What are the symptoms of a bad rear wheel bearing in a car?

[CarterLee]

Symptoms of a bad rear wheel bearing in a car: 1. The wheel wobbles when the car is moving, and the overall vehicle vibration increases; 2. Unusual noises may occur; 3. Rolling becomes less smooth, and there is a noticeable decrease in power. To determine if the rear wheel bearing is bad, you can accelerate the car and then let it coast in neutral. If the humming noise remains unchanged, it indicates a bad rear wheel bearing. Causes of rear wheel bearing damage: 1. Damage or rust on components, caused by foreign objects entering or misalignment of the roller tracks. Prolonged exposure to acidic liquids and moisture can also lead to rust; 2. Poor lubrication. If there is insufficient grease between the rollers and the tracks, dry friction occurs, resulting in unusual metallic noises; 3. Clearance issues. There should be appropriate gaps between car components. If the distance between the rollers and the tracks is too small, it can cause friction and overheating, leading to bearing seizure.