The opening portion formed at the edge portions at {HEAD ~ the side} of {TAIL ~ outer race} 11 is larger in size than the diameter of ball 12 
of
The opening portion formed at the edge portions at { HEAD ~ the side } of { TAIL ~ outer race } 11 is larger in size than the diameter of ball 12
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH