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Wheel bearing applications and equipment considerations
Source: Bearing network time: 2013-06-13
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1. To ensure safety and reliability for the maximum limit; advocate that you always look at the early warning signal that the hub bearing pays attention to whether the bearing can wear regardless of the length of the car: including any conflicting noise during the transition or when the suspension combination wheel is turning Unusual slowdown.
For rear-wheel-drive vehicles, the vehicle travels to 38,000 km to deal with the smoothness of the front hub bearings. When exchanging the brake system; look at the bearings and exchange the oil seals.
2. If you hear the noise announced in the bearing part of the hub; firstly; it is important to find the position of the noise. There are many moving parts that can produce noise; it can also be that some of the transitions and the non-transformed parts have a touch. If it is confirmed to be a bearing Noise in the middle; the bearing can be damaged; demand exchange.
3, because the front wheel caused the failure of the two sides of the bearing working conditions are similar; so even if only one bearing is broken; also advocates pair exchange.
4, the wheel bearing is more sensitive, in any case, it is necessary to choose the correct method and suitable things. In the process of storage and transportation, the bearing parts can not be damaged. Some bearings require a large pressure to press in; therefore, the demand is dedicated Things. Must refer to the car production manual.
5, equipment bearings should be in a clean and tidy environment; fine particles into the bearing will also shorten the life of the bearing. It is very important to keep the environment clean when exchanging bearings. Do not use the hammer to strike the bearing; Dropped on the ground (perhaps a similar disposition). The shaft and housing should also be viewed before the equipment; even small wear can cause poor cooperation; then lead to early failure of the bearing.
6. For the hub bearing unit; do not attempt to disassemble the hub bearing or adjust the seal ring of the hub unit; otherwise the seal ring will damage the water or dust, and even the seal ring and the inner ring raceway will be damaged. The permanent failure of the bearing.
7. There is a magnetic thrust ring in the sealing ring bearing the bearing of ABS equipment. This kind of thrust ring can not be bumped, impacted or collided with other magnetic fields. Take it out of the box in front of the equipment; keep them away from magnetism.褂 ç¼è™»ç¼ãžå© oyster. When these bearings are equipped; after the road condition test, investigate the ABS alarm needle on the outer dial; to change the operation of the bearing.
8. Wheel bearing with ABS magnetic thrust ring; in order to determine which side the thrust ring is mounted on; it can be close to the margin of the bearing with a small thing; the magnetic force generated by the bearing will attract it. The device will have a magnetic thrust ring. One side points to the inside; is facing the sensitive components of ABS. Note: Incorrect equipment can cause the function of the brake system to fail.
9, many bearings are sealed; this type of bearing is not required to add smooth grease throughout the life period. Other unsealed bearings, such as double row tapered roller bearings, in the equipment, it is necessary to add grease smooth. Because the inside of the bearing The cavity is not the same size; so it is difficult to determine how much grease to add, the most important thing is to ensure that there is grease in the bearing. If the grease is too much, when the bearing changes, the remaining grease will seep out. Usually experienced: in the equipment; The total amount must account for 50% of the gap in the bearing.
10. When the equipment locks the nut, the bearing type and the bearing seat are different; the torque is very different.
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