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Inch Size Tapered Roller Bearings Size Chart

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Inch tapered roller bearings refer to tapered roller bearings whose dimensions are measured in inches, originating from British and American countries.
Inch tapered roller bearings, like metric tapered roller bearings, consist of an inner ring, an outer ring and tapered rolling elements. Due to their designed geometry, tapered roller bearings can withstand combined loads (axial and radial). In addition, this design allows the rollers to continue to roll even if the rollers slip on the outer and inner race tracks.

Inch Tapered Roller Bearings are the most used roller bearings in the market, the materials can be chrome steel, carbon steel, stainless steel, ceramic materials and also ceramic coating which used in different applications, and OEM Service available with CoatMaster Bearings.

Inch size Tapered roller bearings refer to radial thrust rolling bearings in which the rolling elements are tapered rollers. There are two kinds of small cone angle and large cone angle. The small cone angle mainly bears the combined radial and axial loads mainly with radial loads. It is often used in pairs and installed in reverse. The inner and outer races can be installed separately. The radial and axial clearance can be adjusted during installation and use; The large cone angle mainly bears the axial and radial combined loads, which are mainly axial loads. Generally, it is not used alone to support pure axial loads. When configured in pairs (installed with the same name opposite), it can bear pure radial loads.

The single-row tapered roller bearing’s ability to withstand axial load depends on the contact angle, that is, the outer ring raceway angle. The larger the angle, the greater the axial load capacity. The most used tapered roller bearings are single-row tapered roller bearings. In the front wheel hub of the car, a small double-row tapered roller bearing is used. Four-row tapered roller bearings are used in heavy machines such as large cold and hot rolling mills.

Inch Size Tapered Roller Bearings Size Chart

Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
A 4059/A 4138 14.989 34.988 10.998 16.5 13.2 17 000 22 000
11590/11520 15.875 42.862 14.288 21.5 17.6 13 000 17 000
LM 11749/710 17.462 39.878 13.843 26.1 20.8 15 000 18 000
LM 11949/910 19.05 45.237 15.494 33.8 27.5 13 000 16 000
M 12649/610 21.43 50.005 17.526 45.4 38 12 000 15 000
LM 12749/710 21.987 45.237 15.494 33.9 31 12 000 15 000
320/22 X 22 44 15 30.9 29 13 000 15 000
15101/15245 25.4 62 19.05 59.5 57 9 000 11 000
15578/15520 25.4 57.15 17.462 49.1 45.5 10 000 12 000
L 44643/610 25.4 50.292 14.224 32 30 11 000 13 000
M 84548/510 25.4 57.15 19.431 48.8 45 10 000 12 000
L 44649/610 26.988 50.292 14.224 32 30 11 000 13 000
302/28 28 58 17.25 46.6 41.5 10 000 12 000
320/28 X 28 52 16 39 38 10 000 13 000
322/28 B 28 58 20.25 51.9 50 9 500 12 000
1988/1922 28.575 57.15 19.845 58.2 55 10 000 12 000
L 45449/410 29 50.292 14.224 31.8 32.5 11 000 13 000
M 86649/610 30.162 64.292 21.433 60.4 61 8 500 11 000
M 88043/010 30.162 68.262 22.225 67.1 69.5 8 000 10 000
15123/15245 31.75 62 18.161 59.5 57 9 000 11 000
HM 88542/510 31.75 73.025 29.37 86.5 95 7 500 9 000
LM 67048/010 31.75 59.131 15.875 42.8 41.5 9 500 11 000
320/32 X 32 58 17 45.1 46.5 9 000 11 000
14131/14276 33.338 69.012 19.845 65.8 67 8 000 10 000
25877/25821 34.925 73.025 23.812 89.1 88 8 000 9 500
HM 88649/610 34.925 72.233 25.4 83 90 7 500 9 000
HM 89446/410 34.925 76.2 29.37 95.2 106 7 000 8 500
LM 48548 A/510 34.925 65.088 18.034 58 57 8 500 10 000
L 68149/110 34.987 59.131 15.875 40.6 44 9 000 11 000
L 68149/111 34.987 59.975 15.875 40.6 44 9 000 11 000
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
HM 89449/410 36.512 76.2 29.37 95.2 106 7 000 8 500
JL 69349 A/310 38 63 17 45.7 52 8 500 10 000
JL 69349 X/310 38 63 17 45.7 52 8 500 10 000
JL 69349/310 38 63 17 45.7 52 8 500 10 000
418/414 38.1 88.5 26.988 123 114 6 700 8 500
HM 801346 X/310 38.1 82.55 29.37 106 118 6 700 8 000
HM 801346/310 38.1 82.55 29.37 106 118 6 700 8 000
LM 29748/710 38.1 65.088 18.034 53 57 8 000 10 000
LM 29749/710 38.1 65.088 18.034 53 57 8 000 10 000
LM 29749/711 38.1 65.088 19.812 53 57 8 000 10 000
T2EE 040 40 85 33 150 150 6 700 8 000
LM 300849/811 40.987 67.975 17.5 53.6 58.5 8 000 9 500
24780/24720 41.275 76.2 22.225 84.2 86.5 7 000 9 000
3585/3525 41.275 87.312 30.162 126 132 6 300 8 000
HM 803146/110 41.275 88.9 30.162 116 127 6 000 7 500
LM 501349/310 41.275 73.431 19.558 67.6 68 7 500 9 000
LM 501349/314 41.275 73.431 21.43 67.6 68 7 500 9 000
M 802048/011 41.275 82.55 26.543 91.2 91.5 6 700 8 000
25577/25523 42.875 82.931 26.988 99.1 106 6 700 8 000
25580/25520 44.45 82.931 23.812 99.1 106 6 700 8 000
25580/25522 44.45 83.058 23.876 99.1 106 6 700 8 000
25580/25523 44.45 82.931 26.988 99.1 106 6 700 8 000
3782/3720 44.45 93.264 30.163 134 146 5 600 7 000
53178/53377 44.45 95.25 30.958 108 96.5 5 300 7 000
535/532 A 44.45 111.125 38.1 183 190 5 300 6 300
HM 803149/110 44.45 88.9 30.162 116 127 6 000 7 500
HM 903249/210 44.45 95.25 30.958 124 122 5 300 7 000
358 X/354 X 45 85 20.638 87.3 81.5 6 700 8 000
T2ED 045 45 95 36 182 186 6 000 7 000
T7FC 045 45 95 29 110 112 5 300 7 000
LM 102949/910 45.242 73.431 19.558 66 75 7 000 8 500
LM 603049/011 45.242 77.788 19.842 66.8 69.5 7 000 8 500
LM 603049/012 45.242 77.788 21.43 66.8 69.5 7 000 8 500
25590/25520 45.618 82.931 23.812 99.1 106 6 700 8 000
25590/25523 45.618 82.931 26.988 99.1 106 6 700 8 000
LM 503349/310 45.987 74.975 18 62.1 71 7 000 8 500
18690/18620 46.038 79.375 17.462 61.1 62 7 000 8 500
359 S/354 X 46.038 85 20.638 87.3 81.5 6 700 8 000
369 S/362 A 47.625 88.9 20.638 94 91.5 6 300 7 500
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
JLM 104945/910 50 82 21.501 88.9 100 6 300 8 000
JM 205149/110 50 90 28 130 140 6 000 7 500
JM 205149/110 A 50 90 28 130 140 6 000 7 500
T2ED 050 50 100 36 189 200 5 600 6 700
T7FC 050 50 105 32 134 137 4 800 6 300
18790/18720 50.8 85 17.462 62.1 65.5 6 300 8 000
368 A/362 A 50.8 88.9 20.638 94 91.5 6 300 7 500
368 A/362 X 50.8 90 25 94 91.5 6 300 7 500
537/532 X 50.8 107.95 36.512 183 190 5 300 6 300
539/532 X 53.975 107.95 36.512 183 190 5 300 6 300
72212/72487 53.975 123.825 36.512 174 160 4 300 5 600
LM 806649/610 53.975 88.9 19.05 71.5 78 6 000 7 000
T2ED 055 55 110 39 220 232 5 000 6 000
T7FC 055 55 115 34 155 163 4 300 5 600
387 A/382 A 57.15 96.838 21 99.9 102 5 600 6 700
39581/39520 57.15 112.712 30.162 175 204 4 500 5 600
462/453 X 57.15 104.775 30.162 150 160 5 300 6 300
6391/K-6320 59.987 135.755 53.975 353 400 4 000 5 000
JLM 508748/710 60 95 24 103 132 5 300 6 700
T2EE 060 60 115 40 239 260 4 800 5 600
T7FC 060 60 125 37 190 204 4 000 5 300
395/394 A 63.5 110 22 108 118 4 800 6 000
39585/39520 63.5 112.712 30.162 175 204 4 500 5 600
3982/3920 63.5 112.712 30.163 152 183 4 800 5 600
JLM 710949/910 65 105 24 122 137 5 000 6 000
JM 511946/910 65 110 28 152 183 4 800 5 600
T2DD 065 65 110 31 170 193 4 800 6 000
T7FC 065 65 130 37 194 216 3 800 5 000
6379/K-6320 65.088 135.755 53.975 353 400 4 000 5 000
395 A/394 A 66.675 110 22 108 118 4 800 6 000
395 S/394 A 66.675 110 22 108 118 4 800 6 000
39590/39520 66.675 112.712 30.162 175 204 4 500 5 600
3984/3920 66.675 112.712 30.162 152 183 4 800 5 600
6386/K-6320 66.675 135.755 53.975 353 400 4 000 5 000
482/472 69.85 120 29.795 163 186 4 500 5 300
566/563 69.85 127 36.512 217 255 4 300 5 000
T2ED 070 70 130 43 289 325 4 000 5 000
T7FC 070 70 140 39 219 240 3 400 4 500
33281/33462 71.438 117.475 30.162 152 190 4 500 5 300
H 715345/311 71.438 136.525 46.038 273 355 3 800 4 500
567/563 73.025 127 36.512 217 255 4 300 5 000
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
JH 415647/610 75 145 51 380 450 3 600 4 500
JM 714249/210 75 120 31 170 216 4 300 5 300
42687/42620 76.2 127 30.162 171 204 4 000 5 000
47678/47620 76.2 133.35 33.338 202 260 3 800 4 800
575/572 76.2 139.992 36.512 227 280 3 800 4 500
34306/34478 77.788 121.442 24.608 115 134 4 300 5 300
42690/42620 77.788 127 30.163 171 204 4 000 5 000
JM 515649/610 80 130 35 216 275 4 000 4 800
580/572 82.55 139.992 36.512 227 280 3 800 4 500
663/653 82.55 146.05 41.275 270 320 3 600 4 300
749 A/742 82.55 150.089 44.45 351 405 3 600 4 300
T7FC 085 85 170 48 333 380 2 800 3 800
497/492 A 85.725 133.35 30.163 178 220 3 800 4 500
593/592 A 88.9 152.4 39.688 237 305 3 400 4 300
6580/6535 88.9 161.925 53.975 404 510 3 200 4 000
HM 218248/210 89.975 146.975 40 280 355 3 400 4 300
6581 X/6535 90 161.925 53.975 404 510 3 200 4 000
JM 718149 A/110 90 145 35 246 305 3 600 4 300
JM 718149/110 90 145 35 246 305 3 600 4 300
598/592 A 92.075 152.4 39.688 237 305 3 400 4 300
594 A/592 A 95.25 152.4 39.688 237 305 3 400 4 300
594/592 A 95.25 152.4 39.688 237 305 3 400 4 300
683/672 95.25 168.275 41.275 288 365 3 000 3 800
HM 220149/110 99.975 156.975 42 303 400 3 200 4 000
T2EE 100 100 165 47 383 480 3 200 3 800
T4CB 100 100 145 24 154 190 3 400 4 300
687/672 101.6 168.275 41.275 288 365 3 000 3 800
HH 224335/310 101.6 212.725 66.675 619 830 2 200 3 000
56425/56650 107.95 165.1 36.512 256 355 3 000 3 600
64432/64708 109.975 179.975 41.275 307 415 2 800 3 400
64450/64700 114.3 177.8 41.275 307 415 2 800 3 400
68450/68712 114.3 180.975 34.925 227 280 2 800 3 400
938/932 114.3 212.725 66.675 626 765 2 600 3 200
T4CB 120 120 170 27 195 250 2 800 3 600
48290/48220 127 182.562 39.688 281 440 2 600 3 200
67391/67322 133.35 196.85 46.038 395 585 2 400 3 000
L 327249/210 133.35 177.008 25.4 166 280 2 600 3 200
HM 231132/110 139.7 236.538 57.15 629 850 2 200 2 600
T4CB 140 140 195 29 241 325 2 400 3 000
T4DB 150 150 210 32 287 390 2 200 2 800
LM 330448/410 152.4 203.2 41.275 251 480 2 400 2 800
L 432348/310 158.75 205.583 23.812 168 280 2 200 2 800
L 432349/310 158.75 205.583 23.813 168 280 2 200 2 800
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
T4DB 160 160 220 32 257 415 2 000 2 600
HH 437549/510 165.1 336.55 92.075 1 198 1 700 1 400 1 900
T4DB 170 170 230 32 307 440 2 000 2 600
M 336948/912 178.595 265.112 51.595 532 880 1 700 2 200
M 336949/912 179.934 265.112 51.595 532 880 1 700 2 200
T4DB 180 180 240 32 309 450 2 000 2 400
87737/87111 187.325 282.575 50.8 427 695 1 600 2 000
JM 738249/210 190 260 46 443 765 1 800 2 200
87750/87111 190.5 282.575 50.8 427 695 1 600 2 000
LL 639249/210 196.85 241.3 23.812 189 315 1 900 2 400
67981/67919 198.298 279.4 46.038 465 830 1 600 2 000
67982/67919 199.949 279.4 46.038 465 830 1 600 2 000
T4DB 200 200 270 37 401 600 1 700 2 200
67983/67920 203.2 282.575 46.038 465 830 1 600 2 000
67985/67920 206.375 282.575 46.038 465 830 1 600 2 000
H 242649/610 206.375 336.55 98.425 1 230 2 160 1 300 1 800
LM 245846/810 230.188 317.5 47.625 556 980 1 300 1 800
LM 245848/810 231.775 317.5 47.625 556 980 1 300 1 800
T4EB 240 240 320 42 458 815 1 300 1 700
HH 953749/710 254 533.4 133.35 2 012 2 750 800 1 100
M 349547/510 255.6 342.9 57.15 698 1 400 1 200 1 600
M 249747/710 257.175 358.775 71.438 1 030 1 760 1 300 1 600
M 349549/510 257.175 342.9 57.15 698 1 400 1 200 1 600
BT1B 332973 260 540 109 2 120 3 050 850 1 300
38880/38820 263.525 325.438 28.575 273 550 1 400 1 700
L 555249/210 292.1 374.65 47.625 539 1 140 1 100 1 500
LM 757049/010 304.8 406.4 63.5 775 1 700 1 000 1 300
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
HM 259048/010/HA4 317.5 447.675 85.725 1 363 2 700 900 1 200
HM 261049/010 333.375 469.9 90.488 1 428 2 850 850 1 200
LM 361649/610 342.9 450.85 66.675 1 000 2 200 900 1 200
LM 361649 A/610 343.154 450.85 66.675 1 000 2 200 900 1 200
HM 262749/710 346.075 488.95 95.25 1 533 3 150 850 1 100
431884 A 355.65 482.65 60.32 572 1 200 850 1 300
L 865547/512 381 479.425 49.213 638 1 500 800 1 100
LM 567949/910/HA1 406.4 549.275 85.725 1 467 3 050 700 950
LM 869448/410 431.8 571.5 74.612 1 145 2 550 670 900
L 570649/610 457.2 573.088 74.612 1 205 3 000 670 900
LM 272235/210 457.2 615.95 85.725 1 593 3 800 600 800
LM 770949/910 457.2 603.25 85.725 1 541 3 400 630 850
BT1-8003/HA1 479.425 717.55 136.525 3 030 6 800 530 800
BT1B 332529/HA1 479.425 679.45 128.588 2 750 6 300 560 850
EE 243190/243250 482.6 634.873 80.962 1 584 3 650 600 800
LM 772748/710/HA1 488.95 634.873 84.138 1 450 3 650 600 850
EE 243196/243250/HA2 498.475 634.873 80.962 1 470 3 650 600 850
EE 982051/982900 520.7 736.6 88.9 1 650 3 350 530 750
BT1B 328017/HA4 536.575 820 152 3 910 7 800 450 670
M 276449/410 536.575 761.873 146.05 3 360 8 000 500 670
L 476549 AX/510 549.199 692.15 80.963 1 340 3 450 530 1 100
EE 843220/843290 558.8 736.6 88.108 1 963 4 150 500 670
LM 377449/410 558.8 736.6 104.775 2 482 5 700 500 670
BT1B 334140/HA4 660.4 1 000 152.4 4 652 9 500 360 480
L 281147/110 660.4 812.8 95.25 2 086 5 600 430 560
BT1B 332787/HA4 680 1 000 190 5 610 12 700 360 500
BT1B 332705/HA4 682.625 1 080 200 6 710 13 200 320 480
BT1B 332890/HA1 710 950 113 2 860 6 550 360 530
LM 283649/610/HA1 749.3 990.6 159.5 4 903 12 000 340 450
LL 483449/418 762 889 69.85 1 320 3 800 380 500
EE 763330/763410 838.2 1 041.4 93.663 2 140 5 200 320 430
BT1B 328214/HA5 900 1 180 122 3 960 9 150 260 360
BT1-8010/HA4 1 270 1 465 100 3 407 10 800 180 240