Inner link plate, outer link plate, bushing, roller, and pin:These components together form the basic framework of the step chain.
Side scroll wheel settings:A side roller is mounted on the pin and located outside the outer link plate, which helps the chain run smoothly.
Dual position lubricated bearings application:By setting up the first self-lubricating bearing and the second self-lubricating bearing, the lubrication holes are evenly distributed between the inner and outer sides, ensuring full and uniform self-lubrication between the drum and the pin shaft structure.
Double-sealed fit:Using specialized sealing rings for double-seal cooperation improves the sealing safety.