Patent ID: 8641481

Claim:
A bonded abrasive wheel comprising: a disc shaped body, the disc shaped body comprising: a neutral axis lying along a central plane of the disc shaped body; an arbor hole extending through the body; a generally flat first face extending from the arbor hole to a wheel outer diameter; a generally flat second face extending from the arbor hole to the wheel outer diameter opposite the first face; a non-grinding zone adjacent to the arbor hole between the first face and the second face; a grinding zone extending from the non-grinding zone to a wheel outer diameter along the first face and the second face; a first reinforcement layer between the neutral axis and the first face; a second reinforcement layer between the neutral axis and the second face opposite the first reinforcement layer, wherein one or more of said reinforcements are fiberglass webs, and wherein the fiberglass web is coated with a sizing system and a second coating that excludes wax.