Patent ID: 8360829

Claim:
A blast abrasive spinner wheel housing comprising an outer housing having at least one cover element, two side elements and two front wall elements, which are arranged at a distance from each other and encompassed by said side wall elements, and including at least one liner insert that can be inserted in the outer housing and that is comprised of at least one liner cover element, two liner side elements and two liner front wall elements, which are arranged at a distance from each other and are encompassed by said liner side elements; the improvement wherein at least one of the liner front wall elements includes at least one positioning cam at one side edge, and wherein the liner side elements are provided with at least one cam receiving recess in one of the edge ranges adjacent to the side edge, and wherein the liner front wall elements are pressed against the side edge of the liner front wall elements by means of at least one clamping element that is located at the outer housing.