Hi MacCullum, The engineer in Wagga that I use, sharpens all of the bowling clubs' greens mower cylinder reels by "spin grinding" ie. just the reel in the grinding lathe, as he believes that greater accuracy is achieved....also it allows the cutter bearings to be examined and replaced if necessary.
If the bearings are worn, you will not be able to set up the correct clearance between the bedknife and cutter, resulting in uneven wear on the components.
