Abstract: The expandable annular locking device is particularly applicable for use on mill roll necks, shaft and the like. The annular locking device is adapted to be disposed in an annular groove of a mill roll meck or shaft for retaining one or more sleeve-like members, anti-friction bearings, seals, spacers or the like together as a unit against a fixed abutment of the shaft for maintaining the member or plurality of members in proper working or spaced relationship on the shaft. The annular locking device comprises a pair of arcuate members, each having a pair of flat surfaces. Each arcuate member portends an arc less than 180.degree. and their one ends are pivotally interconnected by an arcuate link whose opposite ends are nested within opposed slots of said members and pivoted thereto.

Abstract: The expandable annular locking device is particularly applicable for use on mill roll necks, shafts and the like. The annular locking device is adapted to be disposed in an annular groove of a mill roll neck or shaft for retaining one or more sleeve-like members, anti-friction bearings, seals, spacers or the like together as a unit against a fixed abutment of the shaft for maintaining the member or plurality of members in proper working or spaced relationship on the shaft. The annular locking device comprises a pair of arcuate members, each having a pair of flat surfaces. When the arcuate members are disposed about a shaft within an annular recess and a preselected spacer sleeve is snugly interposed between the annular locking device and the sleeve-like elements, bearings or the like, and the locking devices are tightly secured to the shaft, the sleeve-like elements are retained against the abutment so as to locate and maintain the various elements on the shaft in the required working relationship.

Abstract: The expandable annular cam-type locking device is particularly applicable for use on mill roll necks, shafts and the like. The annular locking device is adapted to be disposed in an annular groove of a mill roll neck or shaft for retaining one or more sleeve-like members, anti-friction bearings, seals, spacers or the like together as a unit against a fixed abutment of the shaft for maintaining the member or plurality of members in proper working or spaced relationship on the shaft. The annular locking device comprises a pair of annular members or segments each having a pair of flat surfaces. One or more circular recesses is located in one surface of each annular member and each recess is provided with an expandible circular cam insert having flat faces. Threaded fastening elements are carried by the annular members and are threadedly connected to the inserts for expanding or moving same relative to the recesses.