Bridge shaft

The utility model relates to the technical field of electric bridges, in particular to an electric bridge shaft which comprises an electric bridge shaft body, and the electric bridge shaft body is provided with a hollow sealing structure or a hollow oil guide structure or a hollow oil limiting structure. Compared with the prior art, the bridge shaft is provided with the hollow sealing structure or the hollow oil guide structure or the hollow oil limiting structure, so that the weight is reduced, a large amount of lubricating oil is prevented from being stored in the bridge shaft, and the function and the service life of the bridge shaft are ensured. 本实用新型涉及电桥技术领域，具体地说是一种电桥轴，包括电桥轴本体，电桥轴本体设有中空密封结构或中空导油结构或中空限油结构。本实用新型同现有技术相比，在电桥轴设置中空密封结构或中空导油结构或中空限油结构，在实现减重的同时，避免润滑油大量存储在电桥轴内部，保证电桥轴的功能和使用寿命。