One the side gear is retained onto the rotatable machine as previously described, {HEAD ~ the side gear teeth} are formed by {TAIL ~ a roll forming process} 
are formed by
One the side gear is retained onto the rotatable machine as previously described , { HEAD ~ the side gear teeth } are formed by { TAIL ~ a roll forming process }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL