Device for cable guide pulley

The invention relates to a device designed to form a lining of a cable guide pulley, said device comprising an outer surface provided with a groove designed to be in contact with a cable, the device having a thickness (t), the device comprising at least two volumes, namely an outer volume and a main volume, said outer volume being exposed to the outer surface and containing the groove, the outer volume has a main volume exposed to the inner surface, the elongation modulus MA10 of the elastomeric composition constituting the outer volume being lower than the elongation modulus MA10 of the elastomeric composition constituting the main volume, and the radial thickness (to) of the outer volume measured at the axial center of the groove being less than 0.5 times the thickness (t) of the device. 本发明涉及一种装置，其被设计为形成线缆导向滑轮的衬里，所述装置包括外表面，所述外表面设置有凹槽，凹槽被设计为与线缆接触，装置具有厚度(t)，装置包括至少两个体积，即外部体积和主体积，所述外部体积暴露在外表面并包含凹槽，所述主体积暴露在内表面，构成外部体积的弹性体组合物的伸长模量MA10低于构成主体积的弹性体组合物的伸长模量MA10，在凹槽的轴向中心处测量的外部体积的径向厚度(to)小于装置的厚度(t)的0.5倍。