Knife and holder assembly for use in sheet material processing mechanisms

摘要

A cutter cartridge assembly (20) for holding a cutting tool (22) includes an outer casing having an axial bore (32) extending through it. At least two radial bearings (38,40) are positioned in the axial bore and have a predetermined gap (42) between them for receiving a resilient annular member (43). The resilient annular member engages the inner races (46) of the bearings and the cutting tool, thereby exerting a force on the inner races as well as aiding in the retention of the cutting tool while allowing the cutting tool to freely rotate.