Improved sealed mine car wheel pair

The utility model discloses an improved sealed mine car wheel pair. The improved sealed mine car wheel pair comprises a wheel hub and an oil cover, wherein the oil cover is arranged in the wheel hub and is fixed through a snap spring. By the improved sealed mine car wheel pair, the problems that the original wheel pair has unscrewed and outworn oil cover screws, can not be normally used and is easily broken are solved, a wheel cover is prevented from falling off, and the anti-falling strength of the oil cover is increased at the same time. During the production of the improved sealed mine car wheel pair, the requirement for tolerance fit between the wheel cover and the wheel hub is improved, the sealing performance of the wheel cover is increased, a bearing is protected from being dirtied, the service life of the bearing is prolonged, and better secondary maintenance is provided.