Synchronous Pulley; 3" Belt Width; 1/2 Inch Belt Pitch; H Belt Style; 31 Teeth; 3.366" Face Width; Rough Bore; 4.88" Outside Diameter; 4.934" Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore

Synchronous Pulley; 30MM Belt Width; 8 MM Belt Pitch; 8M-30 Belt Style; 31 Teeth; 38MM Face Width; Bushed; 77.57MM Outside Diameter; 78.94MM Pitch Diameter; Yes Keyway; 14 To 42MM Bushing Bore Range; 1615 Bushing; No Minimum Plain Bore

Synchronous Pulley; 50MM Belt Width; 8 MM Belt Pitch; 8M-50 Belt Style; 31 Teeth; 60MM Face Width; Rough Bore; 77.65MM Outside Diameter; 78.94MM 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; 31 Teeth; 1.811" Face Width; Rough Bore; 4.88" Outside Diameter; 4.934" Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore

Roller Chain Sprocket; 16B-1 Chain; 31 Teeth; 1 Row of Teeth; Hardened Teeth; 265.024MM Outside Diameter; 251.08MM Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 25.4MM Chain Pitch; ISO Roller Chain; No Keyway; Steel Material