Device for Cable Guide Pulley

A device which is designed to form a lining of a cable guide pulley, the device comprising an exterior face provided with a groove which is designed to be in contact with a cable, and an interior face which is designed to be in contact with a sole layer which would be in contact with the cable guide pulley, the device having a thickness (t), measured between the radially exterior end part of the exterior face, and the radially interior end part of the interior face at an axial centre of the device, the device comprising at least 2 volumes,

• consisting of an exterior volume which is exposed at the exterior faceat least partly and contains the groove, and a main volume which is exposed at the interior face at least partly, the exterior volume and the main volume being made of different elastomer compositions,
• a modulus of elongation MA10 according to ASTM D 412 measured for an elongation of 10 percent and at a temperature of 23° C. of an elastomer composition constituting the exterior volume being lower than the modulus of elongation MA10 of an elastomer composition constituting the main volume,
• a radial thickness of of the exterior volume measured at the axial centre of the groove being less than 0.5 times the thickness (t) of the device, the device further comprising an intermediate volume which is not exposed at the exterior face, the intermediate volume made of an intermediate volume elastomer composition which is different from the elastomer composition which constitutes the exterior volume and the elastomer composition which constitutes the main volume.