BS standard (European regular) roller chains require particular BS sprockets (RS sprockets/JIS standards cannot be used due to a different tooth width and external diameter).

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

Fit Bore Series is also available with finished bores.

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