 | LM377449D/LM377410-LM377410D/HE | 460 |
| 736.6 | 29 | 409.575 | 16.125 | 409.575 | 16.125 | 3.3 | 3.3 | 6.4 | 6.4 | 6430 | 20500 | LM377449D/LM377410-LM377410D/HEC9 | 460 | ||
| 585.788 | 23.063 | 771.525 | 30.375 | 479.425 | 18.875 | 479.425 | 18.875 | 3.3 | 3.3 | 6.4 | 6.4 | 9000 | 24200 | LM278849D/LM278810-LM278810D-XRS | 600 |
| 771.525 | 33.25 | 479.425 | 24.25 | 479.425 | 24.25 | 3.3 | 3.3 | 6.4 | 6.4 | 10000 | 29800 | LM278849D/LM278810-LM278810D | 621 | ||
| 595.312 | 23.438 | 844.55 | 33.25 | 615.95 | 24.25 | 615.95 | 24.25 | 3.3 | 3.3 | 6.4 | 6.4 | 17200 | 38500 | M280049D/M280010-M280010D | 1180 |
| 596.9 | 23.5 | 980 | 38.5827 | 604.838 | 23.8125 | 609.6 | 24 | 6.4 | 6.4 | 12.7 | 12.7 | 16000 | 36000 | 3806/596.9 | 1910 |
| 603.25 | 23.75 | 857.25 | 33.75 | 622.3 | 24.5 | 622.3 | 24.5 | 8.7 | 12.7 | 8.3 | 6.5 | 14000 | 38900 | M280249DWA6/M280210A6-M280210D | 1168 |
| 857.25 | 33.75 | 622.3 | 24.5 | 622.3 | 24.5 | 3.3 | 3.3 | 6.4 | 6.4 | 14000 | 38900 | M280249D/M280210-M280210XD | 1168 | ||
| 609.6 | 24 | 787.4 | 31 | 361.95 | 14.25 | 361.95 | 14.25 | 3.3 | 3.3 | 6.4 | 6.4 | 7100 | 22000 | EE649241D/649310-649311D | 460 |
| 813.562 | 32.03 | 622.3 | 24.5 | 622.3 | 24.5 | 3.3 | 3.3 | 6.4 | 6.4 | 10500 | 30000 | 3806/609.6 | 716 | ||
| 863.6 | 34 | 660.4 | 26 | 660.4 | 26 | 3.3 | 3.3 | 6.4 | 6.4 | 14800 | 41000 | M280349D/M280310-M280310D | 1230 | ||
| 635 | 25 | 901.7 | 35.5 | 654.05 | 25.75 | 654.05 | 25.75 | 3.3 | 3.3 | 6.4 | 6.4 | 15000 | 44500 | M281049D/M281010-M281010D | 1430 |
| 646.112 | 25.438 | 857.25 | 33.75 | 542.925 | 21.375 | 542.925 | 21.375 | 3.3 | 3.3 | 6.4 | 6.4 | 11300 | 33500 | LM281049DW/LM281010-LM281010D | 859 |
| 657.225 | 25.875 | 933.45 | 36.75 | 676.275 | 26.625 | 676.275 | 26.625 | 3.3 | 3.3 | 6.4 | 6.4 | 16500 | 48500 | M281649D/M281610-M281610D | 1580 |
| 660.4 | 26 | 812.8 | 32 | 356.125 | 14.375 | 356.125 | 14.375 | 3.3 | 3.3 | 6.4 | 6.4 | 5300 | 19800 | L281149DW/L281110-L281110D | 403 |
| 679.45 | 26.75 | 901.7 | 35.5 | 552.45 | 21.75 | 552.45 | 21.75 | 3.3 | 3.3 | 6.4 | 6.4 | 12800 | 38500 | LM281849DW/LM281810-LM281810D | 980 |
| 682.625 | 26.875 | 965.2 | 38 | 701.675 | 27.625 | 701.675 | 27.625 | 3.3 | 3.3 | 6.4 | 6.4 | 17400 | 50000 | M282249D/M282210-M282210D | 1714 |
| 685.8 | 27 | 876.3 | 34.5 | 352.425 | 13.875 | 355.6 | 14 | SP | SP | 6.4 | 6.4 | 5800 | 14500 | 3806/685.8-XRS/HCC9 | 490 |
| 876.3 | 34.5 | 352.425 | 13.875 | 355.6 | 14 | 3.3 | 3.3 | 6.4 | 6.4 | 7500 | 19800 | EE655271DW/655345-655346D | 506 | ||
| 708.025 | 27.875 | 930.275 | 36.625 | 565.15 | 22.25 | 565.15 | 22.25 | 3.3 | 3.3 | SP | SP | 12000 | 38500 | LM282549DW/LM282510-LM282510D | 1040 |
| 711.2 | 28 | 914.4 | 36 | 317.5 | 12.5 | 317.5 | 12.5 | 3.3 | 3.3 | 6.4 | 6.4 | 7000 | 19200 | EE755281D/755360-755361D | 524 |
| 914.4 | 36 | 390 | 390 | SP | SP | 7.5 | 7.5 | 7900 | 20100 | 3806/711X4-XRS | 620 | ||||
| 714.375 | 28.125 | 1016 | 40 | 704.85 | 27.75 | 704.85 | 27.75 | 3.3 | 3.3 | 6.4 | 6.4 | 18500 | 52500 | M383240DGW/M383210-M383210D | 1940 |
| 717.55 | 28.25 | 946.15 | 37.25 | 565.15 | 22.25 | 565.15 | 22.25 | 3.3 | 3.3 | 6.4 | 6.4 | 13000 | 40000 | LM282847DW/M282810-M282810D | 1080 |
| 730.25 | 28.75 | 1035.05 | 40.75 | 755.65 | 29.75 | 755.65 | 29.75 | 3.3 | 3.3 | 6.4 | 6.4 | 19800 | 20200 | M283449DW/M283410-M283410D | 2160 |
| 749.3 | 29.5 | 990.6 | 39 | 605 | 23.8189 | 605 | 23.8189 | 3.3 | 3.3 | 6.4 | 6.4 | 14500 | 45000 | LM283649D/LM283610-LM283610D | 1240 |
| 1066.8 | 42 | 723.9 | 28.5 | 736.6 | 29 | SP | SP | 12.7 | 12.7 | 19500 | 58000 | EE325296DGW/325420-325421XD | 2240 | ||
| 762 | 30 | 1066.8 | 42 | 723.9 | 28.5 | 736.6 | 29 | SP | SP | 12.7 | 12.7 | 21000 | 58000 | M284148DW/M284111-M284110D | 2100 |
| 1079.5 | 42.5 | 787.4 | 31 | 787.4 | 31 | 4.8 | 4.8 | 12.7 | 12.7 | 21800 | 65000 | M284249DW/M284210-M284210D | 2490 | ||
| 812.8 | 32 | 1143 | 45 | 768.35 | 30.25 | 768.35 | 30.25 | 6.4 | 6.4 | 12.7 | 12.7 | 21000 | 62500 | 3806/812.8 | 2600 |
| 825.5 | 32.5 | 1168.4 | 46 | 844.55 | 33.25 | 844.55 | 33.25 | 4.8 | 4.8 | 12.7 | 12.7 | 25600 | 76000 | M285848DW/M285810-M285810D | 3040 |
| 863.6 | 34 | 1130.3 | 44.5 | 669.925 | 26.375 | 669.925 | 26.375 | 4.8 | 4.8 | 12.7 | 12.7 | 19500 | 61500 | LM286249DW/LM286210-LM286210D | 2000 |
| 1169.99 | 46.0625 | 844.55 | 33.25 | 844.55 | 33.25 | 4.8 | 4.8 | 12.7 | 12.7 | 23200 | 76000 | 3806/863.6 | 2690 | ||
| 1181.1 | 46.5 | 666.75 | 26.25 | 666.75 | 26.25 | 4.8 | 4.8 | 12.7 | 12.7 | 20000 | 56500 | LM286449D/LM286410-LM286410D | 2140 | ||
| 1219.2 | 48 | 876.3 | 34.5 | 889 | 35 | 4.8 | 4.8 | 12.7 | 12.7 | 27900 | 81000 | EE547341D/547480-547481D | 3480 | ||
| 877.888 | 34.563 | 1220 | 48.0315 | 844.55 | 33.25 | 844.55 | 33.25 | 4.8 | 4.8 | 12.7 | 12.7 | 25000 | 76000 | 3806/877X4 | 3090 |
| 901.7 | 35.5 | 1295.4 | 51 | 901.7 | 35.5 | 914.4 | 36 | 4.8 | 4.8 | 12.7 | 12.7 | 30000 | 86000 | EE634356D/634510-634510D | 4180 |
| 938.213 | 36.938 | 1270 | 50 | 825.5 | 32.5 | 825.5 | 32.5 | 4.8 | 4.8 | 12.7 | 12.7 | 25500 | 81000 | LM287649D/LM287610-LM287610D | 3220 |
| 939.8 | 37 | 1333.5 | 52.5 | 952.5 | 37.5 | 952.5 | 37.5 | 4.8 | 4.8 | 12.7 | 12.7 | 31500 | 94500 | LM287849DW/LM287810-LM287810D | 4500 |
| 1003.3 | 39.5 | 1358.9 | 53.5 | 800.1 | 31.5 | 800.1 | 31.5 | 4.8 | 4.8 | 12.7 | 12.7 | 27200 | 81000 | 3806/1003.3 | 3460 |
| 1139.83 | 44.875 | 1509.71 | 59.4375 | 923.925 | 36.375 | 923.925 | 36.375 | 4.8 | 4.8 | 12.7 | 12.7 | 33000 | 106000 | 3806/1139X4 | 4850 |
| 1200.15 | 47.25 | 1593.85 | 62.75 | 990.6 | 39 | 990.6 | 39 | 4.8 | 4.8 | 12.7 | 12.7 | 37500 | 124000 | LM288949D/LM288910-LM288910D | 5640 |
| 1346.2 | 53 | 1729.74 | 68.1 | 1143 | 45 | 1143 | 45 | 5 | 5 | 12 | 12 | 49000 | 162000 | 3806/1346.2 | 6970 |
Four-Row Tapered Roller Bearings 
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Company Info
NINGBO RUNNING BEARINGS CO.,LTD. [China (Mainland)]
Business Type:Manufacturer, Trading Company
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)
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