Patent ID: 7430887

Claim:
A solid roller for detecting flatness deviations in a material, said material being in strip form, said roller comprising: a central axis; and a solid, monolithic body extending from a first axial end of the roller to an opposite axial end of the roller, the monolithic body having; a first end face at the first axial end; a second end face at the opposite axial end; a seamless outer radial surface extending from the first end face to the second end face; a plurality of parallel bores extending fully encompassed in said body from one of said first or second end faces, and axially with respect to the central axis of said solid roller; and a plurality of sensors received within said plurality of parallel bores, at least one of said plurality of sensors being axially accessible through one of said plurality of parallel bores from one of said first or second end faces; and the plurality of parallel bores sized to provide the only access to the one or more sensors that is capable of insertion and removal of the one or more sensors from the body.