Four-Point Angular Contact Ball Bearings

The four-point angular contact ball bearing is separable. Its inner and outer ring raceway has peach-shaped cross section. When carrying no load or radial load only, the steel ball and ring appear as four-point contact, which is the name origin of this bearing. Compared with other ball bearings, it has smaller axial clearance when having same radial clearance, so it has higher limit speed.

The four-point angular contact ball bearing has variants among which the QJ type has split inner ring while the QJF type has split outer ring. Both types have WBJF patented cage. The cage is featured by easy filling and secure locking of balls. The types using this kind of cage have “YA8” at the end of their type code.

推力球轴承1

four point contact ball bearings  

Main Technical Parameters of Four-Point Angular Contact Ball Bearings

Types Basic Sizes Basic load ratings (kN) Limit speed (rpm) Weight (kg)
dxDxB Dynamic(Cr) Static (Cor) Grease lubricating Oil lubricating
QJ(F)1020M 100x150x24 79 128 3200 4300 1.63
QJ220N2 100x180x34 152 215 2800 3800 3.91
QJ320N2 100x215x47 249 372 2400 3400 8.78
QJ(F)1022M 110x170x28 113 186 2800 3800 2.68
QJ222N2 110x200x38 194 284 2600 3400 5.71
QJ322N2 110x240x50 280 442 2200 3000 12.0
QJ(F)1024M 120x180x28 158 225 2600 3500 2.78
QJ224 120x215x40 209 318 2400 3200 6.29
QJF324N2MA 120x260x55 312 516 2000 2800 14.8
QJ(F)1026 130x200x33 186 254 2400 3300 3.47
QJ226N2 130x230x40 226 369 2200 3000 7.43
QJ326 130x280x58 328 562 1900 2600 20.7
QJ(F)1028 140x210x33 206 273 2200 3000 4.10
QJ228N2 140x250x42 252 436 2000 2800 10.4
QJ328 140x300x62 361 646 1700 2400 23.3
QJ(F)1030 150x225x35 219 298 2000 2800 5.29
QJ230N2 150x270x45 259 469 1800 2600 12.0
QJ330 150x320x65 417 796 1600 2200 29.4
QJ(F)1032M 160x240x38 234 336 1900 2600 6.54
QJ232N2 160x290x48 286 533 1700 2400 15.2
QJ(F)1034 170x260x42 251 409 1800 2400 8.06
QJ234N2 170x310x52 352 687 1600 2200 18.7
QJ(F)1036 180x280x46 265 481 1700 2200 10.9
116736HA 180×259.5×52
QJ236 180x320x52 364 735 1500 2000 18.0
QJ336 180x380x75 530 1125 1500 2000 46.2
QJ(F)1038 190x290x46 250 480 1600 2200 11.5
QJ238 190x340x55 380 790 1500 2000 22.6
176738 190x280x55 230 450 1600 2200 11.6
QJ(F)1040 200x310x51 300 620 1500 2000 14.7
116740 200×289.5×50 250 500 1500 2000 13.8
QJF240 200x360x58 400 850 1300 1800 27.3
QJ340N2 200x420x80 570 1260 1200 1600 55.3
QJ1044 220x340x56 305 650 1200 1700 17.8
116844 220x300x60 130 210 1450 1950 12.4
QJ1048 240x360x56 330 750 1100 1500 20.9
116848 240x340x60 170 305 1300 1750 17.3
176748 240×329.5×60 150 270 1300 1750 15.3
QJ1052 260x400x65 390 910 980 1200 31.5
176752 260×369.5×60 155 275 1200 1600 20.6
116752YS 260×374.5×60 155 275 1200 1600 21.7
116753H 266.6x355x35 175 340 1250 1600 9.59
116754 270×389.5×60 215 415 1100 1500 23.6
QJ(F)1056 280x420x65 410 1010 960 1000 34.4
116956 280×389.5×65 200 390 1050 1400 23.8
116756K 280×389.5×46 200 390 1050 1400 16.8
QJ(F)1060 300x460x74 465 1224 900 1100 48.2
116760 300×439.5×65 260 540 970 1300 33.4
116860 300x420x65 235 485 1000 1350 27.9
116761H 304.8x412x40 180 350 1000 1350 15.2
QJ(F)1064 320x480x74 290 635 850 1230 47.0
QJF2964X2 320x440x65 230 460 880 1250 29.4
QJ(F)1076 380x560x82 375 900 670 890 68.8
116788 430×619.5×100 405 1050 600 800 98.9
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