Drive chains consist of a number of links that contain pins, rollers, bushings, and plates. The O-rings work in conjunction with the pins, plate, and bushings to hold lubrication inside the pins and rollers.
Drive chains consist of a number of links that contain pins, rollers, bushings, and plates. The O-rings work in conjunction with the pins, plate, and bushings to hold lubrication inside the pins and rollers.