Q: Are skateboard bearings important?

 make the skateboard wheels move in rotation.

The ball bearing is a component that supports the shaft and is used to guide the rotation of the shaft and bear the load transmitted by the shaft to the frame. Bearings are widely used and demanding matching parts and basic parts in the machinery industry. They are supporting elements for rotating shafts or movable parts of various machines. They are also supporting elements that rely on the rolling of the rolling element to rotate the main machine. It is called a mechanical joint.