High-speed bearing lubrication device

The utility model discloses a high-speed bearing lubrication device which comprises a main shaft. The left end of the main shaft is inserted in an inner ring of a bearing which is further provided with an outer ring, a roller is arranged between the inner ring and the outer ring, lubricant is arranged at the lower part of the bearing in the bearing shell, The portion, located on the left of the bearing, of the main shaft is fixedly provided with a fixed sleeve, at least one outwards-extending lubrication cutter is fixed on the fixed sleeve, and when the lubrication cutter is vertically located below the main shaft, a cutter head of the lubrication cutter is located below the liquid level of the lubricant. The high-speed bearing lubrication device has the advantages that the rotation speed of the main shaft is high, and work noise is low.