Synchronous Pulley; 20MM Belt Width; 8 MM Belt Pitch; 8M-20 Belt Style; 21 Teeth; 22.225MM Face Width; Rough Bore; 52.095MM Outside Diameter; 53.467MM Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore

Synchronous Pulley; 1" Belt Width; 1/2 Inch Belt Pitch; H Belt Style; 21 Teeth; 1-5/16" Face Width; Rough Bore; 3.288" Outside Diameter; 3.342" Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore

Synchronous Pulley; 1/2" Belt Width; 3/8 Inch Belt Pitch; L Belt Style; 21 Teeth; 3/4" Face Width; Rough Bore; 2.477" Outside Diameter; 2.507" Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore

Synchronous Pulley; 1" Belt Width; 3/8 Inch Belt Pitch; L Belt Style; 21 Teeth; 1-1/4" Face Width; Rough Bore; 2.477" Outside Diameter; 2.507" Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore

Synchronous Pulley; 1-1/2" Belt Width; 1/2 Inch Belt Pitch; H Belt Style; 21 Teeth; 1-13/16" Face Width; Rough Bore; 3.288" Outside Diameter; 3.342" Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore