The complexity of modern vehicles means that most issues require professional intervention in order to be fixed. But that doesn’t mean that you, as a driver, can’t familiarise yourself with the signs and symptoms of certain issues and failings.
One of these is a failed wheel bearing – that is, a failing in the part of the vehicle that holds the wheel tight to the vehicle. If this fails, there’s an increased risk of vibration, uneven wear, steering issues, and even a complete loss of control – all of which impact performance, durability, and of course safety.
Suffice to say, being able to spot the signs of a failed wheel bearing early is important. So what can drivers look out for, and what should they do if they think a wheel bearing might be starting to fail?
What Does the Wheel Bearing Do?
The wheel bearing sits between the wheel and the axis, connecting it to the vehicle and enabling it to rotate smoothly while driving. It is designed to reduce the friction caused by the wheel’s motion, facilitating a smooth rotation of the wheel while also supporting the weight of the vehicle.
The make-up of a wheel bearing is relatively simple – comprising a metal ring with small metal balls and a seal to keep out debris. The use of the small metal balls means that as the wheel rotates, these can move freely and allow for the smooth glide of the wheel.
This is important because not only does friction cause wheels to become worn and damaged over time, but it also has a tangible effect on the driving experience and comfort. When wheel bearings are firmly in place and working effectively, vibration is reduced, vehicle components are protected from excessive wear, and the full weight of the vehicle is adequately supported.
In short, wheel bearings are there for comfort, safety, performance, and durability – and ensure that the wheels of your car or vehicle are always in good working order.
So, what happens when a wheel bearing fails, and what does this look like?
What Happens When a Wheel Bearing Fails
There are several ways in which a wheel bearing could fail.
These include the small metal balls of the bearing becoming chipped or damaged and increasing friction during wheel rotation, the bearing becoming worn through contamination and debris, or the bearing becoming loose / not being fitted properly.
Any and all of these circumstances can lead to wheel bearing failure, which means:
- Extensive damage to the wheel’s moving parts
- Increased rate of wear and tear
- Higher risk of loss of vehicle control as the steering wheel does not become or feel as responsive, and the wheels do not respond as expected
- Compromised safety from a loss of control and even potential wheel detachment in the most severe cases
Signs That a Wheel Bearing is Failing
The best way to prevent the above from happening is with regular inspections and checks of the wheel bearing, as well as being able to recognise the signs that a wheel bearing is failing.
Some of the most obvious signs that a wheel bearing may be failing include:
- A humming or grunting noise that sounds like it gets louder as you speed up. This noise can also become more prolific or duller when navigating corners – a sign that can help you identify which side of the vehicle boasts the failing wheel bearing
- Vibrations in the steering wheel, which indicate increased friction as the wheel rotates
- Feeling like the wheel is uneven or is not attached properly
Any or all of the above symptoms are a strong indicator that something could be wrong with your wheel bearings – with the first thing to do being to get your vehicle booked in with a mechanic as soon as possible. It could be that the wheel bearings need tightening or readjusting, or that they need replacing; all of which are tasks that should be done by a trained professional.
For more advice like this, check out our other Knowledge Hub pieces or get in touch with the team to discuss specific concerns and questions.
