More and more people like to replace their car accessories and modify wheels. What do we need to pay attention to in the process of the use and installation of car wheels rims bearings?
In order to maximize the safety and reliability, no matter how long they suggest you should always check the age of car wheels rims bearing - bearing is early warning signal: including any wear friction noise when rotating or hanging combination wheel when cornering speed is not normal. The rear wheel drive vehicle suggests that the vehicle should lubricate the front wheel bearing at 38000 kilometers. When the brake system is replaced, check the bearing and replace the oil seal.
If you car hear the noise from the hub bearing, first of all, it is important to find the location of the noise. There are many moving parts that may produce noise, or some of the rotates are in contact with the non - rotating parts. If the confirmation is the noise in the bearing, the bearing may have been damaged and need to be replaced.
Because the car front wheel hub causes both sides of the bearing failure of the working conditions are similar, so even if only a bearing is broken, it is suggested that the pair replace.
The car wheels rims bearing is more sensitive, and in any case the correct method and appropriate tools are needed. In the process of storage, transportation and installation, the parts of the bearing can not be damaged. Some bearings need greater pressure to press in, so special tools are required and must be referred to the automobile manufacturing instructions.
The installation of car wheel bearings should be in a clean and tidy environment, small particles into the bearing will also shorten the life of the bearing. It is very important to maintain a clean environment when replacing the bearings. Do not allow the use of percussion hammer bearing, bearing attention do not fall on the ground (or similar misconduct). The condition of shaft and bearing seat should also be checked before installation, even small wear and tear will lead to bad fit, which causes early failure of bearing.
For car wheel hub bearing units, do not attempt to open up the car wheel hub bearing or adjust the sealing ring of the hub unit, otherwise, the sealing ring will be damaged, leading to the entry of water or dust. Even the seal ring and the raceway of the inner ring are damaged, causing permanent failure of the bearing.
There is a magnetic thrust ring in the sealing ring equipped with the bearing of the ABS device, which can not be collided, impacted or collided with other magnetic fields. Remove from the box before installation and keep them away from the magnetic field, such as the motor or electric tools used. When these bearings are installed, the ABS alarm pin on the dashboard is observed through the road condition test to change the operation of the bearing.
The car wheel hub bearing with ABS magnetic thrust ring. In order to determine which side of the thrust ring is mounted, we can use a light thing near the edge of the car wheel bearing, and the magnetic force generated by the bearing will attract it. At the time of installation, the magnetic thrust ring will be directed to the inside and the sensitive element of the ABS. Note: incorrect installation may result in the failure of the brake system.
Many car wheel bearings are sealed, and this kind of bearing does not need to add grease for the whole life period. Other unsealed bearings, such as double row tapered roller bearings, must be lubricated by grease for installation. Because the size of the bearing cavity is different, it is difficult to determine how much oil is added. The most important thing is to ensure that there is grease in the bearing. If the grease is too much, when the bearing rotates, the excess grease will exudate. General experience: in the installation, the total amount of oil should account for 50% of the clearance of the bearing.
When the lock nut is installed, the size of the torque is very different because of the difference between the bearing type and the bearing seat.
