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Autoround——Auto Parts Wholesale

Autoround——Auto Parts Wholesale

Wheel Hub Bearing Life


Expected service life

The life of a wheel hub bearing is affected by many factors, including the quality of the bearing itself, the vehicle’s operating environment (such as outdoor or off-road conditions), driving habits, road conditions, load values, and maintenance.

Under normal conditions, the life of a wheel hub bearing can usually reach 136,000 to 160,000 kilometers, but the specific value will vary depending on the above factors.


Definitions related to bearing life

  • Fatigue life:

This is the cumulative time or number of cycles until the bearing reaches fatigue fracture when subjected to alternating loads. It is mainly affected by the fatigue strength of the material, stress concentration, and the number of cycles.

  • Service life:

This is a general concept, usually referring to the total time from the beginning of use to the final failure of the bearing. It covers multiple aspects such as fatigue life, wear life, and failure life, and is affected by factors such as manufacturing quality, assembly accuracy, lubrication and maintenance.

  • Wear life:

This refers to the time when the bearing’s performance deteriorates or its size changes due to wear under normal use conditions. It is related to factors such as the material, surface roughness, and contact stress of the bearing.

  • Failure life:

This refers to the cumulative working time of the bearing before failure. It is closely related to multiple factors such as the design, manufacture, use and maintenance of the bearing. If the bearing fails, it may affect the normal operation of the entire machine.


How to extend the life of the bearing

To ensure the reliability of the bearing and extend its service life, the following are some suggestions:

  • Choose high-quality bearings:

High-quality bearings usually have better materials, design and manufacturing processes, and can provide better performance and longer life.

  • Correct installation and assembly:

The installation and assembly accuracy of the bearing has a great impact on its performance and service life. Make sure that the bearing is installed correctly and tightly, and avoid damage to it during the assembly process.

  • Regular lubrication and maintenance:

Regular lubrication and maintenance can ensure that the bearing is in good working condition and reduce the occurrence of wear and failure. Use appropriate lubricants and lubrication methods, and perform maintenance according to the manufacturer’s recommendations.

  • Pay attention to the use environment and conditions:

Avoid using bearings in harsh environments or conditions, such as high temperature, high humidity, corrosion, etc. At the same time, pay attention to the impact of driving habits and road conditions on bearings, and try to avoid excessive vibration and impact.

  • Regular inspection and replacement:

Check the status of the bearing regularly and replace it in time if abnormalities are found. Follow the manufacturer’s recommendations and the guidelines of the vehicle maintenance manual for replacement work.


In short, understanding the relevant definition and influencing factors of bearing life and taking appropriate measures to extend its service life are crucial to ensuring vehicle safety and reliability.