MARTIN SPROCKET & GR
50BTB21H ROLLER CHAIN SPROCKET ; 5/8" P 21T HT BORE FOR 1610 BUSHING
Roller Chain Sprocket; 50 Chain; 21 Teeth; 1 Row of Teeth; Hardened Teeth; 4.522" Outside Diameter; 4.194" Pitch Diameter; B-Hub One Side; Bushed Mount; 1610 Bushing; 5/8" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material
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