{HEAD ~ A bearing support frame} is disposed within {TAIL ~ a rear end portion} of a tractor front housing having an open rear end 
is disposed within
{ HEAD ~ A bearing support frame } is disposed within { TAIL ~ a rear end portion } of a tractor front housing having an open rear end
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH