Rolling bearing is the sliding friction between the running shaft and shaft seat into rolling friction, so as to reduce the friction loss of a kind of precision mechanical components.Rolling bearings are generally composed of an inner ring, an outer ring, a rolling body and a cage. The role of the inner ring is to match and rotate with the shaft.The role of the outer ring is to cooperate with the bearing seat and play a supporting role;The rolling body is evenly distributed between the inner ring and the outer ring by means of the cage. Its shape, size and number directly affect the service performance and life of the rolling bearing.The cage can make the rolling body evenly distributed and guide the rolling body to rotate for lubrication.

1. Outer ring — installed in the bearing seat hole, generally do not rotate

2. Inner ring — mounted on the journal and rotated with the shaft

3. Roller — the core component of rolling bearings

4. Cage frame — evenly separate the rolling body to avoid friction

Lubricants are also considered to be the fifth largest parts of rolling bearings, which mainly play the roles of lubrication, cooling and cleaning

In the processing of bearing parts, a large number of special equipment for bearing are used.Such as steel ball processing using grinding machine, grinding machine and other equipment.The characteristics of specialization are also reflected in the production of bearing parts, such as steel ball companies specializing in the production of steel balls, micro bearing factories specializing in the production of micro bearings.

Due to the mass scale requirements of bearing production, it is possible to use advanced machine tools, tooling and technology.Such as CNC machine tools, three jaw floating chuck and protective atmosphere heat treatment.

The specialization of bearing production provides the conditions for its production automation.In the production of a large number of automatic, semi-automatic special and non-special machine tools, and the production of automatic line gradually spread application.Such as heat treatment automatic line and assembly automatic line.

1, small friction resistance, low power consumption, high mechanical efficiency, easy to start;

2, size standardization, interchangeability, easy to install and disassemble, convenient maintenance;

3. Compact structure, light weight, smaller axial size;

4, High precision, large load, small wear, long service life;

5. Some bearings have the performance of automatic self-aligning;

6, suitable for mass production, stable and reliable quality, high production efficiency;

7. The transmission friction torque is much lower than the hydrodynamic pressure bearing, so the friction temperature rise and power consumption are low;

8. The starting friction moment is only slightly higher than the rotating friction moment;

9. The sensitivity of bearing deformation to load change is less than that of hydrodynamic bearing;

10, only need a small amount of lubricant can operate normally, can provide lubricant for a long time during operation;

11. The axial size is smaller than the traditional hydrodynamic pressure bearing;

12, can bear radial and thrust combined load at the same time;

13, In a large load-speed range, the unique design can obtain excellent performance;

14. Bearing performance is relatively insensitive to the fluctuations of load, speed and running speed.

E-mail：bearing6@hyzcgroup.com