Roller Chain Sprocket; 20MM Bore; 169MM Outside Diameter; 161.87MM Pitch Diameter; 40 Teeth; 40 Chain Number; Stainless Steel; Finished Bore; Hub Type; 6MM Key Groove Width

Roller Chain Sprocket; 12MM Bore; 46MM Outside Diameter; 41.1MM Pitch Diameter; 10 Teeth; 40 Chain Number; Stainless Steel; Finished Bore; Hub Type; 4MM Key Groove Width

Roller Chain Sprocket; 20MM Bore; 40 Chain; 36 Teeth; 1 Row of Teeth; 169MM Outside Diameter; 161.87" Pitch Diameter; B-Hub One Side; Finished Bore; 1/2" Chain Pitch; ANSI Roller Chain Type; With Keyway; Steel Material