Synchronous Pulley; 21MM Belt Width; 8 MM Belt Pitch; 8M-21 Belt Style; 22 Teeth; 23.368MM Face Width; Bushed; 54.432MM Outside Diameter; 56.032MM Pitch Diameter; Yes Keyway; 1008 Bushing; No Minimum Plain Bore

Synchronous Pulley; 12MM Belt Width; 8 MM Belt Pitch; 8M-12 Belt Style; 22 Teeth; 15.24MM Face Width; Bushed; 54.432MM Outside Diameter; 56.032MM Pitch Diameter; Yes Keyway; 1008 Bushing; No Minimum Plain Bore