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