Synchronous Pulley; 15.875MM Bore; 20MM Belt Width; 8MM Belt Pitch; 8M-20 Belt Style; 22 Teeth; 28.702MM Face Width; Finished Bore; 66.192MM Flange OD; 54.661MM OD; 56.032MM Pitch Diameter; Yes Keyway; No Bushing; No Minimum Plain Bore