Roller chain comes in many sizes 3/8" to 2" and as a standard chain. Above 2" chains custom-made and special Chains generally you get at Up 12". Chase roller chains comes in multi strands like Simplex chains, Duplex Chains or Triplex Chains and many more types. Diamond transportation chains are very well known in industrial applications. Diamand roller Chains used in Transmission of power between two shafts standard roller chains are used for high-speed application and power transmission.