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

[DeCharles]

Symptoms of a bad front wheel bearing in a car: 1. The car will emit a loud humming noise after driving; 2. The temperature rises because the damaged front wheel bearing increases friction, generating high heat; 3. When the car is jacked up and the tire is shaken, there will be noticeable play. Main causes of a bad front wheel bearing: 1. Damage or rust: Foreign objects entering or misalignment of the rolling elements can cause damage, leading to poor impact and abnormal noise. Exposure to acidic liquids or moisture over time can cause rust; 2. Clearance issues: All parts and components of a car must have appropriate clearances. If the distance between the rolling elements and the raceway is too small, it can lead to friction, heat generation, and bearing seizure, causing the rolling elements to misalign and stop functioning; 3. Poor lubrication: Normally, rolling bearings require high-quality grease for lubrication, and the gaps between the inner and outer rings, the cage, and the rolling elements should be filled with grease. Without proper lubrication, the grease between the rolling elements and the raceway will eventually dry out, leading to dry friction and abnormal noise.