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NINGBO RUNNING BEARINGS CO.,LTD.
M270749ADW/M270710/M270710CD Four-Row Tapered Roller Bearings, China 270749ADW/M270710/M270710CD TIMKEN Four-Row Tapered Roller Bearin Manufacturer
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| Model: | M270749ADW/M270710/M270710CD |
| Place of Origin: | Zhejiang,China (Mainland) |
| Brand Name: | RNB OR NATURAL |
| Number of Row: | Four row |
| Type: | Roller bearing |
| Material of race: | Chrome steel |
| Material of roller: | Chrome steel |
| Precision: | Class 2 |
| Payment & Shipping Terms | Supply Capacity | ||
|---|---|---|---|
| Payment Terms: | L/C, T/T, WU | Production Capacity: | 100000 Piece/Pieces... |
| Min. Order: | 1 Piece/Pieces | Packing: | RNB OR Industrial... |
| Means of Transport: | Ocean, Air | Delivery Date: | 35 days |
Four-Row Tapered Roller Bearings M270749ADW/M270710/M270710CD
Dimension: 447.675*635*463.55mm, Weight: 479kg.
Four-row tapered roller bearings providemaximumcapacityin minimum space, combining theinherenthigh-load,radial/thrustcapacityand direct/indirect mount ingvariables of tapered roller bearings.
Their main application is on the roll necks ofrollingmillequipment.Allfour-row bearings are supplied aspre-setmatchedassemblies with all components identified to ensurecorrect installation sequence.
TQO (Straight Bore Four-Row Assembly)
TQO bearings are directly mounted and comprised of two double innerraces,two single and one double outer race, with an inner race spacerand two outer race spacers.
Slots in the inner race spacer permit lubricant to flow from the bearing chamber 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 | ||||||
| 133.35 | 5.25 | 196.85 | 7.75 | 193.675 | 7.625 | 193.675 | 7.625 | 1.5 | 1.5 | 3.3 | 3.3 | 970 | 2370 | K67390D/K67322-K67322D | 20.2 |
| 177.8 | 7 | 247.65 | 9.75 | 192.088 | 7.562 | 192.088 | 7.5625 | 1.5 | 1.5 | 3.3 | 3.3 | 1070 | 3000 | K67791DGW/K67720-K67721D | 28.6 |
| 187.325 | 7.375 | 269.875 | 10.625 | 211.138 | 8.3125 | 211.138 | 8.3125 | 1.5 | 1.5 | 3.3 | 3.3 | 1570 | 3430 | KM238849D/KM238810-KM238810D | 41.5 |
| 190.5 | 7.5 | 266.7 | 10.5 | 187.325 | 7.375 | 188.912 | 7.4375 | 1.5 | 1.5 | 3.3 | 3.3 | 1280 | 3200 | 67885D/67820-67820D | 32.9 |
| 198.438 | 7.8125 | 284.162 | 11.1875 | 225.425 | 8.875 | 225.425 | 8.875 | 1.5 | 1.5 | 3.3 | 3.3 | 1280 | 3200 | M240648DD/M240611-M240611D | 32.9 |
| 203.2 | 8 | 317.5 | 12.5 | 266.7 | 10.5 | 266.7 | 10.5 | 1.5 | 1.5 | 3.3 | 3.3 | 2400 | 4850 | 93800D/93125-93127D | 76.3 |
| 206.375 | 8.125 | 282.575 | 11.125 | 190.5 | 7.5 | 190.5 | 7.5 | 0.8 | 0.8 | 3.3 | 3.3 | 1030 | 2830 | K67986D/K67920-K67921D | 34.4 |
| 282.575 | 11.125 | 190.5 | 7.5 | 190.5 | 7.5 | 0.8 | 0.8 | 3.3 | 3.3 | 1030 | 2830 | 67986D/67920-67921D | 34.4 | ||
| 282.575 | 11.125 | 226 | 8.8976 | 226 | 8.8976 | 0.6 | 0.6 | 3.3 | 3.3 | 1200 | 3200 | 3806/206X4 | 40.3 | ||
| 220.662 | 8.6875 | 314.325 | 12.375 | 239.712 | 9.4375 | 239.712 | 9.4375 | 1.5 | 1.5 | 3.3 | 3.3 | 2090 | 4900 | KM244249D/KM244210-KM244210D | 60.2 |
| 314.325 | 12.375 | 239.712 | 9.4375 | 239.712 | 9.4375 | 1.5 | 1.5 | 3.3 | 3.3 | 2160 | 4900 | M244249DW/M244210-M244210D/HEC9 | 60.2 | ||
| 314.325 | 12.375 | 239.712 | 9.4375 | 239.712 | 9.4375 | 1.5 | 1.5 | 3.3 | 3.3 | 2000 | 4500 | M244249DGW/M244210-M244210D/HEC9 | 59.8 | ||
| 221.224 | 8.7096 | 355.498 | 13.996 | 228.6 | 9 | 228.6 | 9 | 1.5 | 1.5 | 3.3 | 3.3 | 2100 | 4900 | EE127094D/127138-127139D | 81.8 |
| 228.6 | 9 | 311.15 | 12.25 | 200.025 | 7.875 | 200.025 | 7.875 | 1.5 | 1.5 | 3.3 | 3.3 | 1560 | 3650 | LM245149D/LM245110-LM245110D | 43.9 |
| 311.15 | 12.25 | 200.025 | 7.875 | 200.025 | 7.875 | 1.5 | 1.5 | 3.3 | 3.3 | 1560 | 3650 | LM245149DGW/LM245110-LM245110D | 43.9 | ||
| 400.05 | 15.75 | 296.875 | 11.688 | 296.875 | 11.688 | 3.3 | 3.3 | 3.3 | 3.3 | 3300 | 5650 | EE529091D/529157-529158XD | 148 | ||
| 241.478 | 9.507 | 349.148 | 13.746 | 228.6 | 9 | 228.6 | 9 | 1.5 | 1.5 | 3.3 | 3.3 | 2050 | 4350 | EE127097D/127135-127136D | 71.9 |
| 349.148 | 13.746 | 228.6 | 9 | 228.6 | 9 | 1.5 | 1.5 | 3.3 | 3.3 | 2050 | 4350 | KEE127097D/K127135-K127136D | 71.9 | ||
| 244.475 | 9.625 | 327.025 | 12.875 | 193.675 | 7.625 | 193.675 | 7.625 | 3.3 | 1.5 | 3.3 | 3.3 | 1740 | 3930 | KLM247748DW/KLM247710-KLM247710D | 42.7 |
| 327.025 | 12.875 | 193.675 | 7.625 | 193.675 | 7.625 | 3.3 | 1.5 | 3.3 | 3.3 | 1740 | 4050 | LM247748DW/LM247710-LM247710D | 42.7 | ||
| 254 | 10 | 358.775 | 14.125 | 269.875 | 10.625 | 269.875 | 10.625 | 3.3 | 3.3 | 3.3 | 3.3 | 2720 | 6050 | M249748D/M249710-M249710D | 88.9 |
| 358.775 | 14.125 | 269.875 | 10.625 | 269.875 | 10.625 | 3.3 | 3.3 | 3.3 | 3.3 | 2720 | 6050 | M249748DW/M249710-M249710D | 88.9 | ||
| 358.775 | 14.125 | 269.875 | 10.625 | 269.875 | 10.625 | 3.3 | 3.3 | 3.3 | 3.3 | 2720 | 6050 | K3M249748DW/K3M249710-K3M249710D-3 | 88.9 | ||
| 260.35 | 10.25 | 422.275 | 16.625 | 314.325 | 12.375 | 317.5 | 12.5 | 6.4 | 6.4 | 3.3 | 3.3 | 4100 | 7900 | HM252348D/HM252310-HM252310D | 182 |
| 266.7 | 10.5 | 355.6 | 14 | 230.188 | 9.0625 | 228.6 | 9 | 3.3 | 1.5 | 3.3 | 3.3 | 1950 | 5560 | KLM451349DW/KLM451310-KLM451310D | 65.3 |
| 355.6 | 14 | 230.188 | 9.0625 | 228.6 | 9 | 3.3 | 1.5 | 3.3 | 3.3 | 1950 | 5800 | LM451349DW/LM451310-LM451310D | 63.9 | ||
| 355.6 | 14 | 230.188 | 9.0625 | 228.6 | 9 | 1.6 | 1.6 | 3.3 | 3.2 | 1700 | 4800 | K76589/K76520-K76520D | |||
| 269.875 | 10.625 | 381 | 15 | 282.575 | 11.125 | 282.575 | 11.125 | 3.3 | 3.3 | 3.3 | 3.3 | 2930 | 7550 | M252349DW/M252310-M252310D | 105 |
| 276.225 | 10.875 | 393.7 | 15.5 | 269.875 | 10.625 | 269.875 | 10.625 | 1 | 1 | 6.4 | 6.4 | 2880 | 6200 | 3806/276X4 | 105 |
| 279.4 | 11 | 393.7 | 15.5 | 269.875 | 10.625 | 269.875 | 10.625 | 1.5 | 1.5 | 6.4 | 6.4 | 2880 | 6200 | KEE135111DW/K135155-K135156D | 103 |
| 393.7 | 15.5 | 269.875 | 10.625 | 269.875 | 10.625 | 1.5 | 1.5 | 6.4 | 6.4 | 2880 | 6200 | EE135111D/135155-135156D | 103 | ||
| 393.7 | 15.5 | 269.875 | 10.625 | 269.875 | 10.625 | 1.5 | 1.5 | 6.4 | 6.4 | 2880 | 6200 | EE135111DW/135155-135156DW/HEC9 | 103 | ||
| 393.7 | 15.5 | 269.875 | 10.625 | 269.875 | 10.625 | 1.5 | 1.5 | 6.4 | 6.4 | 2880 | 6200 | EE135111DW/135155-135156DW | 103 | ||
| 288.925 | 11.375 | 406.4 | 16 | 298.45 | 11.75 | 298.45 | 11.75 | 3.3 | 3.3 | 3.3 | 3.3 | 3400 | 8150 | M255449DW/M255410-M255410D | 125 |
| 406.4 | 16 | 298.45 | 11.75 | 298.45 | 11.75 | 3.3 | 3.3 | 3.3 | 3.3 | 3400 | 8150 | M255449D/M255410-M255410D | 125 | ||
| 292.1 | 11.5 | 422.275 | 16.625 | 269.875 | 10.625 | 269.875 | 10.625 | SP | SP | 3.3 | 3.3 | 3450 | 7950 | EE330116D/330166-330167D | 126 |
| 300.038 | 11.813 | 422.275 | 16.625 | 311.15 | 12.25 | 311.15 | 12.25 | 3.3 | 3.3 | 3.3 | 3.3 | 3700 | 9400 | HM256849D/HM256810-HM256810D | 142 |
| 304.648 | 11.994 | 438.048 | 17.246 | 280.99 | 11.0626 | 279.4 | 11 | 3.3 | 3.3 | 4.8 | 4.8 | 3000 | 6650 | M757448D/M757410-M757410D | 130 |
| 438.048 | 17.246 | 280.99 | 11.0626 | 279.4 | 11 | 3.3 | 3.3 | 4.8 | 4.8 | 3000 | 6650 | M757448DW/M757410-M757410D | 130 | ||
| 304.8 | 12 | 419.1 | 16.5 | 269.875 | 10.625 | 269.875 | 10.625 | 1.5 | 1.5 | 6.4 | 6.4 | 2850 | 6800 | M257149D/M257110-M257110D | 112 |
| 482.6 | 19 | 365.125 | 14.375 | 377.825 | 14.875 | 3.3 | 3.3 | 3.3 | 3.3 | 4950 | 10300 | 3806/304.8 | 266 | ||
| 495.3 | 19.5 | 342.9 | 13.5 | 342.9 | 13.5 | 2 | 2 | 6.4 | 6.4 | 5000 | 9200 | 3806/304.8-1 | 243 | ||
| 501.65 | 19.75 | 336.55 | 13.25 | 336.55 | 13.25 | 2 | 2 | 6.4 | 6.4 | 4650 | 9200 | 3806/304.8-2 | 255 | ||
| 304.902 | 12.004 | 412.648 | 16.246 | 266.7 | 10.5 | 266.7 | 10.5 | 3.3 | 3.3 | 3.3 | 3.3 | 2930 | 7000 | M257248DW/M257210-M257210D | 102 |
| 305 | 12.008 | 438.048 | 17.246 | 280.99 | 11.0626 | 279.4 | 11 | 3.3 | 3.3 | 4.8 | 4.8 | 2980 | 6600 | M757449DW/M757410-M757410D | 129 |
| 317.5 | 12.5 | 422.275 | 16.625 | 269.875 | 10.625 | 269.875 | 10.625 | 1.5 | 1.5 | 3.3 | 3.3 | 2980 | 8100 | LM258648DW/LM259610-LM258610D | 104 |
| 438.15 | 17.25 | 276.225 | 10.875 | 276.225 | 10.875 | 1.5 | 1.5 | 3.3 | 3.3 | 3450 | 8200 | 3806/317.5 | 132 | ||
| 447.675 | 17.625 | 327.025 | 12.875 | 327.025 | 12.875 | 3.3 | 3.3 | 3.3 | 3.3 | 4650 | 10700 | HM259049D/HM259010-HM259010D | 163 | ||
| 330.2 | 13 | 444.5 | 17.5 | 301.625 | 11.875 | 301.625 | 11.875 | 3.3 | 3.3 | 3.3 | 3.3 | 3550 | 9600 | M260149DW/M260110-M260110D | 134 |
| 330.302 | 13.004 | 438.023 | 17.245 | 247.65 | 9.75 | 254 | 10 | 1.5 | 1.5 | 3.3 | 3.3 | 2500 | 7300 | EE138131D/138172-138173XD | 109 |
| 333.375 | 13.125 | 469.9 | 18.5 | 342.9 | 13.5 | 342.9 | 13.5 | 3.3 | 3.3 | 3.3 | 3.3 | 4100 | 10100 | HM261049DW/HM261010-HM261010D | 186 |
| 341.312 | 13.438 | 457.098 | 17.996 | 254 | 10 | 254 | 10 | 2 | 1.5 | 3.3 | 3.3 | 2350 | 7400 | LM761648DW/LM761610-LM761610D | 112 |
| 457.098 | 17.996 | 254 | 10 | 254 | 10 | 2 | 1.5 | 3.3 | 3.3 | 2740 | 7050 | LM761648D/LM761610-LM761610D-3 | 112 | ||
| 342.9 | 13.5 | 533.4 | 21 | 307.985 | 12.1254 | 301.625 | 11.875 | 3.3 | 3.3 | 3.3 | 3.3 | 4650 | 8750 | EE971355D/972100-972103D | 239 |
| 571.5 | 22.5 | 342.9 | 13.5 | 342.9 | 13.5 | 3.3 | 3.3 | 6.4 | 6.4 | 6200 | 11500 | EE536136D/536225-536226D | 366 | ||
| 343.052 | 13.506 | 457.098 | 17.996 | 254 | 10 | 254 | 10 | 2 | 1.5 | 3.3 | 3.3 | 2670 | 7400 | K1-LM761649DW/LM761610-LM761610D | 110 |
| 457.098 | 17.996 | 254 | 10 | 254 | 10 | 2 | 1.5 | 3.3 | 3.3 | 2670 | 7350 | LM761649DW/LM761610-LM761610D | 110 | ||
| 457.098 | 17.996 | 254 | 10 | 254 | 10 | 1.5 | 1.5 | 3.3 | 3.3 | 2800 | 6900 | LM761649DWSH/LM761610SH-LM761610DSH-3 | 111 | ||
| 345.281 | 13.594 | 488.95 | 19.25 | 358.775 | 14.125 | 358.775 | 14.125 | 3.3 | 3.3 | 3.3 | 3.3 | 4800 | 12400 | 3806/345X4 | 239 |
| 346.075 | 13.625 | 488.95 | 19.25 | 358.775 | 14.125 | 358.775 | 14.125 | 3.3 | 3.3 | 3.3 | 3.3 | 4800 | 12400 | HM262749D/HM262710-HM262710D | 221 |
| 347.662 | 13.688 | 469.9 | 18.5 | 292.1 | 11.5 | 292.1 | 11.5 | 3.3 | 3.3 | 3.3 | 3.3 | 2600 | 7950 | M262449D/M262410-M262410D | 142 |
| 469.9 | 18.5 | 260.35 | 10.25 | 260.35 | 10.25 | 1.5 | 1.5 | 3.3 | 3.3 | 3750 | 10100 | LM262449DW/LM262410-LM262410D | 129 | ||
| 355.6 | 14 | 482.6 | 19 | 269.875 | 10.625 | 265.114 | 10.4376 | 1.5 | 1.5 | 3.3 | 3.3 | 2570 | 7440 | 3806/355.6/HCC9 | 139 |
| 488.95 | 19.25 | 317.5 | 12.5 | 317.5 | 12.5 | 1.5 | 1.5 | 3.3 | 3.3 | 3150 | 10000 | M263349D/M263310-M263310D | 177 | ||
| 488.95 | 19.25 | 317.5 | 12.5 | 317.5 | 12.5 | 1.5 | 1.5 | 3.3 | 3.3 | 4750 | 11000 | M263349D/M263310-M263310D-XRS | 165 | ||
| 368.3 | 14.5 | 523.875 | 20.625 | 382.588 | 15.0625 | 382.588 | 15.0625 | 3.3 | 3.3 | 6.4 | 6.4 | 6200 | 14800 | HM265049DW/HM265010-HM265010D | 274 |
| 374.65 | 14.75 | 501.65 | 17.948 | 250.825 | 9.875 | 260.35 | 10.25 | 1.5 | 1.5 | 3.3 | 3.3 | 3120 | 7550 | EE231475D/231975-231976D | 141 |
| 384.175 | 15.125 | 546.1 | 21.5 | 400.05 | 15.75 | 400.05 | 15.75 | 3.3 | 3.3 | 6.4 | 6.4 | 6120 | 16400 | HM266449DW/HM266410-HM266410CD | 310 |
| 546.1 | 21.5 | 400.05 | 15.75 | 400.05 | 15.75 | 1.5 | 1.5 | 6.4 | 6.4 | 5200 | 12000 | HM266449DW/HM266410-HM266410D-XRS/C9YB2 | 293 | ||
| 385.762 | 15.188 | 514.35 | 20.25 | 317.5 | 12.5 | 317.5 | 12.5 | 3.3 | 3.3 | 3.3 | 3.3 | 4150 | 11000 | LM665949DW/LM665910-LM665910D | 189 |
| 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 | ||
Applications
Low- and medium-speed rolling mills
Four-Row Tapered Roller Bearings 
Category: Four row tapered roller bearing
Related Category: Single row tapered roller bearing Double row Tapered roller bearing
