... Sprocket welding bub Japan 1. Japan standard 2. A B C Single Double type 3. 45 steel \ ... without hardend teeth as standard.We can provide a range from ANSI25 up to ANSI160 as stock. ... 50B, 60B, 80B, 100B, 120B, 140B, 160B, 180B, 200B, 240B.C-typeWe can provide the following items as stock ... -DoubleMany installations of conveyor rolls or chains require a sprocket for use with two single strand chains ...