Wheel bearings are an important component in a vehicle and allow the wheels to run smoothly. Bearings that are found on non-driven wheels are subjected to extreme pressure and weight and, due to this stress, they have a limited lifespan. Bearings will start to whine when they need replacing, and this should be conducted by a qualified mechanic.
There are two main kinds of wheel bearings available: a roller bearing format and a tapered bearing format. All of these bearings need regular adjustment and lubrication. Worn bearings will become evident in various ways and these include by showing excessive play, and becoming noisy starting with a low-pitched drone at first, and then changing into a high pitched whine.
Every wheel on a vehicle needs to have a wheel bearing to keep it running smoothly. Whether it is a rear or a front bearing, both of these need to be checked regularly for signs of wear and tear. Bad wheel parts, especially wheel hubs or bearings, can affect the safety of the vehicle and have a negative bearing on the steering wheel, which can be extremely dangerous. If it sounds like you can hear bearing noises coming from your wheels then make sure you get these diagnosed by a qualified technician as soon as possible. Bearings usually have quite a long lifespan, much longer than brake pads, but when they do need to be changed, don’t delay.