Novel elevator step main wheel shaft

The utility model discloses a novel elevator step main wheel shaft which comprises a main shaft body, the outer surface of the main shaft body is sleeved with a main wheel body, an oil storage groove is formed in one end of the main shaft body, a first oil outlet hole is formed in the main shaft body in the axial direction, and a second oil outlet hole is formed in the main wheel body in the radial direction. And the two ends of the first oil outlet hole are respectively communicated with the oil storage tank and the second oil outlet hole. According to the utility model, oil injection and lubrication can be carried out without an external oil filling device when the main wheel shaft is lubricated through the arranged oil storage tank and the piston, and the situation that lubricating oil in the oil storage tank leaks during use can be avoided through the arranged plug, so that the lubricating oil in the oil storage tank can be well stored; and oiling lubrication can be carried out next time. 本实用新型公开了一种新型电梯梯级