Abstract: A locking mechanism for connecting machine parts such as bearing rings on a support. The support includes at least one radially elastic element having a seating surface for the ring which is deflectable radially inwardly to permit assembly of the ring on the support surface and at least one locking element formed integrally with the support and acuatable between a release position wherein the snapping element can be flexed to facilitate assembly and removal of a ring on the seating surface and a locked position wherein the ring is supported in a form locking manner in the seating surface.

Abstract: A pocket cage for a rolling bearing, e.g. a cylindrical roller bearing, made in a mold with single-piece, radially movable sliders, in particular out of plastic material with low deformability, which cage comprises two side rings connected by webs, with at least the circumferential outer surface or the bore being provided with projections which project into the pockets and extend along only part of the web length for retaining the rolling elements in the radial direction. In particular, a retaining projection is provided on a first side of each web and a recess, i.e. free space, is provided on a second side of each web. The angle between the oblique surface of the recess and the second side surface of the web is greater than or equal to the angle between the surface of the retaining projection which faces the rolling element and the first side surface of the web.

Abstract: Apparatus for making a molded plastic roller with embedded bearings. The roller is formed directly on a bearing or the like by injecting plastic into a mold by way of an umbrella sprue. The tool parts are arranged so that the shearing surface, formed after shearing off of the sprue residue when the mold is opened, is located on the outer surface of the inner collar portion. The molding tool comprises two tool parts for forming the outer surfaces of the rolling body, at least one tool part having a molding portion for forming an annular recess in the roller, and a cylindrical tool part inserted in the bearing, or the like and having a mushroom-shaped head. A back taper of the molding portion for forming the annular recess and the edge of the head together define an annular clearance through which plastic material is injected.

Abstract: Arrangement for the die casting of a roller bearing cage having pockets for the rolling bodies includes an outer housing covering the die casting mold and having guide openings opening at the central planes of the respective pockets and main and auxiliary slides arranged side by side in each guide opening. The main and auxiliary slides have guiding surfaces at their inner ends directed at an angle to the central plane, the guiding surfaces being laterally opposite one another and supporting one another. Each auxiliary slide has a lateral bulge on the side thereof opposite the guiding surface of the guide opening for defining a lateral limit wall of the pocket with holding projections for the rolling bodies on the inner and outer edges. The arrangement in accordance with the invention requires few components, provides a compact construction, and is economically produceable. The main slides are each operable from the exterior of the apparatus, and have recesses with inner and outer shoulder surfaces.