Car wheel bearings are used in pairs over a maximum single row tapered roller or ball bearings. With the development of technology, the car has been widely used car wheel unit. The growing scope and use of hub bearing unit, has now developed to the third generation: the first generation is composed of ball and roller combined bearing a double row angular contact bearings. The second generation of the outer raceway for bearing a fixed flange ball bearing sleeve may simply be fixed with a nut on the axle. Makes the car maintenance becomes easy. The third generation wheel hub bearing units are using a bearing unit and ABS anti-lock brake system compatible. Wheel hub unit designed to have the inner flange and an outer flange, the flange is bolted to the drive shaft, the outer flange of the bearing mounted together. Worn or damaged wheel bearing or hub units will happen to your vehicle anachronistic and higher cost of failure in traveling the road, or even damage to your safety. Wheel bearings in use and installation Please note the following:
1, in order to ensure maximum safety and reliability, it is recommended that you no matter how long the age of the vehicle should always check the wheel bearings - note bearing for wear mobile crane bearing early warning signals: including any friction noise when rotating or turning wheel suspension combination when the deceleration is not normal. Rear-wheel drive vehicle is recommended for the vehicle to 38,000 km is to deal with the front wheel hub bearing lubrication. When replacing the brake system, check the bearing and replace the seal.
2, If you hear noise emitted wheel bearing parts, first of all, it is important to find the location of the noise occurs. There are many moving parts may produce noise, but also may be some rotation member and the rotating member occurs without contact. If the confirmation is bearing noise, bearing may be damaged and need replacing.
3, because the front wheel bearing failure on both sides led to similar working conditions, so even if only one bearing bad, it is recommended to replace in pairs.
4, wheel bearing more sensitive, in any case need to adopt the right approach and the right tools. In storage and during installation, the bearing parts can not be damaged. Angular contact ball bearings Requires a large number of bearings pressed into the pressure, so the need of special tools. Be sure to reference vehicle manufacturers instructions.
5, the installation of the bearing should clean environment, small particles from entering the bearing will shorten bearing life. When replacing bearings to maintain a clean environment is very important. Allowed to tap with a hammer bearing note bearing not fall to the ground (or similar improper handling). Before installing the shaft and the bearing housing should also check the condition of even a small amount of wear can also lead to poor fit, thereby causing early failure of the bearing.
6, on the wheel hub bearing unit, do not attempt to disassemble or adjust the wheel hub bearing seals unit, otherwise it would cause water damage to seals or dust from entering. Even ring and inner ring raceway are damaged, resulting in permanent failure of the bearing.
7, the ring is equipped with ABS unit has a magnetic thrust bearing ring, which thrust ring can not be a collision, impact or collision with other magnetic field. Remove from the box before wind power bearing installation, so that they stay away from magnetic fields, such as the use of electric motors or electric tools. When installing these bearings, the road test by observing the dashboard ABS alarm pin to change the bearing operation.
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