Abstract: In a sawing cord the three constituting elements of steel cord, sawing bead and sleeve polymer in between the beads must work optimally together. In order to improve the injection molding quality the inventors disclose an injection mold wherein the injection channels inject polymer from opposite sides of the steel cord into the injection cavity. The injection mold comprises two half molds that form the injection cavity when closed. Different preferred embodiments are described inclusive the use of channels having a tree structure, preferably a binary channel tree, preferably a balanced binary tree and most preferred a balanced binary tree with equal length pathways from feed channel to each injection channel. The use of heated channels is disclosed and the rules for balancing between the number of heated versus non-heated channels are explained. Furthermore the method to use such mold and the product resulting from the use of the mold are claimed.

Abstract: In a sawing cord the three constituting elements of steel cord, sawing bead and sleeve polymer in between the beads must work optimally together. In order to improve the injection moulding quality the inventors disclose an injection mould wherein the injection channels inject polymer from opposite sides of the steel cord into the injection cavity. The injection mould comprises two half moulds that form the injection cavity when closed. Different preferred embodiments are described inclusive the use of channels having a tree structure, preferably a binary channel tree, preferably a balanced binary tree and most preferred a balanced binary tree with equal length pathways from feed channel to each injection channel. The use of heated channels is disclosed and the rules for balancing between the number of heated versus non-heated channels are explained. Furthermore the method to use such mould and the product resulting from the use of the mould are claimed.

Abstract: A load bearing assembly (100) for use in elevator system wherein the load bearing assembly (100) comprises at least one steel rope (102) and a jacket (110) surrounding this at least one steel rope (102). The jacket (110) comprises at least one layer of a thermoplastic elastomer comprising polymer particles (112). The polymer particles (112) have a molecular weight higher than 0.5*106 g/mol. The jacket (110) provides a coefficient of friction allowing sufficient traction between the load bearing assembly (100) and other components of the elevator system, such as the sheaves. Also disclosed is a corresponding method of making a load bearing member.