The service life of an automotive wheel hub unit is affected by various factors. It typically ranges from 80,000 to 150,000 kilometers, and may vary significantly depending on driving conditions, maintenance status, and design quality.
Factors influencing the service life of an automotive wheel hub unit:
- Driving environment
Rough road conditions: Frequent bumps, gravel roads, or waterlog can accelerate the aging of seals, cause ingress of dust, sand, or moisture into the bearing, and increase the risk of wear or corrosion.
Climate conditions: High humidity or a high level of salt spray may easily cause metal corrosion and shorten the service life of the wheel hub. - Driving habits
Rapid acceleration/braking: It can cause concentrated stress on the wheel hub and bearing, accelerating wear or resulting in local damage.
Excessive cornering speed: It can lead to higher lateral force and accelerate bearing wear. - Vehicle load
Overloaded driving: Long-term overloading can significantly reduce the service life of wheel hub unit. - Maintenance problems
Lack of lubrication: The grease may run dry if the sealing effect is not checked regularly.
Improper installation: During maintenance or replacement by non-professional personnel, if the pre-tightening force does not meet the specifications or if the components are installed improperly, the wheel hub may experience deformation and eccentricity, and in serious cases safety hazards may occur.
Symptoms of a failed wheel hub:
- Abnormal sound
During turning or driving, metal collision, buzzing or creaking sounds are heard. - Vibration and shaking
The steering wheel or the vehicle body vibrates abnormally during driving. - Malfunction of the ABS sensor
The ABS fault indicator on the dashboard lights up, which may be triggered by abnormal wheel speed signals. - Abnormal heating
After driving, the temperature of the wheel hub is significantly higher than that of other wheels.
