Is it better to repair or replace the original wheel hub?
1 Answers
Wheel hubs can be repaired, but the extent of the damage must be considered. For example, a fractured wheel hub is not recommended for repair due to safety concerns, while small gaps or dents can be repaired. With technological advancements, cars have widely adopted wheel hub units. The application and usage of wheel hub bearing units have been increasing and have now evolved to the third generation: the first generation consisted of double-row angular contact bearings. When replacing a wheel hub, the following parameters should be noted: 1. Center Bore (CB): Refers to the size of the wheel hub's center hole. Although wheel hubs with different center bore sizes from the original can be installed using adapters, this is not recommended for safety reasons. 2. Pitch Circle Diameter (PCD): For example, a wheel hub with a PCD of 5x120mm means it has 5 lug bolts forming a circle with a diameter of 120mm. This value should also match the original specifications. 3. Offset (OFFSET): Also known as the ET value. A positive offset means the mounting surface is outside the centerline, while a negative offset means it's inside. Car wheel hubs generally have a positive offset, and this value significantly affects the vehicle's driving stability and cornering traction.