本发明是一种列车转向架的中心销橡胶套。在中心销上套装有内套。在内套上套装有外套。在内套和外套中间设置有橡胶层。内套和外套通过橡胶层的橡胶硫化固接成一体。内套和外套均由金属材料制成,外套外圈进行发黑处理,内套内圈进行氮化处理。内套为一圆筒体I,圆筒体I内圈的左右两面为两平面。圆筒体I内圈的上下两面为圆弧 The invention is a center pin rubber sleeve for a train bogie. In the center pin package with inner sleeve. In the inner suit with a jacket. A rubber layer is provided in the middle of the inner sleeve and the outer sleeve. The inner sleeve and the outer sleeve are solidified into one body by rubber vulcanization of the rubber layer. The inner sleeve and the outer sleeve are made of a metal material, the outer sleeve of the outer sleeve is treated with blackening, and the inner sleeve of the inner sleeve is treated with nitriding. The inner sleeve is a cylinder body I, the left and right sides of the inner cylinder of the cylinder body I are two planes. The upper and lower surfaces of the inner ring of cylinder I are circular arcs