减速器齿轮轴两侧透盖、闷盖 (下称端盖 )沿外圆渗漏齿轮油是一个老大难的问题。渗漏多发生在减速器齿轮轴两端的端盖与上、下壳体的止口密封处。此密封处结合面较窄。厂家在生产减速器时为了便于装配端盖的径向、轴向尺寸均加工成小于减速器壳体止口的尺寸 ,端盖的径向、轴向 Both sides of the reducer gear shaft through the cover, boring cover (hereinafter referred to as cover) along the outer circle gear oil leakage is a chronic problem. Leakage occurs at both ends of the reducer gear shaft cover and the upper and lower shell mouth seal. This seal with a narrow surface. Manufacturers in the production of gear reducer in order to facilitate the assembly of the radial and axial dimensions are processed into less than the size of the reducer housing, the end cap radial, axial