Roller

There is a steel cage in the bearing of the needle roller manufacturer of the correction wire, which can store the needle inward. The design scheme shows the compressive strength of the cage which meets the requirement of long service life.

The stopper is axially and accurately positioned by the outer flange, and only touches the roller near the top and the pitch diameter of the roller, so as to obtain accurate guidance with less force. At least the in-situ stress on the transparent holder is caused by the guide of the web end of the roller, and the reliability of the roller is guaranteed. The total contact area and force required by the guide roller are reduced reasonably and correctly, so that the friction resistance between the transparent holder and the roller is reduced to a low level. In order to improve the circulation system of lubricating grease, the design scheme keeps the management center area of transparent retainer open.