Hub bearing is a component used at the automobile axle to load and provide guidance for the rotation of the hub. It bears both axial load and radial load. It is an important part of automobile load and rotation.
Quality of automobile wheel hub bearing
Hub bearing is an important walking part of automobile. The hub bearing is responsible for reducing the friction resistance of the chassis during operation and maintaining the normal driving of the vehicle. If the hub bearing fails, it may cause noise and bearing heating, especially the front wheel, which is easy to lead to dangerous phenomena such as out of control. Therefore, the hub bearing should be maintained on schedule.
1. Inspection of hub bearing
(1) When checking the tightness of the wheel hub bearing, first erect the axle of the wheel at one end of the tested wheel hub of the vehicle, and use the supporting stool, cover wood and other tools to safely erect the vehicle.
(2) Rotate the tested wheel by hand for several turns to see whether the rotation is stable and whether there is abnormal noise. If the rotation is not smooth and there is friction sound, the braking part is abnormal; If there is no noise, the rotation is unstable and tight and loose, it indicates that the bearing part is abnormal. When the above abnormal phenomena occur, the hub should be disassembled and inspected. For small cars, when checking the wheel hub bearing, hold the upper and lower sides of the tire with both hands, pull the tire back and forth with both hands, and repeat for many times. If normal, there should be no feeling of looseness and block; If there is obvious looseness in the swing, dismantle and inspect the hub.
(3) Inspection of braking. Usually, when checking the wheel hub bearing, check the wheel braking device. If there is oil stain on the inner side of the tire, it is likely to be caused by oil leakage of the brake wheel cylinder or brake oil pipe. Find out the cause in time and eliminate it.
