Stable needle bearing

The utility model discloses a stable needle bearing. The stable needle bearing comprises a bearing outer ring and a bearing inner ring, the bearing inner ring is arranged in the bearing outer ring, the roller is arranged on the inner wall of the bearing outer ring, the rotating grooves are formed in the two ends of the roller, the first groove is formed in the surface of the bearing outer ring, and the first sliding groove is formed in the inner wall of the first groove. According to the stable needle bearing, the threaded sleeve can be driven to transversely move by rotating the first bolt, the roller can be taken down when the threaded sleeve moves to the outer position of the rotating groove, and the threaded sleeve can be driven to move towards the interior of the rotating groove by reversely rotating the first bolt; a second bolt can drive a limiting block to transversely move through a second rotating block and a second rotating groove while rotating in the inner threaded pipe, the limiting block can li