The precautions for using the first generation car wheel hub bearings are as follows:
Regular inspection: Regularly inspect the hub bearings to ensure that they are not damaged and lubricated with grease. Avoid minor wear of bearings that may affect the fit and cause unnecessary losses.
Pay attention to early warning signals of bearing wear, including any frictional noise during rotation or abnormal deceleration of suspension combination wheels during turns.
Correct installation: When installing bearings, the correct method and appropriate tools should be used, and it should be done in a clean environment to avoid additional damage caused by hitting the bearings with a hammer.
The components of the bearings should not be damaged, and protection should be taken during storage, transportation, and installation. Some bearings require significant pressure to be pressed in, so special tools are needed.
Do not attempt to disassemble the hub bearings or adjust the sealing ring of the hub unit, otherwise it may damage the sealing ring and cause water or dust to enter.
Lubrication maintenance: Sealed bearings do not require lubricating grease throughout their entire lifespan, while unsealed bearings must be lubricated with grease during installation. The total amount of grease should account for 50% of the clearance of the bearing.
Regularly add lubricating oil or grease, thoroughly replace the lubricating oil at least every six months according to the vehicle's usage, and carefully inspect the bearings.
Safe driving: During the driving process, be sure to slow down, especially in areas that require deceleration such as speed bumps, and try to avoid overloading to avoid affecting the bearing life.
Both sudden braking and acceleration can cause damage to the wheel hub bearings, so it is important to drive smoothly.
Tire pressure: Use tires correctly, regularly check tire pressure and adjust it in a timely manner. Excessive or insufficient tire pressure can have an impact on the wheel hub bearings.
Maintenance and replacement: Regularly maintain the vehicle and promptly identify issues with wheel hub bearings. If the bearings are damaged, they need to be replaced in a timely manner to ensure driving safety.
When replacing the brake system, it is necessary to check the bearings and replace the oil seals to ensure the normal operation of the brake system.
Paired replacement: Due to the similar working conditions of the front wheel hub causing bearing failure on both sides, even if only one bearing is damaged, it is recommended to replace it in pairs to ensure balance and stability on both sides.
By following the above precautions, the service life of automotive wheel hub bearings can be extended, ensuring driving safety and stability.