They are not visible and usually becomes audible, when it is too late – it is a wheel bearing. We give you the information to a certain state of the art, as well as some practical advice on diagnosis and wheel bearing grease car. As a general rule, professionals in the field of Autoservice recall wheel bearing, when a client complains about the noise of the wheels. But we must not forget that car wheel bearing subject to extreme stress: high temperature extremes, and various environmental influences (not least in salt), and, as a result of the perception of attacks by roughness of the road, drive, brakes and steering – different dynamic loads. Given these circumstances hub bearings should be inspected regularly. It is necessary to pay attention to the fact that wheel should rotate without backlash, with acceptable noise, and minimal friction. In passenger cars, two types of wheel bearing.
To not drive axles, though less frequently, used roller tapered bearings. They are small and lightweight. Due to relatively low pressure at one point can transmit large loads and still be very durable. However, they have one drawback: performance conical bearing is largely dependent on the proper installation. If the bearing is installed properly: his failure is almost programmed. This is true both for initial installation and for subsequent service. On the drive axles are used so-called diagonal ball bearings. From their titles it is clear that the balls are not placed in the middle of the body, but shifted to one side.