Abstract: A belt pulley (1) for a belt drive and a plastic injection molding method for producing the belt pulley are provided. The belt pulley (1) includes an anti-friction bearing (2) and a running ring (3) which surrounds the bearing outer ring (7). An end side of the running ring has a multiplicity of molding points (13) which run on the sector radii (R) of circular sectors which have a common center point on the rotational axis (15) of the belt pulley and at least two center point angles (?) of different size. Part of the circular sectors are to have sector radii, on which the molding points have cross sections of different size. Here, the center point angle of the adjacent circular sector on the side of the larger molding cross section is larger than the center point angle of the adjacent circular sector on the side of the smaller molding cross section.

Abstract: A rolling body guide element for a roller bearing, having an inner web (1) that is arranged between two adjacent rolling bodies in the installed state and forms a first and second connecting part wall (1a, 1b) facing a respective rolling body at the radial plane of the rolling body axes, a run-on structure (2) formed in the region of the respective connecting part wall to provide at least one roller run-on zone supporting the respective rolling body in the circumferential direction, and a radial guide structure (3) for radial guidance of the inner connecting part. According to the invention, the rolling body guide element includes first and second side edge pieces (4, 5) which, on sides of the rolling body guide element facing away from one another, rise up above the end faces of the adjacent rolling body and overlap these end faces.

Abstract: A belt pulley (1) for a belt drive and a plastic injection molding method for producing the belt pulley are provided. The belt pulley (1) includes an anti-friction bearing (2) and a running ring (3) which surrounds the bearing outer ring (7). An end side of the running ring has a multiplicity of molding points (13) which run on the sector radii (R) of circular sectors which have a common center point on the rotational axis (15) of the belt pulley and at least two center point angles (?) of different size. Part of the circular sectors are to have sector radii, on which the molding points have cross sections of different size. Here, the center point angle of the adjacent circular sector on the side of the larger molding cross section is larger than the center point angle of the adjacent circular sector on the side of the smaller molding cross section.

Abstract: A cage part (1, 20, 40) for a rolling bearing cage (30), having a connecting part (3) extending in a longitudinal direction (Z), at the ends of which a first supporting arm (4) and a second supporting arm (5) are arranged, each of which extends beyond the connecting part (3) on both sides in a first transverse direction (X) perpendicular to the longitudinal direction (Z). The supporting arms (4, 5) each include two half arms (7, 8, 9, 10) angled in the opposite direction to one another away from the web (3) and which are offset with respect to one another in a second transverse direction (Y) perpendicular to the first transverse direction (X) and the longitudinal direction (Z).