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 outer diameter).

Sizes, hardened teeth specifications, and bore finishings not sprockets proven in the dimensional chart are also on an MTO basis. Contact a Tsubaki representative to find out more.

Fit Bore Series can be available with finished bores.

Sizes not demonstrated in the dimensional chart are also on an MTO basis (For example: 20B, 56B). Get in touch with a Tsubaki representative for more information