BS standard (European standard) roller chains require special BS sprockets (RS sprockets/JIS standards can’t be used because of a different tooth width and external diameter).
Sizes, hardened teeth specifications, and bore finishings not proven in the dimensional chart are also available on an MTO basis. Get in touch with a sprockets Tsubaki representative to learn more.
Fit Bore Series is also available with finished bores.
Sizes not proven in the dimensional chart are also on an MTO basis (For instance: 20B, 56B). Contact a Tsubaki representative to learn more