Four-Point Contact Bearings Ball Bearings

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Four-Point Contact Bearings Ball Bearings

Four-Point Contact Ball Bearings are radial single-row angular contact ball bearings with raceways that are designed to support axial loads acting in both directions. The QJ series (e.g., QJ2, QJ3) features a split inner or outer ring, which allows for a larger number of balls and thus a higher load-carrying capacity. These bearings require significantly less axial space than double-row designs. While they are primarily designed for pure axial loads, they can handle limited radial loads when the axial load is dominant. Their unique four-point contact geometry ensures stable operation in gearboxes, compressors, and high-thrust industrial equipment.

Bore diameter
15 mm 17 mm 20 mm 25 mm 30 mm 35 mm 40 mm 45 mm 50 mm 55 mm 60 mm 65 mm 70 mm 75 mm 80 mm 85 mm 90 mm 95 mm 100 mm 105 mm 110 mm 120 mm 130 mm 140 mm 150 mm 160 mm 170 mm 180 mm 190 mm 200 mm 220 mm 240 mm 260 mm 280 mm 300 mm 320 mm 340 mm 360 mm 380 mm 400 mm 420 mm 440 mm 460 mm 480 mm
Outside diameter
35 mm 40 mm 47 mm 52 mm 62 mm 72 mm 80 mm 85 mm 90 mm 100 mm 110 mm 120 mm 125 mm 130 mm 140 mm 150 mm 160 mm 170 mm 180 mm 190 mm 200 mm 215 mm 225 mm 230 mm 240 mm 250 mm 260 mm 270 mm 280 mm 290 mm 300 mm 310 mm 320 mm 340 mm 360 mm 380 mm 400 mm 420 mm 440 mm 460 mm 480 mm 500 mm 520 mm 540 mm 560 mm 580 mm 600 mm 620 mm 650 mm 680 mm 700 mm 720 mm 760 mm 790 mm 830 mm 870 mm
Width
11 mm 12 mm 14 mm 15 mm 16 mm 17 mm 18 mm 19 mm 20 mm 21 mm 22 mm 23 mm 24 mm 25 mm 26 mm 27 mm 28 mm 29 mm 30 mm 31 mm 32 mm 33 mm 34 mm 35 mm 37 mm 38 mm 39 mm 40 mm 41 mm 42 mm 43 mm 45 mm 46 mm 47 mm 48 mm 50 mm 51 mm 52 mm 55 mm 58 mm 62 mm 65 mm 68 mm 70 mm 72 mm 74 mm 75 mm 78 mm 80 mm 82 mm 85 mm 88 mm 90 mm 94 mm 98 mm 100 mm 105 mm 118 mm 122 mm 132 mm 140 mm 150 mm 155 mm 165 mm 170 mm
Cage material
Brass Peek
Shoulder diameter outer ring
28.1 mm 32.5 mm 36.3 mm 40.8 mm 43 mm 49 mm 50.8 mm 58.2 mm 59 mm 64.3 mm 66 mm 72 mm 72.5 mm 76.5 mm 81.2 mm 84.7 mm 90 mm 93 mm 97.8 mm 101 mm 106 mm 112 mm 115 mm 117 mm 120 mm 123 mm 128 mm 131 mm 136 mm 139 mm 141 mm 145 mm 148 mm 150 mm 153 mm 156 mm 165 mm 169 mm 176 mm 183 mm 195 mm 196 mm 200 mm 211 mm 213 mm 226 mm 227 mm 243 mm 244 mm 256 mm 259 mm 269 mm 271 mm 276 mm 285 mm 293 mm 300 mm 302 mm 309 mm 326 mm 333 mm 364 mm 365 mm 372 mm 395 mm 397 mm 404 mm 415 mm 424 mm 448 mm 457 mm 477 mm 479 mm 497 mm 513 mm 530 mm 538 mm 544 mm 550 mm 566 mm 577 mm 598 mm 603 mm 623 mm 631 mm 656 mm 688 mm 721 mm
Limiting speed
1.1 X 1000 rpm 1.2 X 1000 rpm 1.3 X 1000 rpm 1.4 X 1000 rpm 1.5 X 1000 rpm 1.6 X 1000 rpm 1.7 X 1000 rpm 1.8 X 1000 rpm 1.9 X 1000 rpm 2 X 1000 rpm 2.2 X 1000 rpm 2.4 X 1000 rpm 2.6 X 1000 rpm 2.8 X 1000 rpm 3 X 1000 rpm 3.2 X 1000 rpm 3.4 X 1000 rpm 3.6 X 1000 rpm 3.8 X 1000 rpm 4 X 1000 rpm 4.3 X 1000 rpm 4.5 X 1000 rpm 4.8 X 1000 rpm 5 X 1000 rpm 5.6 X 1000 rpm 6 X 1000 rpm 6.3 X 1000 rpm 6.7 X 1000 rpm 7 X 1000 rpm 7.5 X 1000 rpm 8 X 1000 rpm 8.5 X 1000 rpm 9 X 1000 rpm 9.5 X 1000 rpm 10 X 1000 rpm 11 X 1000 rpm 12 X 1000 rpm 13 X 1000 rpm 14 X 1000 rpm 15 X 1000 rpm 17 X 1000 rpm 19 X 1000 rpm 20 X 1000 rpm 22 X 1000 rpm 24 X 1000 rpm 28 X 1000 rpm 30 X 1000 rpm 36 X 1000 rpm
Radial dynamic load rating
2858 lbf 3825 lbf 5265 lbf 6075 lbf 7200 lbf 8438 lbf 9562 lbf 11025 lbf 11925 lbf 12600 lbf 14175 lbf 14400 lbf 14738 lbf 17550 lbf 19125 lbf 21712 lbf 22388 lbf 22500 lbf 24750 lbf 26550 lbf 27000 lbf 28125 lbf 30375 lbf 30825 lbf 32850 lbf 34425 lbf 35100 lbf 39600 lbf 41850 lbf 45000 lbf 47700 lbf 48600 lbf 52200 lbf 53100 lbf 54450 lbf 56250 lbf 60750 lbf 63000 lbf 64125 lbf 67500 lbf 68625 lbf 69750 lbf 77625 lbf 81900 lbf 87750 lbf 90000 lbf 93375 lbf 101250 lbf 102375 lbf 106875 lbf 112500 lbf 114750 lbf 117000 lbf 119250 lbf 121500 lbf 128250 lbf 131625 lbf 133200 lbf 146250 lbf 147375 lbf 149175 lbf 153000 lbf 157950 lbf 160875 lbf 163800 lbf 166725 lbf 171225 lbf 175500 lbf 187200 lbf 191700 lbf 198900 lbf 203400 lbf 207675 lbf 215100 lbf 223875 lbf 234000 lbf 238500 lbf 249750 lbf 263250 lbf 292500 lbf 315000 lbf 321750 lbf 344250 lbf 378000 lbf
Radial static load rating
1868 lbf 2565 lbf 3375 lbf 4770 lbf 4860 lbf 6750 lbf 6862 lbf 9338 lbf 11025 lbf 11475 lbf 12600 lbf 13725 lbf 14400 lbf 18675 lbf 20925 lbf 22500 lbf 25200 lbf 25650 lbf 26550 lbf 27450 lbf 29700 lbf 30825 lbf 35100 lbf 38250 lbf 38925 lbf 40500 lbf 43425 lbf 45000 lbf 51300 lbf 52200 lbf 57375 lbf 59625 lbf 68625 lbf 73125 lbf 75375 lbf 76500 lbf 82125 lbf 85500 lbf 90000 lbf 106875 lbf 108000 lbf 119250 lbf 126000 lbf 128250 lbf 137250 lbf 139500 lbf 150750 lbf 156375 lbf 162000 lbf 172125 lbf 191250 lbf 194625 lbf 198000 lbf 205875 lbf 229500 lbf 234000 lbf 247500 lbf 256500 lbf 261000 lbf 270000 lbf 274500 lbf 315000 lbf 321750 lbf 328500 lbf 344250 lbf 382500 lbf 396000 lbf 427500 lbf 434250 lbf 459000 lbf 468000 lbf 486000 lbf 513000 lbf 551250 lbf 562500 lbf 585000 lbf 596250 lbf 630000 lbf 641250 lbf 731250 lbf 843750 lbf 956250 lbf 1068750 lbf
Part Number Bore diameter Outside diameter Width For load direction Seal type Ring material Ball material Radial dynamic load rating Radial static load rating Limiting speed
QJ 1248 MA/344524 240 mm 440 mm 85 mm Four Point Contact Open Chrome Steel Chrome Steel 149175 lbf 274500 lbf 2.4 X 1000 rpm
QJ 252 N2MA 260 mm 480 mm 80 mm Four Point Contact Open Chrome Steel Chrome Steel 163800 lbf 321750 lbf 2.2 X 1000 rpm
QJ 1252 N2MA 260 mm 480 mm 90 mm Four Point Contact Open Chrome Steel Chrome Steel 166725 lbf 328500 lbf 2.2 X 1000 rpm
QJ 1056 N2MA/C4 280 mm 420 mm 65 mm Four Point Contact Open Chrome Steel Chrome Steel 131625 lbf 256500 lbf 2.4 X 1000 rpm
QJ 1256 N2MA 280 mm 500 mm 90 mm Four Point Contact Open Chrome Steel Chrome Steel 163800 lbf 328500 lbf 2 X 1000 rpm
QJ 1060 MA 300 mm 460 mm 74 mm Four Point Contact Open Chrome Steel Chrome Steel 157950 lbf 321750 lbf 2.2 X 1000 rpm
QJ 1260 N2MA 300 mm 540 mm 98 mm Four Point Contact Open Chrome Steel Chrome Steel 187200 lbf 396000 lbf 1.9 X 1000 rpm
QJ 1064 MA 320 mm 480 mm 74 mm Four Point Contact Open Chrome Steel Chrome Steel 160875 lbf 344250 lbf 2 X 1000 rpm
QJ 1064 N2MA 320 mm 480 mm 74 mm Four Point Contact Open Chrome Steel Chrome Steel 160875 lbf 344250 lbf 2 X 1000 rpm
QJ 1264 N2MA 320 mm 580 mm 105 mm Four Point Contact Open Chrome Steel Chrome Steel 215100 lbf 468000 lbf 1.7 X 1000 rpm
QJ 1068 N2MA 340 mm 520 mm 82 mm Four Point Contact Open Chrome Steel Chrome Steel 175500 lbf 382500 lbf 1.8 X 1000 rpm
QJ 1268 MA/344524 340 mm 620 mm 118 mm Four Point Contact Open Chrome Steel Chrome Steel 238500 lbf 551250 lbf 1.6 X 1000 rpm
QJ 1072 N2MA 360 mm 540 mm 82 mm Four Point Contact Open Chrome Steel Chrome Steel 191700 lbf 434250 lbf 1.7 X 1000 rpm
QJ 1272 N2MA 360 mm 650 mm 122 mm Four Point Contact Open Chrome Steel Chrome Steel 249750 lbf 585000 lbf 1.5 X 1000 rpm
QJ 1076 N2MA 380 mm 560 mm 82 mm Four Point Contact Open Chrome Steel Chrome Steel 198900 lbf 459000 lbf 1.6 X 1000 rpm
QJ 1276 N2MA 380 mm 680 mm 132 mm Four Point Contact Open Chrome Steel Chrome Steel 263250 lbf 641250 lbf 1.4 X 1000 rpm
QJ 1080 N2MA 400 mm 600 mm 90 mm Four Point Contact Open Chrome Steel Chrome Steel 203400 lbf 486000 lbf 1.5 X 1000 rpm
QJ 1280 N2MA 400 mm 720 mm 140 mm Four Point Contact Open Chrome Steel Chrome Steel 292500 lbf 731250 lbf 1.3 X 1000 rpm
QJ 1084 N2MA 420 mm 620 mm 90 mm Four Point Contact Open Chrome Steel Chrome Steel 207675 lbf 513000 lbf 1.5 X 1000 rpm
QJ 1284 N2MA 420 mm 760 mm 150 mm Four Point Contact Open Chrome Steel Chrome Steel 321750 lbf 843750 lbf 1.3 X 1000 rpm
QJ 1988 N2MA 440 mm 600 mm 74 mm Four Point Contact Open Chrome Steel Chrome Steel 171225 lbf 427500 lbf 1.5 X 1000 rpm
QJ 1088 N2MA 440 mm 650 mm 94 mm Four Point Contact Open Chrome Steel Chrome Steel 223875 lbf 562500 lbf 1.4 X 1000 rpm
QJ 1288 N2MA 440 mm 790 mm 155 mm Four Point Contact Open Chrome Steel Chrome Steel 315000 lbf 843750 lbf 1.2 X 1000 rpm
QJ 1092 N2MA 460 mm 680 mm 100 mm Four Point Contact Open Chrome Steel Chrome Steel 234000 lbf 596250 lbf 1.3 X 1000 rpm
QJ 1292 N2MA 460 mm 830 mm 165 mm Four Point Contact Open Chrome Steel Chrome Steel 344250 lbf 956250 lbf 1.1 X 1000 rpm
QJ 1096 N2MA 480 mm 700 mm 100 mm Four Point Contact Open Chrome Steel Chrome Steel 238500 lbf 630000 lbf 1.3 X 1000 rpm
QJ 1296 N2MA 480 mm 870 mm 170 mm Four Point Contact Open Chrome Steel Chrome Steel 378000 lbf 1068750 lbf 1.1 X 1000 rpm
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