The rolled material (special steel) is processed and heat-treated, and then fastened to the link with bolts and nuts. It is a part that requires toughness and high durability in contact with the ground.
It is one of the components of the "track" and is the main part that connects the front and rear links with the pins, bushes and shoes.
A joint part that serves to connect links. Since the pin receives the weight of the body via the bush, its strength is important.
A part that inserts a pin into the inner cylinder to smoothen the movement of the joint. Since the inner part slides against the pin and the outer part slides against the sprocket, high wear resistance is required.
