1, In order to ensure maximum safety and reliability, we advise you to always check the wheel bearing no matter how long the vehicle age - pay attention to whether the bearing wear early warning signal: including any friction noise when rotating or suspension combination wheel in turn Not normal deceleration. For rear-wheel drive vehicles, it is recommended that the front wheel hub bearings be lubricated when the vehicle is traveling to 38,000 km. When replacing the brake system, check the bearings and replace the oil seal.
2, If you hear the hub bearing parts of the noise, first of all, it is important to find the location of noise occurs. There are many moving parts that may generate noise, but it is also possible that some rotating parts come into contact with non-rotating parts. If it is confirmed that the bearing noise, the bearing may have been damaged, need to be replaced.
3, Because the front wheel led to similar conditions on both sides of the bearing failure, so even if only one of the bearings is broken, it is also recommended to replace the pair.
4, Hub bearing more sensitive, in any case need to use the right method and the right tools. During storage and installation, the bearing components can not be damaged. Some bearings require greater pressure into the press, so the need for special tools. Must refer to the car manufacturing instructions.
5, The installation of bearings should be clean and tidy environment, small particles into the bearings will shorten the bearing life. It is very important to keep the environment clean when replacing the bearings. Never allow the hammer to strike the bearing, taking care not to drop the bearing on the ground (or a similar improper handling). Before installation, the condition of the shaft and housing should also be checked, even slight wear and tear can lead to poor fit, causing early failure of the bearing.
6, On the hub bearing unit, do not attempt to disassemble the hub bearing or adjust the hub unit of the seal, otherwise it will seal damage caused by the entry of water or dust. Even the ring and the inner raceway are damaged, resulting in the permanent failure of the bearing.
7, Equipped with ABS bearing ring has a magnetic thrust ring, the thrust ring can not be collision, impact or collision with other magnetic field. Remove from the box prior to installation to keep them away from magnetic fields such as motors or power tools used. When installing these bearings, change the bearing operation by observing the ABS alarm needle on the dashboard with the road test.
8, Equipped with ABS magnetic thrust ring wheel hub bearings, in order to determine where the thrust ring installed, you can use a small thing * bearing near the edge of the bearing magnetic force will attract it. When installed with a magnetic thrust ring on the inside, facing the ABS sensitive components. CAUTION: Improper installation may invalidate the function of the brake system.
9, Many of the bearings are sealed, this type of bearing is not required during the entire life of grease. Other non-sealed bearings such as double row tapered roller bearings must be greased when installed. Due to the size of the bearing cavity is different, it is difficult to determine how much fat to add, the most important thing is to ensure that there is grease in the bearing, if too much grease, when the bearing rotation, excess grease will seep. General experience: At the time of installation, the total amount of grease should account for 50% of the bearing clearance. 10, the installation of the lock nut due to the type of bearing and bearing different, the torque varies greatly in size.