Synchronous Pulley; 1" Belt Width; 1/2 Inch Belt Pitch; H Belt Style; 28 Teeth; 1-5/16" Face Width; Rough Bore; 4-45/64" Flange OD; 4.402" Outside Diameter; 4.456" Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore; 2-5/8"

Synchronous Pulley; 0.354" Belt Width; 5 Millimeter Belt Pitch; PA Belt Style; 28 Teeth; 0.546" Face Width; Rough Bore; 1-7/8" Flange OD; 1.709" Outside Diameter; 1.754" Pitch Diameter; No Keyway; Minimum Plain Bore

21MM Belt Width; 8MM Belt Pitch; 8M-21 Poly Chain GT2 Belt Style; 28 Teeth; 23.368MM Face Width; Rough Bore; 81.534MM Flange OD; 69.698MM OD; 71.298MM Pitch Diam; No Keyway; No Bushing; Minimum Plain Bore; 1.75" Max Bore

Pulley, Synchronous; 21MM Belt Width; 8 Millimeter Belt Pitch; 8M-21 Belt Style; 28 Teeth; 23.368MM Face Width; Rough Bore; 77MM Flange OD; 69.698MM Outside Diameter; 71.3MM Pitch Diameter; No Keyway; Minimum Plain Bore

1-1/2" Belt Width; 1/2 Inch Belt Pitch; H Belt Style; 28 Teeth; 1-13/16" Face Width; Rough Bore; 4-11/16" Flange OD; 4.402" Outside Diameter; 4.456" Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore; 2