How much do you know about automotive bearings?

　　I. Hazards of automotive bearings include:

　　1. The brake hub and brake pads are experiencing abnormal friction, significantly increasing driving resistance, causing the wheels to roll unevenly and leading to a drop in power output.

　　2. Affects comfort, causes the vehicle to drift, and increases tire noise;

　　3. Suspension damage, wheel mechanism damage, wheel hub detachment, and steering system failure.

　　II. The method for detecting damage to automotive bearings is:

　　1. There is a buzzing sound and loud noise when the car is driving;

　　2. Place your left hand on the shock-absorbing spring, and use your right hand to rotate the tire. If your left hand experiences excessive vibration, it could damage the front-wheel bearing.

　　3. It generates high heat and will feel hot to the touch;

　　4. Steering wheel vibration while driving.

　　III. Causes of Automotive Bearing Damage:

　　1. Improper assembly adjustment, resulting in excessive axial clearance;

　　2. Poor lubrication leads to dry friction between the rollers and raceways, causing the automotive bearing to seize up.

　　3. There is a quality issue with the bearing itself;

　　4. Installation is not clean, or there are foreign objects in the lubricating oil;

　　5. The bearing housing has a poor design.