Wheel bearing equipment, application knowledge

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Wheel bearing equipment, application knowledge

Source: China Bearing Network Time: 2014-01-25

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The most popular wheel bearings for cars are the use of single-row tapered roller or ball bearings in pairs. Following the development of the car; the car has now widely used car hub units. The scope and application of the hub bearing unit is growing; To the third generation: the first generation consists of double-row angular touch bearings. The second generation has a flange on the outer raceway for fixing the bearing; the bearing can be simply fixed on the axle and fixed with a nut. The repair of the third generation of the hub bearing unit is selected in cooperation with the bearing unit and the anti-lock brake system. The hub unit is depicted as having an inner flange and an outer flange; the inner flange is bolted to the drive shaft; The flange will equip the entire bearing together.
Worn or damaged hub bearings or hub units can cause unacceptable and costly failures in your vehicle's travel path; even damage your safety. Please pay attention to the use and equipment of wheel bearings. The following items:
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 age of the car: including any conflicting noise during the transition or the suspension combination wheel is turning When the speed is not normal.
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 be based on the car production clarification book.
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 缍虻缍ぞ叩 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; a light and small thing can be used * near the edge of the bearing; the magnetic force generated by the bearing will attract it. The device will have magnetic thrust The side of the ring points to the inside; the sensitive component of the ABS. Focus: 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 varies greatly. Pay attention to the relevant explanation.

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