Roller Chain Sprocket; 083-1 | 084-1 Chain; 21 Teeth; 1 Row of Teeth; No Hardened Teeth; 91MM Outside Diameter; 85.21MM Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 12.7MM Chain Pitch; ISO Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 08B-1 Chain; 21 Teeth; 1 Row of Teeth; Hardened Teeth; 91.897MM Outside Diameter; 85.21MM Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 12.7MM Chain Pitch; ISO Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 10B-2 Chain; 21 Teeth; 2 Row of Teeth; Hardened Teeth; 114.859MM Outside Diameter; 106.51MM Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 15.875MM Chain Pitch; ISO Roller Chain; No Keyway; Steel Material

15MM Belt Width; 5 Millimeter Belt Pitch; 5M-15 Belt Style; 21 Teeth; 16.662MM Face Width; Rough Bore; 38MM Flange OD; 32.28MM OD; 33.42MM Pitch Diam; No Keyway; No Bushing; No Minimum Plain Bore

Roller Chain Sprocket; 12B-1 Chain; 21 Teeth; 1 Row of Teeth; No Hardened Teeth; 137.82MM Outside Diameter; 127.82MM Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 19.05MM Chain Pitch; ISO Roller Chain; No Keyway; Steel Material