Instruction of Wheel Bearing Installation&Usage
Wheel bearing&Wheel hub units:
At past most of car wheel bearings are a separate pair of Tapered Roller or ball bearings. Along with technological development, car wheel hub units has been widely used. The use of Wheel Hub Bearing Unit is growing it has now developed a third generation : The first generation is composed of double row angular contact bearings. Roller ground for a second generation of foreign fixed to the flange bearings, bearing sets will be simple to use axle nut fixed. The change makes car maintenance easier. Wheel Hub Bearing Unit is the third generation of the bearings used anti-lock brake modules and systems. Wheel modules designed with a flange and the outer flange, which flange bolts fixed in Shaft and outer whole flange bearings installed together.
Wear or damage to the wheel bearings or wheel hub units will occur in a way appropriate to the current high cost-ineffective, even hurt your safety. Nitices for Wheel bearings in the use and installation:
1, in order to ensure maximum safety and reliability, recommend no matter how long is your car age, you should regularly check wheel bearings -- attention to the early bearing warning signals : Any combination of friction noise or flying in turning round the slowdown is not normal;
Rear-wheel drive vehicles drive to 38,000 kilometers in the proposed deal is front wheel bearings lubrication. When the replacement of brake systems, check bearing and replace valve seal;
2, as part of the noise of wheel bearings, first of all, the important thing is to find the location of noise. The noise may caused by many moving parts, also it could be the contact of some rotating parts with non-rotating parts. If confirmed bearing noise, the bearings may have been damaged and needs to be replaced;
3,Even just one front bearing can not work, we recommend replace the pair because working conditions is similar to both sides of the front wheel bearing;
4, Wheel bearings are sensitive, under any circumstances, it requires the use of the correct methods and the appropriate tools. Components of bearings can not be damaged in the process of transporting and installing. Some bearings require greater pressure indentation, so it need necessary tools. You must follow the manufacturing instruction;
5, bearings should be installed in clean environment, even small particles into the bearing will shorten bearing life. Replacement to bearing in a clean environment is very important. Not allowed to use a hammer percussion bearing, attention bearing not fall on the ground (or similar improper handling). Check the situation of axle and bearing before installation, even with minor wear will leading to early failure of the bearings;
6, As for Wheel hub units, do not try to open the wheel bearings or adjust it’s seal. otherwise it would cause damage to seal or the entry of dust or water. Even ring and the Inner roller road were damaged, and causing permanent bearing failure;
7, the bearing seal with ABS have a magnetic thrust ring, which should not be collided or collided with other magnetic field. Take out of it from packet before installation so that they stay away from magnetic fields, such as the use of a motor or electric tools. In installation tested through ABS Alarm Needle on traffic observation instrument panel to change the bearing operation;
8, In order to determine which side to install the ABS magnetic thrust ring, put a small thing near the edge of the bearing, the magnetic bearings will retain it. The ring will be installed at the inside side with magnet, point to the ABS sensor. Attention that incorrect installation may lead to functional failure of the braking system;
9, Most of the bearings are sealed, and no need to add grease during entire life of such bearing. Other non-sealed such as double-row tapered roller bearings which must add grease in installation. Since the difference of bearing cavity, it is difficult to determine how much grease to add, the most important thing is to ensure there is grease in bearing. If too much grease, extra grease will be leaking during bearing rotating. According to experiences, in the installation, the total grease account for about 50% of bearing clearance;
10, Due to difference of bearing type and bearing shaft, there is different torque size vary widely while installation of lock nut. It is needed to follow some instruction;
11, Bearing lock contribute to the lock bearing position, which is considered to be a security part. Lock Channel lock can not be reused because of the serious damage in the regular course of the demolition. In the installation, these lock ring must be updated;
12, if the wheel bearings rotate very slow after the installation, check whether the suitable torque has been used or the recommended torque of vehicle manufacturer. If the bearings can not operate freely, which will lead to slowing down the revolving wheel bearings, and high temperature of bearing, which will shorten life of bearing, it is necessary to adjust the torque to ensure the normal operation of bearings.
