A combination grinding {TAIL ~ machine} 8, wherein the workpiece support mechanism comprises a supporting drive unit configured to rotate a crankshaft about a journal axis to thereby revolve a plurality of crank pins around {HEAD ~ the journal axis}, and 
A combination grinding { TAIL ~ machine } 8 , wherein the workpiece support mechanism comprises a supporting drive unit configured to rotate a crankshaft about a journal axis to thereby revolve a plurality of crank pins around { HEAD ~ the journal axis } , and
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH