Specification of Taper Lock Bushing / Tapper Bush
Taper-lock bushing system to maintain a narrow sprocket hub so that the long dimension-thru-hole is less than before. Left-justified hub design allows mounting shaft near the bearing, keeping the center of the small dimensions of the load while preventing a problem with many high overhung.
Machine parts Taper-lock bushing split through flange and taper gradually to give clamps fit properly on the shaft which is equivalent to shrink fitting.