Patent ID: 8471554

Claim:
An encoder module with an alignment system comprising: an encoding device; a housing comprising an inner surface, an outer surface, a housing screw and a rib protruding from the inner surface; and a hub having an inner hub surface and an outer hub surface, wherein the inner hub surface comprises a sleeve and the outer hub surface comprises a flange structure, a circumferential groove and at least one hub screw, wherein the hub is arranged within the housing and rotatable about an axis of rotation, and wherein the hub is configured to be slidingly moved between a first position and a second position within the housing; wherein in the first position, the hub is configured to engage in a centering mode, wherein the housing screw is configured to urge against the hub, and the rib is configured to bias against the flange structure so that the housing and the hub are substantially secured and concentric with one another; wherein in the second position, the hub is configured to engage in a rotational mode, wherein the housing screw is being disengaged from the hub and permits the hub to slidingly offset so that the circumferential groove of the hub coincides with the rib and allows the hub to rotate within the housing.