Angular Contact Ball Bearing

Four point Angular Contact Ball Bearings

Four-point angular contact ball bearings are radial single-row angular contact ball bearings with raceways designed to support axial loads in both directions. For a given axial load, a limited radial load can also be supported (Load ratio). The bearings are separable, i.e., the outer ring with ball and cage assembly can be mounted separately from the two inner ring halves. Both inner ring halves of four-point contact ball bearings have a recessed shoulder. This improves oil flow when combined with a cylindrical roller bearing. In addition, these recesses can be used to facilitate dismounting.

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Four point Angular Contact Ball Bearings

Four point angular contact ball bearings are radial single-row angular contact ball bearings with raceways designed to support axial loads in both directions. For a given axial load, a limited radial load can also be supported (Load ratio). The bearings are separable, i.e., the outer ring with ball and cage assembly can be mounted separately from the two inner ring halves. Both inner ring halves of four-point contact ball bearings have a recessed shoulder. This improves oil flow when combined with a cylindrical roller bearing. In addition, these recesses can be used to facilitate dismounting.

Four-point Angular Contact Ball Bearing Parameters:

four-point-angular-contact-ball-bearing-1 four-point-angular-contact-ball-bearing-2
Bearing No. Principal dimensions Basic load ratings Fatigue load limit Speed ratings
(mm) (kN) (kN) (r/min)
d D B Dynamic C Static Pu Reference speed Limiting speed
C0
QJ 324 N2MA 120 260 55 415 530 16.3 3200 4500
QJ 224 N2MA 120 215 40 300 365 12 3600 5000
QJ 326 N2MA 130 280 58 455 610 18 3000 4000
QJ 226 N2MA 130 230 40 310 400 12.7 3400 4800
QJ 228 N2MA 140 250 42 345 475 14.3 3200 4300
QJ 328 N2MA 140 300 62 500 695 20 2800 3800
QJ 230 N2MA 150 270 45 400 570 16.6 3000 4000
QJ 330 N2MA 150 320 65 530 765 21.2 2600 3600
QJ 1030 N2MA 150 225 35 242 335 10.4 2800 4500
QJ 332 N2MA 160 340 68 570 880 23.6 2400 3400
QJ 232 N2MA 160 290 48 450 670 19 2800 3800
QJ 1032 N2MA 160 240 38 270 380 11.4 2600 4300
QJ 334 N2MA 170 360 72 655 1040 27 2200 3200
QJ 234 N2MA 170 310 52 455 720 20 2600 3400
QJ 236 N2MA 180 320 52 475 765 20.8 2400 3400
QJ 336 N2MA 180 380 75 680 1100 28 2200 3000
QJ 338 N2MA 190 400 78 702 1160 28.5 1700 2800
QJ 238 N2MA 190 340 55 510 850 22.4 2200 3200
QJ 1038 N2MA 190 290 46 364 560 15.3 2200 3400
QJ 1040 N2MA 200 310 51 390 620 16.6 2000 3200
QJ 240 N2MA 200 360 58 540 915 23.2 1800 3000
QJ 1240 N2MA 200 360 70 520 865 21.6 1800 3000
QJ 344 N2MA 220 460 88 780 1400 32 1500 2400
QJ 1244 N2MA 220 400 78 364 1020 24.5 1800 1800
QJ 344 N2/309829 220 460 88 904 1660 38 1500 2400
QJ 1248 MA/344524 240 440 85 663 1220 28 1500 2400
QJ 248 N2MA 240 440 72 650 1200 27.5 1500 2400
QJ 1252 MA 260 480 90 741 1460 32 1300 2200
QJ 252 N2MA 260 480 80 728 1430 32 1300 2200
QJ 1252 N2MA 260 480 90 741 1460 32 1300 2200
QJ 1256 N2MA 280 500 90 728 1460 31.5 1300 2000
QJ 1056 N2MA/C4 280 420 65 585 1140 25.5 1400 2400
QJ 1260 N2MA 300 540 98 832 1760 36.5 1200 1900
QJ 1060 N2MA 300 460 74 650 1340 29 1300 2200
QJ 1060 MA 300 460 74 650 1340 29 1300 2200
QJ 1264 N2MA 320 580 105 956 2080 41.5 1100 1700
QJ 1064 N2MA 320 480 74 715 1530 32 1200 2000
QJ 1064 MA 320 480 74 715 1530 32 1200 2000
QJ 1268 MA/344524 340 620 118 1060 2450 47.5 1000 1600
QJ 1068 N2MA 340 520 82 780 1700 35.5 1100 1800
QJ 1072 N2MA 360 540 82 852 1930 38 1100 1700
QJ 1272 N2MA 360 650 122 1110 2600 49 950 1500
QJ 1276 N2MA 380 680 132 1170 2850 52 900 1400
QJ 1076 N2MA 380 560 82 819 1900 37.5 1000 1700
QJ 1080 N2MA 400 600 90 904 2160 40.5 950 1500
QJ 1280 N2MA 400 720 140 1300 3250 58.5 800 1300
QJ 1284 N2MA 420 760 150 1430 3750 64 750 1300
QJ 1984 MA 420 560 65 637 1600 30.5 950 1600
QJ 1084 N2MA 420 620 90 923 2280 42.5 900 1500
QJ 1088 N2MA 440 650 94 995 2500 45.5 850 1400
QJ 1988 N2MA 440 600 74 761 1900 35.5 900 1500
QJ 1288 N2MA 440 790 155 1400 3750 64 750 1200
QJ 1092 N2MA 460 680 100 1040 2650 46.5 800 1300
QJ 1292 N2MA 460 830 165 1530 4250 69.5 700 1100
QJ 1096 N2MA 480 700 100 1060 2800 48 750 1300
QJ 1296 N2MA 480 870 170 1680 4750 76.5 670 1100

Four point Angular Contact Ball Bearing Features and Benefits:

  • Accommodates axial loads in both directions
  • Less axial space: These bearings take up considerably less axial length than double-row bearings.
  • High load-carrying capacity: A large number of balls are incorporated, giving the bearing high capacity.
  • Separable design: The split inner ring leads to easier mounting and dismounting of the bearing.
  • It improved oil flow.
  • Minor inner ring deformation when subjected to high clamping forces.

Applications of Four point contact ball bearings:

A four-point angular contact ball bearing simplifies machine designs that combine radial, thrust, and moment loads because it can handle all three simultaneously. They are primarily used for slow to moderate-speed applications or where oscillatory movement is predominant. Four-point contact ball bearings are used in various applications, for example:

  • Agricultural machinery;
  • Earthmoving machinery;
  • Pumps;
  • Industrial machinery for cleaning and bottling;
  • Electric motors;
  • Fitness machines;
  • Machining equipment (steel, glass, marble, wood);
  • Automatic opening systems;
  • Others.

 

We are a reliable china angular contact ball bearing factory. We are one of the best angular contact ball-bearing manufacturers. We provide angular series of contact ball bearing size charts and angular contact ball bearing drawings. We have exported our products to clients worldwide and earned a good reputation because of our superior product quality and after-sales service. We welcome customers at home and abroad to contact us to negotiate business, exchange information, and cooperate with us!

Company Profile

We are a professional bearing exporter in China, producing many different types and sizes of bearings. We can provide you with excellent service in a wide range of bearings with world-class quality, such as deep groove ball bearings, spherical roller bearings, self-aligning ball bearings, cylindrical roller bearings, tapered roller bearings, thrust ball bearings, angular contact ball bearings, needle roller bearings, crossed roller bearings, pillow block bearing, slewing bearings, plain bearings, etc. Bearings can also provide OEM services according to customer requirements. Our bearings products are widely used in various applications, such as port, ship, vehicle, mining, engineering, lifting, environmental protection, oil, chemicals, light industry, metallurgical machinery, the military, etc. Products are exported to the United States, Germany, Japan, Spain, Canada, Italy, France, Finland, South Korea, India, Singapore, Brazil, Australia, and other countries. If you need bearings, please get in touch with us.