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What about thin-walled bearings? Advantages and uses of thin-walled bearings:
Today, thin-section bearings can be seen in the aerospace industry, the medical industry, manufacturing and even the robotics industry. But many people are still a little hesitant when choosing. After all, there are still many types of bearings on the market. So, what about thin-walled bearings? What are its advantages compared with other bearings, and what are its specific uses?
1. Advantages of thin-walled bearings
1. High precision
The precision level that thin-walled bearings can achieve is much higher than that of ordinary slewing bearings, and the radial runout and axial runout that can be achieved are much higher than ordinary slewing bearings.
2. Good rigidity
Thin-walled bearings are much more rigid than ordinary slewing bearings, and their operating noise is lower than that of crossed roller bearings. Therefore, it is better to choose crossed roller slewing bearings in a low-noise working environment.
3. Simple structure
(1) Light weight and small space. The structure of thin-walled bearings is relatively simple. Through a row of cylindrical rolling elements arranged cross-wise on a single raceway, considerable bearing capacity, radial bearing capacity and overturning moment can be obtained, while ordinary slewing bearings must pass through three rows. The cylindrical rolling elements are arranged sequentially on three rows of raceways to achieve the same effect. In this comparison, thin-walled bearings take up much less space and are lighter in weight than ordinary three-row roller slewing bearings.
(2) Low assembly difficulty. The structure of thin-walled bearings is much simpler than that of traditional bearings. Through the multi-row arrangement of cylindrical rolling elements, considerable axial and radial bearing capacity and overturning moment can be obtained. The structure is relatively simple, while traditional bearings must pass multiple The sleeve bearings are arranged in order to achieve the same effect, which brings great convenience in terms of design and assembly. And because the single-row raceway structure occupies much less equipment space than traditional bearings, the difficulty of assembly is also greatly reduced.
2. Application of thin-walled bearings
1. Application of thin-walled deep groove ball bearings
Thin-wall deep groove ball bearings are suitable for high or even very high speed operation, and are very durable and require no frequent maintenance. This type of bearing has a small friction coefficient and a high limit speed. Generally, deep groove ball bearings are used in agricultural machinery, construction machinery, engineering machinery, etc.
2. Application of thin-walled four-point contact ball bearings
Thin-wall four-point contact ball bearings, four-point contact ball bearings are suitable for bearing pure axial loads or combined axial and radial loads dominated by axial loads. Because it is a double-half inner ring (or outer ring), the number of balls is increased, and it has a larger bearing capacity. Widely used in aerospace, industrial robots, medical equipment, precision turntables, CNC machine tools, communication radars, welding equipment, astronomical instruments, clamping equipment, antennas and optical equipment, food processing equipment, glass production equipment.
3. Application of thin-walled angular contact ball bearings
Thin-wall angular contact bearings are suitable for high-speed and high-precision rotating equipment, which can be divided into single row angular contact ball bearings and double row angular contact ball bearings. Single row angular contact ball bearings can only bear axial load in one direction. When bearing radial load, it will cause additional axial force. It is generally used in machine tool spindles, electromechanical equipment, food processing machinery and other equipment. The double row angular contact ball bearing is characterized by being able to bear the combined load of radial and axial loads at the same time, limiting the axial displacement of the shaft in both directions. It is used in food packaging machinery, fine chemical machinery and other equipment.
The above is the whole content of thin-walled bearings, the advantages and uses of thin-walled bearings summarized by the editor for everyone. It can be seen that thin-walled bearings have the characteristics of high precision, good rigidity, light weight, and low assembly difficulty. It is also because of these characteristics that thin-walled bearings are widely used in mechanical equipment. It can be seen that thin-walled bearings are still very popular in the mechanical field.
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