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 thin wall bearings 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. 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 slewing ring bearings 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 installation, so that they stay away from magnetic fields, such as the use of electric motors or electric tools. When installing Angular contact ball bearings these bearings, the road test by observing the dashboard ABS alarm pin to change the bearing operation.
8, equipped with ABS wheel hub bearing magnetic thrust ring, thrust ring mounted in order to determine which side, you can use a small light near the edge of something * bearings, magnetic bearings will be attracted by it generated. When installing a magnetic thrust will take the side of the ring pointing inside, is on the ABS sensor. Note: Incorrect installation may lead to functional brake system failure.
9, many of the bearings are sealed, this type of bearing is not needed throughout the life of the grease increases. Other non-sealed bearings such as double row tapered roller bearings in the installation must be added grease. Because different lumen size of the bearing, it is difficult to determine how much of the added fat, the most important thing is to ensure that the grease bearing if too much fat, when the bearing is rotating, the thin section bearing excess oil will bleed. General Experience: During installation, the total amount of oil to account for 50% of the bearing clearance.
10, install the lock nut due to the different types of bearings and bearing housings, the size difference between the torque is great. Note reference to the relevant instructions.
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