Roller Chain Sprocket; 08B-1 Chain; 28 Teeth; 1 Row of Teeth; No Hardened Teeth; 120.345MM Outside Diameter; 113.43MM Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 12.7MM Chain Pitch; ISO Roller Chain; No Keyway; Steel Material

Synchronous Pulley; 30MM Belt Width; 8 MM Belt Pitch; 8M-30 Belt Style; 28 Teeth; 38MM Face Width; Bushed; 70.08MM Outside Diameter; 71.3MM Pitch Diameter; Yes Keyway; 11 To 32MM Bushing Bore Range; 1210 Bushing; No Minimum Plain Bore

Synchronous Pulley; 50MM Belt Width; 8 MM Belt Pitch; 8M-50 Belt Style; 28 Teeth; 60MM Face Width; Rough Bore; 70.08MM Outside Diameter; 71.3MM Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore

Synchronous Pulley; 55MM Belt Width; 14 MM Belt Pitch; 14M-55 Belt Style; 28 Teeth; 70MM Face Width; Rough Bore; 122.12MM Outside Diameter; 124.78MM Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore

Synchronous Pulley; 3" Belt Width; 1/2 Inch Belt Pitch; H Belt Style; 28 Teeth; 3.307" Face Width; Bushed; 4.402" Outside Diameter; 4.456" Pitch Diameter; Yes Keyway; 1/2 To 2" Bushing Bore Range; 2012 Bushing; No Minimum Plain Bore