Low-noise rolling bearing

Abstract

The utility model discloses a low-noise rolling bearing and belongs to the technical field of bearings. The low-noise rolling bearing comprises a bearing body and an oil injection mechanism, the bearing body comprises an inner ring, an outer ring is arranged outside the inner ring, a retainer is arranged between the outer ring and the inner ring, a plurality of rolling bodies are arranged in the retainer, the inner wall of the outer ring is connected with a sponge ring, and the face, away from the inner wall of the outer ring, of the sponge ring is attached to the surfaces of the rolling bodies. A plurality of first through holes are formed in the inner wall of the outer ring at equal intervals, the interior of the outer ring is hollow, the oil injection mechanism comprises an annular pipe, the annular pipe is installed in the outer ring, the inner wall of the annular pipe communicates with a plurality of oil discharge pipes, and the ends, away from the annular pipe, of the oil discharge pipes penetrate through the first through holes correspondingly; and a plurality of flow dividing holes are formed in the ends, away from the annular pipe, of the oil discharging pipes, and the center of the outer wall of the annular pipe communicates with an oil inlet pipe.

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