Four Point Angular Contact Ball Bearing

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Four Point Angular Contact Ball Bearing

Four point angular contact ball bearing consists of a outer ring with peach-shaped groove, double half inner rings and steel and copper ball cage. It is mainly used in the machine tools, rolling mill rolls and large diesel engine gear boxes as supports bearing greater thrust load.

QJ four point angular contact ball bearing is a kind of bidirectional single row angular contact ball bearing. As a result of the special design of the groove in the inner and outer ring, it has two contact points with 35° or 45° contact angle between every groove and ball, and so the product can bear bidirectional axial load. It has high limited speed and is suitable for the high-speed operation. It allows the bearing to load a number of balls due to its combined inner ring with double half rings, thus giving a higher load bearing capacity.

The double half inner rings and outer ring with balls and cages can be installed respectively due to its separation design. When the four point angular contact ball bearing is combined with the radial bearing, it is regarded as thrust bearing. In order to prevent the outer ring from rotation in a circumferential direction, the outer ring has two spaced 180° configuration of the positioning groove

Technical Parameters of Four Point Angular Contact Ball Bearing
Principal Dimensions(mm) Designation Basic Load ratings(KN) Limited Speed(rpm) Weight
(kg )
d D B Dynamic load Static load Grease Oil
30 62 16 QJS206 24 16.8 6500 8000 0.26
30 62 16 QJ206 30 21.6 6800 8200 0.26
30 72 19 QJS306 37.2 26.5 5500 7000 0.48
30 72 19 QJ306 43.1 30.8 6000 7500 0.48
35 72 17 QJS207 28 24 6200 6800 0.36
35 72 17 QJ207 31.3 27 6500 7200 0.36
35 80 21 QJS307 41.3 36.5 5800 6400 0.58
35 80 21 QJ307 18.5 41.6 6000 6600 0.58
40 80 18 QJS208 33 28.1 5900 6300 0.4
40 80 18 QJ208 36.1 32 6100 6700 0.4
40 90 23 QJS308 56.8 50.8 5600 6100 0.85
40 90 23 QJ308 61.3 56.5 5900 6400 0.85
45 85 19 QJS209 36.4 33.8 5200 6500 0.45
45 85 19 QJ209 39.2 35.2 5800 6600 0.45
45 100 25 QJS309 64.6 59.1 4600 5800 0.94
45 100 25 QJ309 73.1 68.2 5700 6300 0.94
50 90 20 QJS210 37.6 34.6 4800 5500 0.52
50 90 20 QJ210 49 45 4800 5500 0.52
50 110 27 QJS310 66.2 62.8 4300 6000 1.28
50 110 27 QJ310 76.5 72.2 4600 6200 1.28

XRT Bearing is a China-based four point angular contact ball bearing manufacturer and supplier. We provide a comprehensive range of products, including spherical roller bearing, pillow block bearing, two row taper roller bearing, and more.

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  • Single Row Angular Contact Ball BearingSingle row angular contact ball bearing can only withstand one direction of the axial load. The rolling body load line and radial load line is not in the same radial plane generating an internal axial force, so the product must be installed in pairs. Its structure can be divided into separation type, non-separation type and paired configuration.
  • Double Row Angular Contact Ball BearingDouble row angular contact ball bearing can withstand the combined load of mainly radial and axial load and torque load. It is mainly used in the shaft and shell component which restricts the bidirectional axial displacement. Our product has limited tilt between the inner ring and outer ring. The range of tilt angle depends on the bearing internal clearance, the bearing size, internal design and the forces ...