MARTIN SPROCKET & GR
5018TBH COUPLING HUB ; 2-31/32" HUB DIA
2-31/32" Hub Diameter; Chain Coupling; Hub; Shaft; Bushed; 1/2 To 1-11/16 Bore Range; 3.92" Outside Diameter; 1" Length Thru Bore; 3/8" Between Shaft Ends; 50 Chain; 18 Teeth; 1" Width; 5018; Keyway; Steel
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