Many types of bearings are used to reduce friction between two surfaces. Editor's note: An updated version of this information can be found here. Bearings are used to help reduce friction.

The nut supports a table, arm, or other load that needs to move in a straight line. Re-circulating ball bearings within the nut follow the shaft’s threads and distribute the load from the table ...

The ball bearing can only work if the balls are kept ... and uneven spacing would cause the bearing to be weak under loads from a certain direction. So most bearings use cages to separate and ...

Some vehicles have upper and lower front ball joints, and depending on the suspension design either can be the load-bearing joint that carries the vehicle’s weight (load-bearing joints tend to ...

On this particular unit there was brinelling of the races, which showed radial loads that were large enough to cause the steel ball bearings to dent the housing race. 3. The upper housing has one ...