{HEAD ~ This opening portion} is in contact with ball 12 at the minor axis position of {TAIL ~ cam} 7, i.e., at the position of the X X axis in FIG 5, thereby preventing retainer 13 from moving in the direction of outer race 11, as shown in FIGS 6A and 6B 
{ HEAD ~ This opening portion } is in contact with ball 12 at the minor axis position of { TAIL ~ cam } 7 , i.e. , at the position of the X X axis in FIG 5 , thereby preventing retainer 13 from moving in the direction of outer race 11 , as shown in FIGS 6A and 6B
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 OTH OTH