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NINGBO RUNNING BEARINGS CO.,LTD.
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M238849DW/810/810CD 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
TQO (Straight Bore Four-Row Assembly)
TQOW (Straight Bore with Cone Face Lubrication Slots)
TQIT (Tapered Bore Four-Row Assembly)
Four-Row Tapered Roller BearingsM238849DW/810/810CD
Four-row tapered roller bearings providemaximumcapacity in minimum space, combining theinherenthigh-load,radial/thrustcapacity and direct/indirect mount ingvariables of tapered roller bearings.
Their main application is on the roll necks of rollingmillequipment.Allfour-row bearings are supplied as pre-setmatchedassemblies with all components identified to ensure correct installation sequence.
TQO (Straight Bore Four-Row Assembly)M238849DW/810/810CD
TQO bearings are directly mounted and comprised of two double inner races,two single and one double outer race, with an inner race spacer and two outer race spacers.
Slots in the inner race spacer permit lubricant to flow from thebearingchamber to the roll neck.The inner race spacers are hardened to minimize face wear.
Size range:
ID 50.800 mm to 1500.000 mm (2.0000 in. to 59.0551 in.)
OD 83.337 mm to 2032.000 mm (3.2810 in. to 80.0000 in.)
Design Attributes
Two double cones, two single cups and a double cup with a cone spacer and two cup spacers.
Spacers have slots or holes for lubrication.
Cone spacers are hardened to reduce face wear.
Numbered serially to assure correct installation sequence.
| 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 | ||||||
| 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 |
Applications
Low- and medium-speed rolling mills
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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