Lubricating supporting point of bearing super-refined machine capable of eliminating supporting point mark

A lubricating supporting point of a bearing super-refined machine capable of eliminating supporting point mark comprises a supporting point head and a plurality of gaskets. The upper end face of the supporting head is a circular-arc face and matched with an arc face curvature of the outer diameter of a to-be-machined ferrule. An installing hole is formed in a position a supporting point head body is arranged. The gaskets are all made of hard alloy material. The gaskets are respectively fixedly arranged on the upper end circular arc face of the supporting point head. A lubricating oil channel is opened inside the supporting point head body. A plurality of lubricating oil holes are respectively vertically formed in the supporting point head body along the tangential direction of a gasket circular arc face. The lubricating oil holes are respectively communicated with the lubricating oil channel. Due to the fact the supporting point mark is not generated after the gaskets is machined in a super-refined mode, appe