Since the bearing capacity of such bearing portions increases with increase of {HEAD ~ the rotary speed} of {TAIL ~ the device}, the applicable range of revolutions per minute can be increased by the application of the invention 
of
Since the bearing capacity of such bearing portions increases with increase of { HEAD ~ the rotary speed } of { TAIL ~ the device } , the applicable range of revolutions per minute can be increased by the application of the invention
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH