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Cam rollers GN 2496 can be combined with cam roller linear guide rails GN 2492 to build individual and space-saving linear guide rail systems. The outer surfaces of the cam rollers are spherically shaped so that, in conjunction with the correspondingly shaped rails, there is a precise, linear run across four points of contact. The materials can also be used in aggressive environments that can be found for example in the chemical, pharmaceutical and medical industries. In combination with the guide rail, the play or initial tension of multiple cam rollers can be determined during assembly by using the adjustable eccentric cam roller (Type E). The required open-end wrench can be ordered separately as GN 2424.1. Cam rollers can be combined with custom rails provided that the run geometry is matching. The sealed and permanently lubricated cam rollers guarantee superior running performance and low wear.