Synchronous Pulley; 20MM Belt Width; 8 MM Belt Pitch; 8M-20 Belt Style; 90 Teeth; 28.575MM Face Width; Bushed; 227.813MM Outside Diameter; 229.184MM Pitch Diameter; Yes Keyway; 2517 Bushing; No Minimum Plain Bore

Synchronous Pulley; 21MM Belt Width; 8 MM Belt Pitch; 8M-21 Belt Style; 90 Teeth; 30.48MM Face Width; Bushed; 227.584MM Outside Diameter; 229.184MM Pitch Diameter; Yes Keyway; 2517 Bushing; No Minimum Plain Bore

Synchronous Pulley; 30MM Belt Width; 8 MM Belt Pitch; 8M-30 Belt Style; 90 Teeth; 38.1MM Face Width; Bushed; 227.813MM Outside Diameter; 229.184MM Pitch Diameter; Yes Keyway; 2517 Bushing; No Minimum Plain Bore