Synchronous Pulley; 3" Belt Width; 1/2 Inch Belt Pitch; H Belt Style; 50 Teeth; 3.366" Face Width; Rough Bore; 7.904" Outside Diameter; 7.958" Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore

Synchronous Pulley; 30MM Belt Width; 8 MM Belt Pitch; 8M-30 Belt Style; 50 Teeth; 38MM Face Width; Bushed; 125.95MM Outside Diameter; 127.32MM Pitch Diameter; Yes Keyway; 14 To 50MM Bushing Bore Range; 2012 Bushing; No Minimum Plain Bore

Synchronous Pulley; 20MM Belt Width; 8 MM Belt Pitch; 8M-20 Belt Style; 50 Teeth; 28MM Face Width; Rough Bore; 125.95MM Outside Diameter; 127.32MM Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore

Roller Chain Sprocket; 10B-1 Chain; 50 Teeth; 1 Row of Teeth; No Hardened Teeth; 261.849MM Outside Diameter; 252.82MM Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 15.875MM Chain Pitch; ISO Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 80 Chain; 50 Teeth; 1 Row of Teeth; No Hardened Teeth; 16.495" Outside Diameter; 15.926" Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 1" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material