There are multiple factors for why a wheel bearing will wear out.

Normal Mileage

Like brake pads or tires, wheel bearings are also a vehicle part that have a limited lifespan and will eventually need to be replaced. Other typical driving conditions, like stop-and-go city driving, frequent short trips, and rough roads can also take a toll on your bearings.

Potholes and Curb Impacts

Sudden jolts or impact to the tire can damage the internal balls or rollers, even if nothing looks broken to the naked eye. Canadian winters and the many temperature swings of spring can make frost heaves and potholes worse, making a seasonal vehicle inspection and maintenance service even more important.

Contamination or Seal Failures

Wheel bearings are like a sealed jar. Once the seal breaks, the inside is unprotected. If a bearing’s seal is compromised or damaged, dirt or water can get in and accelerate wear and tear. Canadian winter driving conditions mean plenty of road salt, slush, and grime, which can speed up this process even more.

Unbalanced Tires or Overloading

Extra strain from unbalanced tires or an overloaded vehicle forces the bearing to work harder than designed, because it can create uneven force distribution and extra weight on the bearing’s load capacity. Routine tire maintenance, such as tire balancing and rotation, can help prevent these issues and slow down bearing wear.

If it’s the problem in the first place. Bearing noise and vibration can be mistaken with suspension or alignment issues, which makes it difficult for the average driver to pinpoint the source.

That’s why a professional wheel bearing service starts with a thorough diagnostic inspection. Your NAPA AUTOPRO technician will lift your vehicle, check the wheel for play or looseness, listen for noise, and take it on a road test to confirm whether steering, braking, or handling are affected.

Technicians can use methods like spinning the wheel while feeling the suspension for vibration. They can also placea stethoscope on the steering knuckle to listen for a rough, dry bearing. Correctly identifying the issue the first time means the right part gets replaced, saving you time, money, and unnecessary repairs.

Once the bearing is confirmed as the issue, the replacement itself requires precision. A wheel bearing is a rotating, load-bearing safety part, so these small details matter:

• The new part (bearing or full wheel hub) is carefully installed and secured according to the manufacturer’s specifications, since improper installation can cause the wheel hub to fail early.
• It is properly lubricated, again following the manufacturer’s specifications.
• Grease is kept away from brake surfaces, since even a trace can glaze the pads and cause squealing when you stop.
• When installing a sealed unit, a press is used so the new bearing isn’t damaged.
• The wheel-speed-sensor side of the bearing is positioned correctly, so your ABS system can work properly.

These sorts of details are essential to protecting your safety on the road and helping you avoid a repeat repair.Alongside your regular maintenance, book an appointment at your local NAPA AUTOPRO service centre as soon as you suspect you have a worn bearing.

Don’t trust just anyone with such an important safety part replacement. NAPA AUTOPRO has certified licensed technicians who use specific diagnostic equipment to tell bearing noise apart from an ABS sensor or suspension issue.

With more than 600 service locations across Canada, you can trust NAPA AUTOPRO to inspect, diagnose, and service wheel bearings and more.

Whether you’ve noticed humming from your wheel, you recently hit a large pothole, or you simply want peace of mind, find your nearest NAPA AUTOPRO service centre and book your appointment today at napaautopro.com.