Heavy duty cranked-link transmission chains include pitch 78.105 . We' ... transmission and conveyor chains, like roller chains, heavy duty cranked-link transmission chains ( pitch: 63.5, 78.105, 66 ... .We also produce large size chains and various non-standard chain parts ( including roller, bush, pin, plate, attachment ), machinery ... customers' drawings. P78.105 heavy duty cranked-link transmission chain