Abstract: Each individual roller member is seated in its own cage element which freely abuts only equivalent or similar type neighboring cage elements. Each roller member can only protrude from the cage element with its rolling surface which prevents damage to the recirculating raceway while ensuring a proper rolling motion of the roller members upon the bearing raceway. The end faces of the cage elements contribute to this effect, too, and can also ensure a proper mutual support of the cage elements in all situations. In addition to a reduction of friction, both an increase of longevity and a damping effect can also be achieved.

Abstract: A circulating roller track or raceway is formed in a bearing block formed as a one-piece injection molding. The circulating roller track is interrupted by a bearing track or bearing raceway insert. The bearing track is raised above the plane of the circulating track and transitional ramp surfaces are provided. This bearing raceway insert has a mounting surface at the exterior of the bearing block at a calibrated distance or spacing from the bearing portion of the roller raceway. Thus only two precision components, a roller member and a bearing raceway insert, are required to obtain an accurate spacing between two mutually guided or bearing components.