Modern automobiles have many more complicated components than their older, more classic counterparts. Still, there are many aspects of modern cars that remain simple. For example, all cars still use wheel bearings. A wheel bearing is, in its simplest form, a set of steel balls contained inside a metal ring that fits inside the hub of each wheel. Wheel bearings support the weight of the car, give it a smoother ride, and provide stability. They also take a lot of punishment, given that they are always in use. Sometimes the punishment they suffer from normal to extreme driving means they need to be replaced. St. Paul Automotive provides excellent and affordable wheel bearing repairs.