Casting mould or injection mould for producing a snap cage for deep-groove ballbearings and snap cage produced in said mould

摘要

In a casting mould or injection mould for the production of a snap cage (28) for deep-groove ballbearings, in particular from plastic, the snap cage (28) is pushed out of the mould after the casting or injection operation by ejectors (24, 29). So that the finished cage (28) does not have a parting wedge and does not tend to form flash in the region of its circumferential surface as a result of mould parting, the moulding (1, 1a) for casting or injection moulding the cage pockets (36) is designed in one piece and has in the central annular section a plurality of sections (3) which are distributed around the circumference, are provided with lateral surfaces (2) and form the cage pockets (36), an axially continuous hollow space (6) being provided between each two sections (3), and the transitions between the sections (3) forming the cage pockets and the annular surfaces (4, 5) forming the bore surface and the circumferential surface of the cage (28) being designed as a radius (R) or as a chamfer. IMAGE