The anti rotation element has {HEAD ~ a seat face} which sits on {TAIL ~ the lateral section} and a guide body which protrudes beyond the lateral section in the radial direction 
The anti rotation element has { HEAD ~ a seat face } which sits on { TAIL ~ the lateral section } and a guide body which protrudes beyond the lateral section in the radial direction
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH