Precision Linear Shaft has multiple ball circuits. When the linear bearing moves in the linear bearing, the balls roll along the linear axis in the raceway. There is a ball return groove inside each raceway, which forms a circular movement of the balls. closed circuit. There are three basic structural forms of linear bearings.
1.1 Standard
The outer surface of the standard Precision Linear Shaft is a high-precision cylindrical surface, and has a high degree of coaxiality with the linear bearing. It can be directly installed in the bearing for use. Both ends are fixed with retaining rings or glands. The installation is simple and convenient. Has a wide range of applications.
1.2 gap type
Gap type bearings are the same size as standard type bearings. Since the outer casing has an axial groove, it can be installed on a bearing seat with adjustable inner diameter, so that it is easy to adjust the gap between the bearing and the shaft. This type of bearing can be adjusted to obtain a small radial clearance, thus ensuring that the bearing has a high radial working progress.
1.3 open type
The outer ring of the open type bearing has an opening equivalent to the width of the ball circuit of a row of steel balls. This kind of bearing can be used in the occasion where the shaft has been fixed on the support rod or support to prevent the shaft from bending. The clearance of this kind of bearing is also easy to adjust. When the linear shaft is long and the load is small, the use of open bearings not only solves the problem that the linear bearing is easy to bend, but also makes the structure light and compact.
