Take-up bearings are a type of mounted bearing primarily used for adjusting and maintaining conveyor belt tension. Take-up is the process of adjusting the length of the belt and chain to compensate for stretch, shrinkage, or wear, and to maintain proper tension. This is done with the assembly of the necessary structural and mechanical parts, including take-up bearings. The take-up bearing assembly consists of a housed that is mounted to a frame. The bearing is guided along the frame by a slot int he bearing housing or other means. The take-up assembly contains a screw or other mechanism for adjusting its location along the frame.  A shaft connects two take-up bearings, one mounted on each side of the assembly. When a conveyor belt or chain needs to be replaced or tightened, the take-up bearing is adjusted via the screw or other mechanism to provide the appropriate amount of tension on the system.