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