A shaft bearing for placement in a hole in a bracket which has three main portions, a first cylindrical portion, which is larger in diameter than the bracket hole, at a first end of the bearing, a tapered portion at a second end of the bearing, and a second cylindrical portion between the first cylindrical portion and the tapered portion. There is a central cylindrical bore extending from the first end to the second end of the bearing. The bearing also serves as a spacer in installation of a garage door and associated components.
A press-alignable bearing assembly comprises a generally cylindrical retainer configured to be pressed and held with an interference fit in an opening formed in a sheet of material such as metal or plastic. A bearing, such as a rolling bearing or a bushing, is mounted in the retainer for rotatably or slidably receiving a shaft when the retainer is mounted in the opening. In one embodiment, the bearing is press fit directly into the retainer and is rigidly secured by an interference fit. In another embodiment, the bearing is press fit into a bearing sleeve and the bearing sleeve is mounted in the retainer for limited rocking movement relative to the longitudinal axis of the retainer. With the later embodiment, the bearing is self-aligning with a shaft rotatably inserted therethrough. A further embodiment includes a spring clip and a retaining ring on the retainer for securing the retainer and an ancillary component to the sheet of material.
A sleeve is disclosed for use in an oil film bearing of the type employed to rotatably support a roll neck in a rolling mill. The sleeve has an internally tapered section, an end section aligned axially with the internally tapered section, and a cylindrical outer surface surrounding the internally tapered section. The cylindrical outer surface is adapted to be rotatably journalled in a bushing component of the bearing and has a diameter D of at least 500 mm. The internally tapered section is adapted to be seated on an externally tapered section of the roll neck and has a taper angle greater than three degrees and a minimum thickness of between about 10 mm and 0.024D+14.5. Keyways located outside of the internally tapered section and exclusively in the end section serve to rotatably fix the sleeve to the roll neck.
A roller support includes a body member, a bushing member, and a step member. The body member includes a first guide roller receiver that is adapted to receive an end of a first guide roller. The bushing member extends from a surface of the body member and has a central bore that extends through the body member. The step member is positioned adjacent the bushing member and extends from the surface of the body member in the direction of the bushing member.
