{HEAD ~ Outer circumference} faces 11a and 12a of respective bearing cases 11 and 12 may be utilized as {TAIL ~ rotational supports} for face plates 13 and 14, respectively 
{ HEAD ~ Outer circumference } faces 11a and 12a of respective bearing cases 11 and 12 may be utilized as { TAIL ~ rotational supports } for face plates 13 and 14 , respectively
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH