First up, GTC, my bench is 900 mm high, a comfortable height for standing or sitting on a high stool.
My problem is that I'm having difficulty buying an 8 inch rag buff to fit on a tapered shaft on a grinder. I wasted money on one, but found that the centre hole was well off centre and the vibration nearly destroyed the bench. The local supplier didn't want to know about a refund or exchange for one that worked.
I then tried the machinery store advertising in Silicon Chip, but alerted them to my earlier problem. The one they supplied was slightly worse, but no problems with a refund there. They supplied the grinder and the original mop.
Can anyone suggest a supplier that I could try, perhaps even testing for balance before delivery.

Thanks. I've just about settled on 900mm as the ideal bench height.

As for bench grinder buffing wheel, I would have said Hare & Forbes (especially as that's where you bought the grinder), or Blackwoods, or even Bunnings.

I'm surprised that H&F can't supply a decent one.

Have you checked eBay?

I have a Bosch grinder that I put an 8 inch buff wheel on.
All from bunnings.

Have you considered a speed controller?

The only issue I have had with mine was a stray spark from the welder....

The motors in bench grinders are not suitable to run from a speed controller. They are split phase induction motors with many fitted with centrifugal switches to enable the start winding an the switch only disengages once full speed has been reached.

I had looked at the Bunnings web catalogue and couldn't find one, but they have a 6 inch mop in stock, so I bought this.
Its balance is not perfect, but OK and perhaps the lower circumference speed will be gentler on bakelite and me.
Thanks for the comments
Harold

If you are using a buffer to polish Bakelite I would urge lots of caution. This is the one device that will burn Bakelite beyond repair. If you haven't used this method before I reckon some practice on a smashed cabinet would be beneficial.

I have done many cabinets and other bakelite products with the buff and your caution to a new user is well founded.
I certainly started on some wrecked cabinets to get a feel for how to do it properly.