Patent ID: 8021055

Claim:
An oil film bearing for a rolling mill roll having a tapered neck leading to a cylindrical extension, with a circular groove in said cylindrical extension axially deliminated by inboard and outboard shoulders, said bearing comprising: an internally tapered sleeve received in a seated position on said tapered neck, said sleeve being journalled for rotation in a bushing fixed within a chock; a piston surrounding the circular groove in said cylindrical extension; a cylinder surrounding and internally subdivided by said piston into first and second chambers; thrust components interposed axially between said sleeve and said cylinder; externally threaded locking arms pivotally connected to said piston, said locking arms being adjustable between unlocked positions removed from said circular groove, and locked positions received in said groove and axially confined inwardly of said outboard shoulder; and a locknut configured and dimensioned to be threaded onto said locking arms and into an engaged position retaining said locking arms in their locked positions within said groove, whereupon, with said locknut in said engaged position, pressurization of said first chamber will result in said cylinder being urged axially in an inboard direction to exert a mounting force acting via said thrust components to urge said sleeve into said seated position, with outboard axial movement of said piston being resisted by engagement of said locking arms with the outboard shoulder of said groove.