{HEAD ~ The pin} which acts as {TAIL ~ a spring} directly extends through the outer race of the bearing and its center portion elastically supports the outer race 
acts as
{ HEAD ~ The pin } which acts as { TAIL ~ a spring } directly extends through the outer race of the bearing and its center portion elastically supports the outer race
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH