When talking about the importance of wheel bearings one needs to say that it’s one of those crucial parts that frequently go unnoticed. These minor factions are of great importance since they help in achieving an efficient, safe, and comfortable driving process. In this post, we will try to explore what wheel bearings are and what their purpose is, what are the signs that tell us that the wheel bearings are worn out and what can be done to maintain or replace them for optimal car performance.
What Do They Do?
Wheel bearings are exceedingly small metal balls or rollers held in position by a circular ring known as a race. They are mounted inside the wheel’s hub ensuring that the wheel’s operability remains smooth and bears a minimal amount of friction. Besides helping the wheels roll easily on the axle, they hold the weight of the vehicle and absorb shock as you go over a rough terrain or corner. They also reduce friction between the moving parts, enabling the wheel to spin freely. In other words, they are essential with regard to stability and performance during driving operations.
Signs of Worn or Damaged Wheel Bearings
Like any car component, wheel bearings can wear out over time due to constant use and exposure to harsh road conditions. Ignoring the signs of wear can lead to severe consequences, including compromised safety.
Here are the key indicators:
- Unusual Noises: A grinding, humming, or rumbling noise coming from the wheel area, especially when turning, is a classic sign of worn bearings.
- Vibrations: You might feel vibrations in the steering wheel or vehicle body, which can worsen with speed.
- Uneven Tire Wear: Faulty wheel bearings can cause uneven wear patterns on your tires.
- Loose Wheels: A loose or wobbly wheel is often a sign of bearing failure and should be addressed immediately.
- ABS Issues: Since wheel bearings house sensors for the anti-lock braking system (ABS), a faulty bearing can trigger ABS warning lights on your dashboard.
Wheel Bearing Maintenance Tips
Maintaining your wheel bearings ensures their longevity and optimal performance. Here are some practical tips:
- Regular Inspections: During routine maintenance or tire rotations, ask your mechanic to inspect the wheel bearing for wear or damage.
- Keep Them Lubricated: Many wheel bearings are sealed and come pre-lubricated. However, if your car has serviceable bearings, ensure they are properly greased according to the manufacturer’s recommendations.
- Avoid Harsh Driving: Driving over potholes, hitting curbs, or frequent off-road driving can strain your wheel bearing. Drive cautiously to minimize unnecessary wear.
- Pay Attention to Seals: The seals around your wheel bearings keep dirt, water, and debris out. If these seals are damaged, contaminants can enter and cause premature wear.
When and How to Replace Wheel Bearings
Wheel bearings do not have a recommended service schedule but usually, they last between 85,000 to 100,000 miles. Replacement is required when you see some signs of failure or when you are carrying out your car inspection by a mechanic.
Steps to Replace Wheel Bearings
Replacing wheel bearings can be complex and requires specific tools. It’s recommended to have a professional handle this job, but here’s an overview of the process:
- Prepare Your Tools and Workspace: You will require a jack, wrench, and socket set, and could require a bearing puller or press.
- Lift the Vehicle: Park the car and apply the handbrakes, then put it in jack and stands to ensure one attains a good position for the wheel assembly.
- Remove the Wheel and Brake Assembly: Remove the wheel, calliper, and rotor to get a view of the hub assembly.
- Access the Bearings: In some car models, you will need to remove the axle nut and hub in order to get to the bearings.
- Replace the Bearings: Carefully remove the old bearings and press in the new ones. Reassemble all parts in reverse order.
Professional Assistance
While DIY replacement is possible for experienced car enthusiasts, it’s safer and more efficient to rely on a professional mechanic. They have the tools and expertise to ensure the job is done correctly.
Wheel bearing is an important component in a car’s performance and should not be overlooked. Knowing how it works and identifying the symptoms of wear and tear will help you increase their longevity and prevent expensive replacements. Routine checks and timely changes not only make the drive more comfortable but also protect the occupants of the car during use.
