Removal method for removable closure member for bearing units

Abstract

A removable end cap closure member or welsh plug for bearing units is disclosed including a frangible knockout plug adapted to be broken out of the closure member with an impact tool to provide an aperture allowing removal of the closure member with a tool. In the preferred embodiment, the plug remains attached to the closure member by a bendable connecting neck which prevents lodging of the plug in the bearing unit. Also disclosed is a bearing assembly including the removable end cap closure member as well as a method for removing the closure member including pressing the knockout plug with a tool to provide an aperture in the closure member and prying and bending the closure member away from the bearing unit with a tool inserted in the aperture. A fixture for supporting a trolley wheel and trolley bracket assembly during installation and removal of an end cap closure member to and from such an assembly is also disclosed.

Dependencies are inferred from the claim text.