Inch Size Single Row Taper Roller Bearing
Applications
Inch-size single-row tapered roller bearings are widely used in industries requiring high load capacity, precision, and durability. Common applications include:
Automotive Industry – Wheel hubs, transmissions, and differentials
Heavy Machinery – Construction, mining, and material handling equipment
Industrial Gearboxes – High-load power transmission systems
Railway Industry – Axle systems, traction motors, and bogies
Agricultural Equipment – Tractors, combines, and harvesting machinery
Aerospace & Defense – Landing gear and specialized machinery
Key Benefits
High Load Capacity – Designed to handle both radial and axial loads efficiently
Superior Durability – Manufactured using high-quality materials for extended service life
Precision & Stability – Maintains accurate shaft alignment under heavy loads
Low Friction & High Efficiency – Reduces energy loss and enhances performance
Easy Installation & Maintenance – Simplifies assembly and servicing, reducing downtime
An inch size single row taper roller bearing is a type of rolling element bearing that is designed to support both radial and axial loads. It consists of an inner ring, an outer ring, tapered rollers, and a cage. The angle between the outer raceway and the bearing axis is designed to provide increased axial load capacity.

| Designation | Basic Dimensions mm | Weight | Size mm/in | |||||
| d | D | T | kg | d | d1 | B | C | |
| mm/in | ≈ | |||||||
| M231649/M231610 | 152,400 | 222,250 | 46,830 | 5,80 | 152,400 | 186 | 46,830 | 34,925 |
| 6,0000 | 8,7500 | 1,8437 | 6,0000 | 1,843 | 1,3750 | |||
| 99600/99100 | 254,000 | 86,675 | 12,5 | 199 | 66,675 | 47,625 | ||
| 10,0000 | 2,6250 | 2,6250 | 1,8750 | |||||
| BT1B328833 | 155,575 | 336,550 | 85,725 | 33,5 | 155,575 | 253 | 79,450 | 54,030 |
| 6,1250 | 13,2500 | 3,3750 | 6,1250 | 3,1280 | 2,1272 | |||
| L432343/L432310 | 158,750 | 205,583 | 23,812 | 1,90 | 158,750 | 181 | 23,812 | 18,258 |
| 46780/46720 | 6,2500 | 8,0938 | 0,9375 | 6,2500 | 0,9375 | 0,7188 | ||
| 225,425 | 41,275 | 5,30 | 196 | 39,688 | 33,338 | |||
| 8,8750 | 1,6250 | 1,1625 | 1,3125 | |||||
| BT1B440771C | 165 | 290 | 63,500 | 17,5 | 165 | 224 | 68 | 48 |
| 5,4961 | 5,4961 | 2,5000 | 5,4961 | 2,6772 | 1,8898 | |||
| 46790/46720 | 165,100 | 225,425 | 41,275 | 4,75 | 165,100 | 196 | 39,688 | 33,338 |
| 6,5000 | 8,6750 | 1,3250 | 6,5000 | 1,5625 | 1,3125 | |||
| HH437549/HH437510 | 336,500 | 92,075 | 37,0 | 243 | 95,250 | 69,850 | ||
| 13,2500 | 3,6250 | 3,7500 | 2,7500 | |||||
| 3699D/36920 | 177,000 | 227,012 | 30,162 | 2,95 | 177,000 | 203 | 30,162 | 23,020 |
| 7,0000 | 8,9375 | 1,1875 | 70,000 | 1,1875 | 0,9063 | |||
| M236849/M236810 | 260,350 | 53,975 | 9,35 | 216 | 53,975 | 41,275 | ||
| 10,2500 | 2,1250 | 2,1250 | 1,6250 | |||||
| M336948/M336912 | 178,595 | 265,112 | 51,595 | 9,60 | 178,595 | 217 | 57,150 | 38,895 |
| 7,0313 | 10,4375 | 2,0313 | 7,0313 | 2,2500 | 1,5313 | |||
| M336949/M336912 | 179,934 | 265,112 | 51,595 | 9,40 | 179,934 | 217 | 57,150 | 38,895 |
| 7,0840 | 10,4375 | 2,0313 | 7,0840 | 2,2500 | 1,5313 | |||
| 67883/67820 | 184,150 | 266,700 | 47,625 | 8,20 | 184,150 | 233 | 46,833 | 38,100 |
| 7,2500 | 10,5000 | 1,8750 | 7,2500 | 1,8438 | 1,5000 | |||
| M238849/M238810 | 187,325 | 269,875 | 55,562 | 9,85 | 187,325 | 228 | 55,562 | 42,662 |
| 7,3750 | 10,6250 | 2,1875 | 7,3750 | 2,1875 | 1,6875 | |||
| 87737/87111 | 282,55 | 50,800 | 9,80 | 233 | 47,625 | 36,512 | ||
| 11,1250 | 2,0000 | 1,8750 | 1,4375 | |||||
| M239447/M239410 | 189,738 | 279,400 | 52,388 | 11,0 | 189,738 | 233 | 57,150 | 41,275 |
| 7,4700 | 11,0000 | 2,0625 | 7,4700 | 2,2500 | 1,6250 | |||
| M239449/M239410 | 190,475 | 279,400 | 528,388 | 11 | 190,475 | 233 | 57,150 | 41,275 |
| 7,490 | 11,0000 | 2,0625 | 7,490 | 2,2500 | 1,6250 | |||
| 67885/67820 | 190,500 | 266,700 | 47,625 | 8.2 | 190,500 | 233 | 46,833 | 38,100 |
| 7,5000 | 10,5000 | 1,8750 | 7,5000 | 1,8438 | 1,5000 | |||
| 87750/97111 | 282,575 | 50,800 | 9.6 | 233 | 47,625 | 36,512 | ||
| 11,1250 | 2,0000 | 1,8750 | 1,4375 | |||||
| M239448A/M239410 | 191,237 | 279,400 | 53,975 | 10.5 | 191,237 | 232 | 58,738 | 41,275 |
| 7,5290 | 11,0000 | 2,1250 | 7,5290 | 2,3125 | 1,6250 | |||
| LM/730749/LM739710 | 196,850 | 257,175 | 39,688 | 5.4 | 196,850 | 229 | 39,688 | 30,162 |
| 7,7500 | 10,1250 | 1,5625 | 7,7500 | 1,5625 | 1,1875 | |||
| LM241147/LM241110 | 200,025 | 276,225 | 42,862 | 7.7 | 200,025 | 237 | 46,038 | 34,133 |
| 7,8750 | 10,8750 | 1,6875 | 7,8750 | 1,8125 | 1,3438 | |||
| LL641149/LL641110 | 203,200 | 261,142 | 28,575 | 3.75 | 203,200 | 230 | 27,783 | 21,433 |
| 8,0000 | 10,2812 | 1,1250 | 8,0000 | 1,0938 | 0,8438 | |||
| 67983/67920 | 282,575 | 46,038 | 8.95 | 246 | 46,038 | 36,512 | ||
| 11,1250 | 1,8125 | 1,8125 | 1,4375 | |||||
| LM241148/LM241110 | 203,987 | 276,225 | 42,662 | 7.25 | 203,987 | 237 | 46,038 | 34,133 |
| 8,0310 | 10,8750 | 16,875 | 8,0310 | 1,8125 | 1,3438 | |||
| 67985/67920 | 206,375 | 282,575 | 46,038 | 8.6 | 206,375 | 247 | 46,038 | 36,512 |
| 8,1250 | 11,1250 | 1,8125 | 8,1250 | 1,8125 | 1,4375 | |||
| H242649/H242610 | 336,550 | 98,425 | 34 | 269 | 100,012 | 77,788 | ||
| 12,2500 | 3,8750 | 3,9375 | 3,0625 | |||||
| BT1B332465 | 210 | 260 | 30 | 3.4 | 210 | 237 | 30 | 21,5 |
| 8,2677 | 10,2362 | 1,1811 | 8,2677 | 1,1811 | 0,8465 | |||
| 332284 | 300 | 54,500 | 11.4 | 245 | 51 | 45 | ||
| 11,8110 | 2,1457 | 2,0079 | 1,7717 | |||||
| LM742745/LM742710 | 212,725 | 285,750 | 46,038 | 8 | 212,725 | 253 | 46,038 | 34,925 |
| 8,3750 | 11,2500 | 1,8125 | 8,3750 | 1,8125 | 1,3750 | |||
| 332110 | 215,900 | 285,750 | 46,038 | 7.9 | 215,900 | 253 | 46,038 | 34,925 |
| 8,6000 | 11,2500 | 1,8125 | 8,6000 | 1,8125 | 1,3750 | |||
| LM742447A/LM742710 | 216,713 | 286 | 46,038 | 7.8 | 216,713 | 253 | 49,212 | 34,925 |
| 8,5320 | 11,2500 | 1,8125 | 8,5320 | 1,9375 | 1,3750 | |||
| LM245832/LM245810 | 220,116 | 317,500 | 47,625 | 12.5 | 220,116 | 268 | 52,338 | 36,512 |
| 8.666 | 12,5000 | 1,8750 | 8,6660 | 2,0625 | 1,4375 | |||
| LM245833/LM245810 | 220,878 | 317,500 | 47,325 | 12.5 | 220,878 | 268 | 52,338 | 36,512 |
| 8,6960 | 12,5000 | 1,8750 | 8,6960 | 2,0625 | 1,4375 | |||
| LM245846/LM245810 | 230,188 | 317,500 | 47,625 | 11 | 230,188 | 268 | 52,338 | 36,512 |
| 9,0625 | 12,5000 | 1,8750 | 9,0625 | 2,0625 | 1,4375 | |||
| LM245848/LM245810 | 231,775 | 317,500 | 47,625 | 10.5 | 231,775 | 268 | 52,338 | 36,512 |
| 9,1250 | 12,5000 | 1,8750 | 9,1250 | 2,0625 | 1,4375 | |||
| 332255A | 242 | 406 | 97 | 49 | 242 | 318 | 95 | 75 |
| 9,5276 | 15,9843 | 3,8189 | 9,5276 | 3,7402 | 2,9528 | |||
| HH249949/HH249910 | 247,650 | 406,400 | 115,888 | 60 | 247,650 | 323 | 117,475 | 93,662 |
| 9,7500 | 16,0000 | 4,5625 | 9,7500 | 4,6250 | 3,6875 | |||
| BT1B417708 | 255 | 560 | 123 | 123 | 255 | 408 | 105 | 70 |
| 10,0640 | 22,0472 | 4,8425 | 10,0640 | 4,1339 | 2,7559 | |||
| M349549/M349510 | 257,175 | 342,900 | 57,150 | 14 | 257,175 | 297 | 57,150 | 44,450 |
| 10,1250 | 13,5000 | 2,2500 | 10,1250 | 2,2500 | 1,7500 | |||
| 33800/38820 | 263,525 | 325,438 | 28,575 | 53 | 263,525 | 294 | 28,575 | 25,400 |
| 10,3750 | 12,8125 | 1,1250 | 10,3750 | 1,1250 | 1,0000 | |||
| LM451347/LM451310 | 265 | 355,600 | 57,150 | 16 | 265 | 310 | 62,000 | 44,450 |
| 10,4331 | 14,0000 | 2,2500 | 10,4331 | 2,4409 | 1,7500 | |||
| BT1B446356A | 266,560 | 325,438 | 29,500 | 5.1 | 266,560 | 293 | 33,470 | 25,480 |
| 10,4995 | 12,8125 | 1,1614 | 10,4995 | 1,3177 | 1,0003 | |||
| BT1B443884AE | 266,700 | 325,438 | 27,755 | 5.1 | 266,700 | 293 | 31,880 | 25,480 |
| 104,995 | 128,125 | 1,097 | 10,5000 | 1,2551 | 1,0031 | |||
| LM451349/LM451310 | 355,600 | 57,150 | 15.5 | 310 | 57,150 | 44,450 | ||
| 140,000 | 22,500 | 2,2500 | 1,7500 | |||||
| 32956 | 280 | 380 | 63,500 | 20 | 280 | 329 | 63,500 | 48 |
| 110,236 | 149,606 | 25,000 | 11,0236 | 2,5000 | 1,8898 | |||
| 32056X | 420 | 87 | 40.5 | 348 | 87 | 65 | ||
| 165,354 | 34,252 | 3,4252 | 2,5591 | |||||
| L555240/L555210 | 292,100 | 374,650 | 47,625 | 12 | 292,100 | 331 | 47,625 | 34,925 |
| 11,5000 | 14,7500 | 1,8750 | 11,5000 | 1,8750 | 1,3750 | |||
| BT1B617089B | 304,800 | 546,100 | 171,053 | 170 | 304,800 | 416 | 171,130 | 140,170 |
| 12,0000 | 21,500 | 6,7344 | 12,0000 | 6,7374 | 5,5185 | |||
| BT1B440009 | 330,200 | 415,925 | 47,625 | 14.3 | 330,200 | 374 | 47,625 | 34,925 |
| 13,0000 | 16,3750 | 1,8750 | 13,0000 | 1,8750 | 1,3750 | |||
| EE523130/526190 | 482,600 | 85,725 | 48.5 | 402 | 80,167 | 603,725 | ||
| 19,0000 | 3,3750 | 3,1562 | 2,3750 | |||||
| HM261049/HM261010 | 333,375 | 469,900 | 90,488 | 47 | 333,375 | 400 | 90,488 | 71,438 |
| 13,1250 | 18,5000 | 3,5625 | 13,1250 | 3,5625 | 2,125 | |||
| 32968 | 340 | 460 | 76 | 35 | 340 | 399 | 76 | 57 |
| 13,3858 | 18,1102 | 2,9921 | 13,3858 | 2,9921 | 2,2441 | |||
| LM361649A/LM361610 | 343,154 | 450,850 | 66,675 | 28 | 343,154 | 394 | 66,675 | 52,388 |
| 13,5100 | 17,7500 | 2,6250 | 13,5100 | 2,6250 | 2,0625 | |||
| HM262749/HM262710 | 346,075 | 488,950 | 95,250 | 55 | 346,075 | 413 | 952,500 | 74,612 |
| 13,6250 | 19,2500 | 3,7500 | 13,6250 | 3,7500 | 2,9375 | |||
| 431884A | 355,600 | 482,600 | 60,320 | 26.5 | 355,600 | 415 | 55,560 | 38,100 |
| 14,0000 | 19,0000 | 2,3748 | 14,0000 | 2,1874 | 1,5000 | |||
| BT1B880-332420 | 380,100 | 480 | 50 | 20.5 | 380,100 | 431 | 48,080 | 35,080 |
| 14,9606 | 18,8976 | 1,9685 | 14,9606 | 1,8929 | 1,3811 | |||
| L865547/L865512 | 381 | 479,425 | 49,212 | 20 | 381 | 431 | 47,625 | 34,925 |
| 15,0000 | 18,8750 | 1,9375 | 15,0000 | 1,8750 | 1,3750 | |||
| HM266449/HM266410 | 384,175 | 546,100 | 104.775 | 77 | 384,175 | 458 | 104,775 | 82,550 |
| 15,1250 | 21,5000 | 4,1250 | 15,1250 | 4,1250 | 3,2500 | |||
| LL566848/LL566810 | 403,225 | 460,375 | 28,575 | 6.7 | 403,225 | 430 | 28,575 | 20,638 |
| 15,8750 | 18,1250 | 1,1250 | 15,8750 | 1,1250 | 0,8125 | |||
| M268749/M268710 | 415,925 | 590,550 | 114,300 | 120 | 415,925 | 497 | 114,300 | 88,900 |
| 16,3750 | 23,2500 | 4,5000 | 16,3750 | 4,5000 | 3,5000 | |||
| EE241693/242375 | 430,212 | 603,250 | 76,200 | 59 | 430,212 | 506 | 73,025 | 50,800 |
| 16,9375 | 23,7500 | 3,0000 | 16,9375 | 2,8750 | 2,0000 | |||
| BT1B332529/HA1 | 479,425 | 679,450 | 128,588 | 145 | 479,425 | 572 | 128,660 | 101,680 |
| 18,8750 | 26,7500 | 5,0625 | 18,8750 | 5,0654 | 4,0031 | |||
| EE243196/243250 | 482,600 | 634,873 | 80,962 | 67.5 | 482,600 | 556 | 80,962 | 63,500 |
| 19,0000 | 24,9950 | 3,1875 | 19,0000 | 3,1875 | 2,5000 | |||
| EE243196AX/243250 | 498,399 | 634,873 | 80,962 | 60 | 498,399 | 556 | 80,962 | 63,500 |
| 19,6220 | 24,9950 | 3,1875 | 19,6220 | 3,1875 | 2,5000 | |||
| EE243196/243250 | 498,475 | 634,873 | 80,962 | 60 | 498,475 | 556 | 80,962 | 63,500 |
| 19,6320 | 24,9950 | 3,1875 | 19,6250 | 3,1875 | 2,5000 | |||
| EE243196AS/243250 | 498,653 | 634,873 | 80,962 | 59.5 | 498,653 | 556 | 80,962 | 63,500 |
| 19,6320 | 24,9950 | 3,1875 | 19,6320 | 3,1875 | 2,5000 | |||
| M276449/M276410 | 536,575 | 761,873 | 146,050 | 208 | 536,575 | 641 | 146,050 | 114,300 |
| 21,1250 | 29,9950 | 5,7500 | 272 | 21,1250 | 5,7500 | 4,5000 | ||
| BT1B328017/HA4 | 820 | 152 | 664 | 146 | 112 | |||
| 32,2835 | 5,9842 | 5,7480 | 4,4094 | |||||
| LL575349/LL575310 | 539,750 | 635,000 | 50,800 | 27 | 539,750 | 594 | 50,800 | 38,100 |
| 21,2500 | 25,0000 | 2,0000 | 21,2500 | 2,0000 | 1,5000 | |||
| L476549/L476510 | 549,275 | 692,150 | 80,963 | 67 | 549,275 | 615 | 80,963 | 61,913 |
| 21,6250 | 27,2500 | 3,1875 | 21,6250 | 3,1875 | 2,4375 | |||
| BT1B334818/HA5 | 560 | 1080 | 265 | 1060 | 560 | 784 | 235 | 208 |
| 22,0472 | 42,5197 | 10,4331 | 22,0472 | 9,2520 | 8,1890 | |||
| EE649239/649310 | 607,720 | 787,400 | 93,662 | 110 | 607,720 | 687 | 93,662 | 69,850 |
| 23,9260 | 31,0000 | 3,6875 | 23,9260 | 3,6875 | 2,7500 | |||
| EE649240/649310 | 609,600 | 787,400 | 93,662 | 110 | 609,600 | 687 | 93,662 | 69,850 |
| 24,0000 | 3,1,0000 | 3,6875 | 110 | 24,0000 | 3,6875 | 2,7500 | ||
| EE649240AX/649310 | 787,400 | 93,662 | 687 | 93,662 | 69,850 | |||
| 31,0000 | 3,6875 | 3,6875 | 2,7500 | |||||
| EK-88780/EK-80720/CL3 | 635 | 736,600 | 57,150 | 37 | 635 | 682 | 53,975 | 41,275 |
| 25,0000 | 29,0000 | 2,2500 | 25,0000 | 2,1250 | 1,6250 | |||
| L281147/L281110 | 660,400 | 812,800 | 95,250 | 105 | 660,400 | 734 | 95,250 | 73,025 |
| 26,0000 | 32,0000 | 3,7500 | 287 | 26,0000 | 3,7500 | 2,8750 | ||
| 332383 | 939,800 | 136,525 | 410 | 784 | 127,080 | 98,500 | ||
| 37,0000 | 5,3750 | 5,0031 | 3,8780 | |||||
| BT1B334140/HA4 | 1000 | 152,400 | 816 | 142,240 | 113,665 | |||
| 39,3701 | 6,0000 | 5,6000 | 4,4750 | |||||
| LM281949/LM281810 | 679,450 | 901,700 | 142,875 | 242 | 679,450 | 780 | 142,875 | 111,125 |
| 26,750 | 35,5000 | 5,6250 | 26,750 | 5,6250 | 4,3750 | |||
| BT1B332787/HA4 | 680 | 1000 | 190 | 485 | 680 | 829 | 188 | 140 |
| 6,7716 | 39,3701 | 7,4803 | 6,7716 | 7,4016 | 5,5118 | |||
| 332283 | 682,625 | 965,200 | 185,738 | 420 | 682,625 | 813 | 185,810 | 142,950 |
| 26,8750 | 38,0000 | 7,3125 | 26,8750 | 7,3154 | 5,6280 | |||
| BT1B332705/HA4 | 1080 | 200 | 640 | 853 | 195 | 142 | ||
| 42,5197 | 7,8740 | 7,6772 | 5,9055 | |||||
| EE655270/655345 | 685,800 | 876,300 | 93,662 | 130 | 685,800 | 771 | 92,075 | 69,850 |
| 27,0000 | 34,5000 | 3,6875 | 27,0000 | 3,6250 | 2,7500 | |||
| BT1B332890/HA1 | 710 | 950 | 113 | 200 | 710 | 816 | 106 | 80 |
| 27,9528 | 37,0000 | 4,4488 | 27,9528 | 4,1732 | 3,1496 | |||
| BT1B328868/HA4 | 711,200 | 939,800 | 120,650 | 206 | 711,200 | 836 | 115,380 | 73,330 |
| 28,5000 | 37,0000 | 4,7500 | 28,0000 | 4,5425 | 2,8870 | |||
| EE755285/755360 | 723,900 | 914,400 | 84,138 | 115 | 723,900 | 798 | 80,962 | 60,325 |
| 28,5000 | 36,0000 | 3,3125 | 28,5000 | 3,1875 | 2,3750 | |||
| LL582949/LL582910B | 736,600 | 825,500 | 31,750 | 22.5 | 736,600 | 778 | 31,750 | 25,400 |
| 29,0000 | 32,5000 | 1,2500 | 29,0000 | 1,2500 | 1,0000 | |||
| EE752305/752380 | 774,700 | 965,200 | 93,662 | 131 | 774,700 | 853 | 80,962 | 66,675 |
| 30,5000 | 38,0000 | 3,6875 | 20,5000 | 3,1875 | 2,6250 | |||
| EE763330/763410 | 838,200 | 1,041,400 | 93,662 | 160 | 838,200 | 925 | 88,900 | 66,675 |
| 33,0000 | 41,0000 | 3,6875 | 33,0000 | 3,5000 | 2,6250 | |||
| EE157337/157430 | 857,250 | 1,092,200 | 120,650 | 245 | 857,250 | 967 | 111,125 | 76,200 |
| 33,7500 | 43,0000 | 4,7500 | 33,7500 | 4,3750 | 3,0000 | |||
| JL286948/JL286910 | 928 | 1060 | 92 | 119 | 928 | 993 | 90 | 76 |
| 36,5354 | 41,7323 | 3,6220 | 36,5354 | 3,5433 | 2,9921 | |||
| JL286948/JL286910 | 930 | 1060 | 92 | 117 | 930 | 993 | 63,500 | 76 |
| 36,6142 | 41,7323 | 3,6220 | 36,6142 | 2,5000 | 2,9921 | |||
| LL687949/LL687910 | 977,900 | 1,130,300 | 66,675 | 100 | 977,900 | 1046 | 63,500 | 47,625 |
| 38,5000 | 44,5000 | 2,6250 | 38,5000 | 2,5000 | 1,8750 | |||
Applications of Inch Size Single Row Taper Roller Bearing
These bearings are commonly used in various industrial applications, including automotive transmissions, gearboxes, and wheel hubs. Their design allows for efficient distribution of heavy radial and axial loads, making them suitable for high-speed operations with minimal friction.
Advantages of Inch Size Single Row Taper Roller Bearing
High Load Capacity
Inch size single row taper roller bearings are able to withstand high radial and axial loads due to their unique design. This makes them ideal for applications where heavy loads are present, such as in automotive and industrial machinery.
Precision Engineering
These bearings are manufactured with precision engineering techniques to ensure consistent performance and long service life. The tapered rollers and raceways are carefully designed to minimize friction and reduce wear, resulting in smooth operation even under harsh conditions.
