What is a hub bearing assembly?

A hub bearing assembly is a crucial component in a vehicle's wheel system, integrating the wheel hub and bearing into a single unit. It allows for smooth rotation of the wheel while supporting the vehicle's weight and absorbing loads from road conditions. Typically sealed and pre-greased, these assemblies require minimal maintenance and are designed to enhance vehicle performance and safety. They often include features such as ABS sensors to monitor wheel speed for traction control and stability systems.