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2019
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03
Use and Installation of Hub Bearings
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1. In order to ensure safety and reliability to the greatest extent, it is recommended that you check hub bearings regularly no matter how old the vehicle is.Early warning signs of wear and tear include friction noise during any rotation or abnormal deceleration of suspension combination wheels during turning. Rear-wheel-driven vehicleIt is recommended that the front wheel hub bearings should be lubricated when the vehicle runs to 3800 km. When replacing the brake system, check the bearing and replace the oil seal.
2. If you hear the noise from the hub bearing, first of all, it is important to find the location where the noise occurs. There are many operations that can produce noise.Moving parts may also be some rotating parts contacted with non-rotating parts. If the noise in the bearings is confirmed, the bearings may be damaged and need to be further improved.Change.
3. Because the working conditions of the front hub leading to bearing failure on both sides are similar, even if only one bearing is damaged, it is recommended to replace it in pairs.
4. Hub bearings are more sensitive. In any case, correct methods and appropriate tools are needed. Shaft during storage, transportation and installation The bearing parts should not be damaged. Some bearings require greater pressure, so special tools are needed. Be sure to refer to the manufacturer's manual.
5. Installation of bearings should be in a clean and tidy environment, fine particles into the bearings will also shorten the service life of bearings. When replacing bearings
It is very important to keep the environment clean. Hammers are not allowed to strike bearings. Be careful not to drop bearings on the ground (or similar improper handling). Before installation, the condition of shaft and bearing seat should also be checked. Even minor wear and tear will lead to poor matching, which will lead to early loss of bearings.
Effectiveness.
6. For hub bearing units, do not attempt to disassemble or adjust the seal ring of hub bearing units, otherwise the seal ring will be damaged and water orDust enters. Even the raceway of the sealing ring and inner ring is damaged, causing permanent failure of the bearing.
7. There is a magnetic thrust ring in the sealing ring with ABS bearing. The thrust ring can not be impacted, impacted or other magnetic fields.Collide with each other. Take them out of the box before installation and keep them away from the magnetic field, such as the motor or electric tool used. When these bearings are installed, they pass through.The ABS alarm needle on the instrument panel is used to change the operation of the bearing.
8. Hub bearings equipped with ABS magnetic thrust rings. In order to determine which side the thrust rings are mounted, a small object can be used * near the edge of the bearing.Margin, the magnetic force produced by the bearing will attract it. When installed, one side of the magnetic thrust ring is pointed inside, and the sensitive element to ABS is positioned. Be careful:Improper installation may lead to failure of brake system.
9. Many bearings are sealed, and no grease is required for such bearings throughout their life. Other unsealed bearings such as double row circlesTaper roller bearings must be greased and lubricated during installation. It is difficult to determine how much grease is added because the inner chamber of the bearing is different in size. The most important thing is to determine the amount of grease added.Make sure there is grease in the bearing. If there is too much grease, when the bearing rotates, the excess grease will seep out. General Experience: Total Oil Content at InstallationIt accounts for 50% of the bearing clearance. 10. When installing locking nuts, the magnitude of the torque varies greatly due to the different types of bearings and bearing seats.
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