Truck wheel bearings are vital for smooth wheel operation. Damaged bearings affect performance and can endanger drivers. How to identify failing bearings? This article highlights 5 common signs and solutions.
Illustration of a truck wheel bearing
Types of Truck Wheel Bearing Failure
Bearing failure is usually categorized as premature or natural.
Premature Failure: Often due to improper use, including:
- Poor quality lubricants.
- Incorrect installation.
- Using bearings unsuited for the vehicle’s load capacity.
- Inadequate axle and housing maintenance.
Natural Failure: Occurs when bearings operate for extended periods, continuous contact with metal leading to wear and tear.
5 Signs of Failing Truck Wheel Bearings
1. Vehicle Shaking During Operation: Worn or broken bearings cause significant wheel shaking, especially at high speeds or on rough roads. This can be due to frequent operation on poor terrain or accidents.
Illustration of a shaking wheel due to damaged bearings
2. Unusual Noises from Wheels: Loud noises, squealing, or humming from the wheel area may indicate bearing failure. This can be caused by incorrect assembly, insufficient lubrication, wear, cracks, or foreign object intrusion. Correct by reinstalling bearings correctly, using suitable lubricant, cleaning, and replacing bearings if necessary.
3. Uneven Tire Wear: While many factors can cause this, a failing bearing is a possibility. When bearings fail, pressure on the wheel is distributed unevenly, causing uneven tire wear. Inspect bearings, shock absorbers, and tie rod ends if uneven tire wear is detected.
4. Abnormal Engine Overheating: Unsuitable bearings or improper lubrication can increase friction, causing the engine to overheat quickly. Select bearings appropriate for the vehicle’s load capacity and use the correct type of lubricant. Ensure accurate installation and concentricity of the axle with the housing.
Illustration of a truck engine
5. Lubricant Leakage or Discoloration: Using too much lubricant or the entry of impurities can cause lubricant leakage or discoloration. Reduce lubricant amount, use a thicker grease, clean the housing, and replace bearings or lubricant if necessary.
Conclusion
Early detection of truck wheel bearing failure is crucial for vehicle safety and efficient operation. If you notice any of the signs above, take your vehicle to a reputable garage for inspection and repair promptly. Do not ignore minor signs, as they can lead to more serious damage.
