How to Determine if a Wheel Bearing is Faulty?
2 Answers
Tire bearing failure can be judged by the following methods: 1. A noticeable humming noise is a common symptom. If the humming sound persists and does not change when the vehicle speed increases to a certain level, it can be concluded that the tire bearing is faulty; 2. The car body may vibrate, with the vibration becoming more intense as the speed increases. Additionally, significant heat may be generated. After driving for a while, the driver can touch the tire to feel the temperature, which will be noticeably higher than normal. The main function of the wheel bearing is to bear the load and provide precise guidance for the rotation of the wheel hub. It withstands both axial and radial loads, making it a crucial component.
I've been driving for over a decade and have encountered bearing issues several times. To determine if it's faulty, the first thing is to listen for sounds: while driving, you'll hear a continuous humming noise, especially as speed increases and it becomes more pronounced; the sound changes when turning – if it gets louder when turning left, it's likely the right wheel bearing that's faulty. Additionally, there will be abnormal vibrations in the car body or steering wheel, particularly noticeable at certain speeds. You can perform a simple check at home: park the car, use a jack to lift the suspected tire, and then shake it back and forth by hand; if there's a feeling of looseness or a clunking sound, it's almost certain the bearing is faulty. This isn't something to take lightly – a bad bearing not only causes noise but can also lead to the wheel coming off the axle, which is very dangerous. In my case, it was the excessive vibration at high speed that prompted me to check, and it got much better after repair. I recommend getting it diagnosed and fixed at a professional shop as soon as any unusual noise is heard.
