Bushing and bearings are the circular, metallic components that minimize friction between the wheel and the axle. Basically, it takes in most of the weight taken by the wheels from the chassis, preventing a significant amount of wear and tear usually caused by friction.

Though most would say bushings are a type of bearing, it isn't necessarily important in this occasion. Bearing is typically described as the process of transferring energy of a load between the a wheel and an axle. In this case, a bearing allows two parts to roll against each other without grinding using the metal balls contained inside them. Meanwhile, bushings are self-lubricating tube-like bearings that slide over rods (in this case, the axle), providing the same effect with the least friction as possible.

Of course, there are different kinds of bushing and bearings, but the general rule is to use the same ones your car already has.

Maintaining these components mostly involve cleaning and lubricating every month. Meanwhile, uneven tire wear, clunking noises on the wheels, and a lack of steering control are signs that they're faulty.

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