Rolling body cage for a telescopic rail or a linear guide

Abstract

The present invention concerns a rolling body cage for a linear guide or telescopic rail having rail elements which are displaceable relative to each other, wherein the rolling body cage has at least one bottom portion extending in a longitudinal direction of the rolling body cage, side wall portions which are arranged parallel and which extend on mutually opposite sides of the bottom portion substantially perpendicularly therefrom and in which there are provided rolling body holding recesses for receiving and holding rolling bodies between the raceways of rail elements and at at least a first end of the rolling body cage a connecting bridge which extends between the side wall portions substantially perpendicularly thereto, wherein the bottom portion, the side wall portions and the connecting bridge are produced in one piece from a first plastic. It has been found that both abutment of the inner rail against the rolling body cage and also abutment of the rolling body cage against the end abutment of the outer rail can generate noise which is perceived to be annoying. Therefore an object of the present invention is to further reduce those abutment noises. To attain that object it is proposed according to the invention that a rolling body cage of the kind set forth in the opening part of this specification is provided, in which the connecting bridge at least on two mutually opposite end faces is surrounded by a damping element comprising a second plastic, wherein the second plastic is softer than the first plastic.