Patent ID: 6361309
Filing Date: 2002-03-26
Classification: B29C,B29L,F16C,Y10S

Abstract:
An injection molding tool for producing a one-piece cage for a linear bearing in which several rolling elements are positioned in the one-piece cage in a direction along a longitudinal extent of the one-piece cage, the injection molding tool comprising first and second tool halves between which is defined a cavity of the tool which receives injection molding material during injection molding of the one-piece cage, the first tool half being provided with a plurality of first protrusions fixedly connected with the first tool half and extending into the cavity of the tool during the injection molding of the one-piece cage, the second tool half being provided with a plurality of second protrusions fixedly connected with the second tool half and extending into the cavity of the tool during the injection molding of the one-piece cage, each of the first and second protrusions forming a portion of a receiver pocket which is adapted to receive one of the rolling elements, the first and second protrusions being configured to form holding projections associated with each receiver pocket and integrated with the cage for holding the rolling elements in the cage.