Roller Chain

Roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, drums, crushers, printing presses, cars, motorcycles, and bicycles. It consists of a series of short cylindrical rollers held together by side links. It is driven by a toothed wheel called a sprocket. It is a simple, reliable, and efficient means of power transmission.

British Standard roller chains conform to the specifications of IS 2403-1975, ISO R606 ”B”, DIN 8187 and BS 228, and are supplied in single and multiple strands. The typical British Standard Chain is 08B1, 10B-1, 12B-1 through to 48B-1, only certain of these chains are interchangeable with American standard (ANSI). From half inch to 3/4 inch are interchangeable. The SA market is split 50/50 between the 2 standards.

Roller chain is made in several sizes, the most common American National Standards Institute (ANSI) standards being 40, 50, 60, and 80. The first digit(s) indicate the pitch of the chain in eighths of an inch, with the last digit being 0 for standard chain, 1 for lightweight chain, and 5 for bushed chain with no rollers. Most roller chain is made from plain carbon or alloy steel, but stainless steel is used in food processing machinery or other places where lubrication is a problem, and nylon or brass are occasionally seen for the same reason.

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