Roller chain is a kind of chain used to transmit mechanical power. It is widely used in household, industrial and agricultural machinery, including conveyors, plotters, printing machines, automobiles, motorcycles, and bicycles. It is linked by a series of short cylindrical rollers and is driven by a gear called a sprocket. This is a simple, reliable and efficient power transmission device.
Among similar products, the chain product series are divided according to the basic structure of the chain, that is, according to the shape of the element, the parts and positions that mesh with the chain, and the size ratio between the parts. There are many types of chains, but their basic structure is only the following types, and the others are variations of these types. We can see from the above several chain structures that most chains are composed of chain plates, chain pins, shaft sleeves and other components. Other types of chains just make different changes to the chain plates according to different needs. Some are equipped with scrapers on the chain plates, some are equipped with guide bearings on the chain plates, and some are equipped with rollers on the chain plates, etc. These are modifications made for different applications.
The sprocket should not swing and skew when installed on the shaft. In the same transmission assembly, the end faces of the two sprockets should be in the same plane. When the center distance of the sprocket is less than 0.5 meters, the deviation can be 1 mm; when the center distance of the sprocket is more than 0.5 meters, the deviation can be 2 mm. However, there must be no friction on the side surfaces of the sprocket teeth. If the two wheels offset too much, it will easily cause chain disconnection and accelerated wear. When replacing the sprocket, you must pay attention to check and adjust the offset.