The balls are in contact with {TAIL ~ the opening portion} at the inner race side in the pockets at the minor axis positions of a drive cam, and the balls are in contact with substantially the central portion of the pocket inner surface at {HEAD ~ the major axis positions} of the cam 
The balls are in contact with { TAIL ~ the opening portion } at the inner race side in the pockets at the minor axis positions of a drive cam , and the balls are in contact with substantially the central portion of the pocket inner surface at { HEAD ~ the major axis positions } of the cam
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL 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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH