MARTIN SPROCKET & GR
6020SK COUPLING HUB ; 3-7/8" HUB DIA HUB SHAFT
3-7/8" Hub Diameter; Chain Coupling; Hub; Shaft; Bushed; 1/2 To 2-5/8 Bore Range; 5-3/16" Outside Diameter; 1-7/8" Length Thru Bore; 7/16" Between Shaft Ends; 60 Chain; 20 Teeth; 1-1/4" Width; 6020; Keyway; Steel
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