BS sprockets standard (European standard) roller chains require unique 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 shown in the dimensional chart are also on an MTO basis. Get in touch with a Tsubaki representative to learn more.
Fit Bore Series can be available with finished bores.
Sizes not demonstrated in the dimensional chart are also available on an MTO basis (For example: 20B, 56B). Contact a Tsubaki representative for more information
