Abstract: A roller bearing for longitudinal motion includes a sleeve part through which passes a guide rod, a plurality of preferably uniformly distributed race plates each disposed in a respective receptacle formed in either the sleeve part or the guide rod, and a plurality of roller bodies disposed between the race plates and the guide rod. To compensate in a simple way for production variations, a spring mechanism is operatively associated with at least one of the race plates.

Abstract: An injection molding tool for producing a cage for a linear bearing in which several rolling elements are positioned in the cage in the direction of its longitudinal extent in the assembled state includes two tool halves each provided with protrusions. The protrusions extend into the cavity of the tool during the injection molding process and form a portion of a receiver pocket for receiving a rolling element. To make the injection molding process simple and economical, the protrusions are fixedly connected with the tool halves, with the protrusions being are shaped in such a way that, when acting together, they form holding elements for retaining the rolling elements in the receiver pockets in the cage when the injection molding tool is closed. The holding elements are thus integrated into the basic geometry of the cage.

Abstract: A roller bearing for longitudinal motion includes a sleeve part through which passes a guide rod, a plurality of preferably uniformly distributed race plates each disposed in a respective receptacle formed in either the sleeve part or the guide rod, and a plurality of roller bodies disposed between the race plates and the guide rod. To compensate in a simple way for production variations, a spring mechanism is operatively associated with at least one of the race plates.