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（III）Inch Tapered Roller Bearings——Inner Diameter 44.45-50.8mm
Provide Professional High-quality Bearings for Over 70 Countries
Built for reliability and strength, DSBR Inch Tapered Roller Bearings offer superior resistance to wear, vibration, and heavy stress. They feature a precision-engineered design that ensures smooth operation and minimal friction, improving machinery efficiency. The separable cone and cup components allow for easy installation and inspection. With strict quality control and ISO-certified production, these bearings provide outstanding performance in demanding sectors like agriculture, mining, and construction.
Specification of Inch Tapered Roller Bearings
| Bearing type | Principal dimensions | Basic load ratings | Reference weight(kg) | |||||||
| (mm) | (KN) | (KN) | ||||||||
| d | D | T | B | C | R | r | Cr | Cor | W | |
| 18685/18620 | 44.45 | 79.375 | 17.462 | 17.462 | 13.495 | 2.8 | 1.5 | 47.1 | 59.1 | 0.345 |
| 25580/25520 | 44.45 | 82.931 | 23.812 | 25.4 | 19.05 | 3.5 | 0.8 | 78 | 100 | 0.554 |
| 25581/25520 | 44.45 | 82.931 | 23.812 | 25.4 | 19.05 | 0.5 | 0.8 | 78 | 100 | 0.558 |
| 3578/3525 | 44.45 | 87.312 | 30.162 | 30.886 | 23.812 | 3.5 | 3.3 | 113 | 134 | 0.77 |
| HM803149/HM803110 | 44.45 | 88.9 | 30.612 | 29.37 | 23.02 | 3.5 | 3.3 | 96.5 | 129 | 0.835 |
| 3782/3720 | 44.45 | 93.264 | 30.162 | 30.302 | 23.812 | 3.5 | 3.3 | 103 | 136 | 0.97 |
| HM903249/HM903210 | 44.45 | 95.25 | 30.958 | 28.575 | 22.225 | 3.5 | 0.8 | 100 | 122 | 1.024 |
| 527/522 | 44.45 | 101.6 | 34.925 | 36.068 | 26.988 | 3.5 | 2.3 | 131 | 159 | 1.365 |
| 59175/59412 | 44.45 | 104.775 | 36.512 | 36.512 | 28.575 | 3.5 | 3.3 | 167 | 202 | 1.54 |
| JW4549/JW4510 | 45 | 95 | 29 | 26.5 | 20 | 2.5 | 2.5 | 118 | 114 | 0.9 |
| 17887/17831 | 45.23 | 79.985 | 19.842 | 20.638 | 15.08 | 2 | 1.3 | 61.3 | 78.4 | 0.397 |
| LM102949/LM102910 | 45.242 | 73.431 | 19.558 | 19.812 | 15.748 | 3.5 | 0.8 | 47 | 70.5 | 0.301 |
| LM603049/LM603011 | 45.242 | 77.788 | 19.842 | 19.842 | 15.08 | 3.5 | 0.8 | 56 | 71 | 0.368 |
| LM603049/LM603012 | 45.242 | 77.788 | 21.43 | 19.842 | 16.667 | 3.5 | 0.8 | 56 | 71 | 0.386 |
| 25590/25520 | 45.618 | 82.931 | 23.812 | 25.4 | 19.05 | 3.5 | 0.8 | 76.5 | 99 | 0.546 |
| 25590/25523 | 45.618 | 82.931 | 26.988 | 25.4 | 22.225 | 3.5 | 2.3 | 76.5 | 99 | 0.591 |
| M804049/M804010 | 47.625 | 88.9 | 25.4 | 25.4 | 19.05 | 3.5 | 3.3 | 86 | 107 | 0.673 |
| HM804846/HM804810 | 47.625 | 95.25 | 30.162 | 29.37 | 23.02 | 3.5 | 3.3 | 106 | 143 | 0.98 |
| 55187/55437 | 47.625 | 111.125 | 30.162 | 26.909 | 20.638 | 3.5 | 3.3 | 92.5 | 110 | 1.331 |
| 55187/55443 | 47.625 | 112.712 | 30.162 | 26.909 | 20.638 | 3.5 | 3.3 | 92.5 | 110 | 1.37 |
| HM807044/HM807010 | 49.212 | 104.775 | 36.512 | 36.512 | 28.575 | 3.5 | 3.3 | 139 | 192 | 1.538 |
| LM503349/LM503310 | 49.987 | 74.975 | 18 | 18 | 14 | 2.3 | 1.5 | 51 | 71.5 | 0.296 |
| 28579/28521 | 49.987 | 92.075 | 24.608 | 25.4 | 19.845 | 2.3 | 0.8 | 84.5 | 117 | 0.712 |
| JLM104948/JLM104910 | 50 | 82 | 21.5 | 21.5 | 17 | 3 | 0.5 | 71 | 96 | 0.435 |
| JLM704649/JLM704610 | 50 | 84 | 22 | 22 | 17.5 | 3.5 | 1.5 | 96.5 | 104.5 | 0.467 |
| JM205149/JM205110 | 50 | 90 | 28 | 28 | 23 | 3 | 2.5 | 104 | 136 | 0.753 |
| JW5049/JW5010 | 50 | 105 | 37 | 29 | 22 | 3 | 3 | 203 | 223 | 1.23 |
| 368/362A | 50.8 | 88.9 | 20.638 | 22.225 | 16.513 | 1.5 | 1.3 | 73 | 85 | 0.507 |
| 368A/362A | 50.8 | 88.9 | 20.638 | 22.225 | 16.513 | 3.5 | 1.3 | 73 | 85 | 0.504 |
| 28580/28521 | 50.8 | 92.075 | 24.608 | 25.4 | 19.845 | 3.5 | 0.8 | 84.5 | 117 | 0.703 |
| 3775/3720 | 50.8 | 93.264 | 30.162 | 30.302 | 23.812 | 0.8 | 3.3 | 103 | 136 | 0.862 |
| 3780/3720 | 50.8 | 93.264 | 30.162 | 30.302 | 23.812 | 3.5 | 3.3 | 103 | 136 | 0.858 |
| HM807046/HM807010 | 50.8 | 104.775 | 36.512 | 36.512 | 28.575 | 3.5 | 3.3 | 139 | 192 | 1.483 |
Diagram of Inch Tapered Roller Bearings
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