MARTIN SPROCKET & GR
D50B21H ROLLER CHAIN SPROCKET ; 5/8" P 21T HT DOUBLE 1" MIN PLAIN BORE
Roller Chain Sprocket; 50-2 Chain; 21 Teeth; 2 Row of Teeth; Hardened Teeth; 4.522" Outside Diameter; 4.194" Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 5/8" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material
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