By making the angular position of each key slot slightly different relative to its associated home position index and positioning indices, an adjustment can be readily achieved by positioning the appropriate key slot over the key or spline to provide {TAIL ~ the desired offset} between {HEAD ~ the shaft} and the disc 
By making the angular position of each key slot slightly different relative to its associated home position index and positioning indices , an adjustment can be readily achieved by positioning the appropriate key slot over the key or spline to provide { TAIL ~ the desired offset } between { HEAD ~ the shaft } and the disc
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH