Grinder improvements (wire wheel bushing/hub)

[craig9]

I'd been having trouble with some horrendous runout and vibration on my grinder - which has a wire wheel fitted to it.

In this video, I make up a hub/bushing from some 6061 aluminium - the design aims for maximal shaft contact, to hold the wire wheel as perpendicular as possible. Then I balance out the wire wheel using some small sheet metal screws. Not a perfect result, but miles better.

During the balancing operation the bearings of the grinder started failing I do not get that fixed in this video, but it might be the subject of a future one.

Cheers,
Craig