The role of cages in INA universal joint bearings
The use factors mainly refer to whether the installation adjustment, use and maintenance, maintenance and repair, etc. meet the technical requirements. According to the technical requirements for the installation, use, maintenance and maintenance of the universal joint bearing, the load, speed, working temperature, vibration, noise and lubrication conditions of the running INA bearing are monitored and inspected. Adjust to bring it back to normal. The installation condition is one of the primary factors in the use factor. The bearing is often changed due to improper installation, and the force state between the parts of the whole bearing changes. The bearing is operating in an abnormal state and the end of the service life is early. Refers to the three major factors that determine the quality of the bearing, such as structural design, manufacturing process and material quality.
The metallurgical quality of bearing materials used to be a major factor affecting the early failure of universal joint bearings. With the advancement of metallurgical technologies (such as vacuum degassing of bearing steels), the quality of raw materials has improved. The proportion of raw material quality factors in bearing failure analysis has dropped significantly, but it is still one of the main factors affecting INA bearing failure. The proper selection of materials is still a factor that must be considered in bearing failure analysis.
The bearing is a structure of a tape carrier and a cage. Among them, large-sized bearings are generally required to bear a large load, often without a cage, but filled with rolling elements between the inner and outer raceways. Most small and medium-sized rolling bearings are equipped with cages.
In the INA bearing process, how the outer ring, inner ring, rolling element and cage of the universal joint bearing are assembled. Simply put, the inner and outer rings of the bearing are placed first, the inner ring is placed sideways, then the rolling elements are placed (on one side), then the position of the rolling elements is adjusted, and finally, the cage is placed. Now everyone knows that there is also a cage in the processing of the bearing, so what is the main function of the bearing cage?
The role of the cage is:
1. Guide and drive the rolling elements to roll on the correct raceway;
2. The cage separates the rolling elements from each other and is evenly distributed on the circumference of the raceway to prevent the rolling bodies from colliding and rubbing during work;
3. In the split type bearing, the rolling element and a ferrule are combined to prevent the rolling elements from falling off.
The bearing is called a window and is used to isolate and guide the rolling elements. The pocket clearance allows the cage to have a certain amount of motion in the radial and axial directions. The total radial activity is called the gap of the cage. There are many types of structures and complicated shapes in the roller cage. There are many equidistant pockets on the cage. The shape of the pockets is spherical, round, elliptical, rectangular and toothed. The size of the pocket is larger than the size of the rolling element. The difference between the two is pocket clearance, sometimes for the bearing cage window. The portion of the connection between them is called a lintel, which acts to connect and increase the strength of the cage.
