One-way needle bearing with support

The utility model provides a one-way needle bearing with a support, which belongs to the technical field of bearings, aims to solve the problem that tiny dust and impurities are easy to enter due to a certain gap at the joint of a bearing inner ring and a sealing cover as well as the joint of a bearing outer ring and the sealing cover in the conventional needle bearing, and comprises the bearing outer ring, the bearing inner ring is rotationally connected to the inner end of the bearing outer ring; the retainer is rotationally connected to the inner sides of the bearing outer ring and the bearing inner ring; the plurality of transmission roller pins are uniformly distributed and rotationally connected to the inner side of the retainer; the lubricating auxiliary structure is arranged on the outer side of the transmission roller pin; the two sealing covers are symmetrically arranged on the inner sides of the bearing outer ring and the bearing inner ring left and right; the sealing auxiliary structures are arran