The Rubber Wheels i have are heavy cast rubber discs filled with abrasive particles throughout, in my case silicon carbide. (they were also available with aluminium oxide)
These discs can be used on a standard bench grinder to deburr & polish various kinds of metal, and also to sharpen knives.
I have 4 different ones, each one measuring 8" in diameter, and they were manufactured by a small Dutch company.
My current bench grinder is a Creusen DS7500TS which runs between 1400-1700 r.p.m.
As an experiment i glued +/- 230 grit diamond particles on the rim of one of them with the same waterproof wood glue i use to attach SiC grit to a Paper Wheel, and then covered it with wax, also the same as on a Paper Wheel with SiC grit.
Since i liked the results i got with this Wheel (have been using it since early 2015) i later did another one, this time with +/- 170 grit diamond powder.
Fairly recently i converted my oldest Paper SiC grit Wheel into one that also uses 170 grit diamond powder.
For gluing SiC or diamond grit to either Paper Wheels or Rubber Wheels i use 3 layers of glue which provides for a much stronger bond of the grit to the Wheel surface compared to just one layer of glue: a base layer, a second layer on which the grit is applied, and then a third thin layer over the grit. (yes, i know it sounds strange)
Allow each layer of glue to dry at least overnight and don't forget to apply the layer of wax before you start using the Wheel.
These discs can be used on a standard bench grinder to deburr & polish various kinds of metal, and also to sharpen knives.
I have 4 different ones, each one measuring 8" in diameter, and they were manufactured by a small Dutch company.
My current bench grinder is a Creusen DS7500TS which runs between 1400-1700 r.p.m.
As an experiment i glued +/- 230 grit diamond particles on the rim of one of them with the same waterproof wood glue i use to attach SiC grit to a Paper Wheel, and then covered it with wax, also the same as on a Paper Wheel with SiC grit.
Since i liked the results i got with this Wheel (have been using it since early 2015) i later did another one, this time with +/- 170 grit diamond powder.
Fairly recently i converted my oldest Paper SiC grit Wheel into one that also uses 170 grit diamond powder.
For gluing SiC or diamond grit to either Paper Wheels or Rubber Wheels i use 3 layers of glue which provides for a much stronger bond of the grit to the Wheel surface compared to just one layer of glue: a base layer, a second layer on which the grit is applied, and then a third thin layer over the grit. (yes, i know it sounds strange)
Allow each layer of glue to dry at least overnight and don't forget to apply the layer of wax before you start using the Wheel.