2022 Hot Selling Mountain Road Bike Wholesale Bicycle Psrts Chain

The roller is looped on the sleeve. When working, the roller rolls along the sprocket tooth profile, which can reduce the wear of the gear teeth. The main wear of the chain occurs on the contact surface of the pin shaft and sleeve. Therefore, there should be a little gap between the inner and outer chain plates so that the lubricating oil can penetrate between the friction surfaces. The chain plate is generally made into an "8" shape, so that its cross sections have nearly equal tensile strength, and also reduce the mass of the chain and the inertia force during movement.

According to the structure, it can be divided into roller chain, toothed chain and other types, of which roller chain is the most widely used. The structure of the roller chain is shown in Figure 1, which is composed of the inner chain plate 1, the outer chain plate 2, the pin shaft 3, the sleeve 4 and the roller 5. The inner chain plate and the sleeve, the outer chain plate and the pin shaft are respectively connected by interference fit, called the inner and outer chain links; The gap between roller and sleeve, sleeve and pin is fit. When the inner and outer chain plates are relatively bent, the sleeve can rotate freely around the pin shaft.