Development of Labyrinth-Combination Oil Retainers for Rolling Bearings of Goods Train

Developments of labyrinth-combination oil retainers for the rolling bearings of goods train were introduced in this paper.The structure of the oil retainers was the labyrinth-combination structure between the inner oil retainers and the outer oil retainers.The main components of the blend were NBR blend of between high AN content and low AN content,high accelerator-low sulphur curing system,carbon black N550,antioxidant MB,antioxidant RD,antioxidant DBP,antioxidant DOS and Molijie TM-80.The products could meet the technology requirements of the Railway Department,and had good sealing performance,long life,assembly easy.