Roller Chain Sprocket; 100 Chain; 55 Teeth; 1 Row of Teeth; Hardened Teeth; 22.61" Outside Diameter; 21.895" Pitch Diameter; C-Hub Both Sides; Rough Bore Mount; No Bushing; 1-1/4" Chain Pitch; ANSI Roller Chain; No Keyway; Carbon Steel Material

Roller Chain Sprocket; 20B-1 Chain; 55 Teeth; 1 Row of Teeth; Hardened Teeth; 574.294MM Outside Diameter; 556.15MM Pitch Diameter; C-Hub Both Sides; Rough Bore Mount; No Bushing; 31.75MM Chain Pitch; ISO Roller Chain; No Keyway; Carbon Steel Material