Do you know the role of urethane covered bearing?

Bearings are often used after encapsulation. urethane covered bearing can make the life of the bearing longer and meet the requirements.

Of course, under different production environments, the requirements for bearing encapsulation are different. Sometimes it is required to be wear-resistant, and sometimes it is required to be resistant to high temperature. Sometimes ink resistance is required. All the problems can be solved by finding a rubber roller factory to urethane covered bearing.

China is one of the earliest countries in the world to invent rolling bearings. In ancient Chinese books, there are long records about the structure of axle bearings.

According to archaeological relics and data, China’s oldest bearing with the prototype of a modern rolling bearing structure appeared in Xuejiaya Village, Yongji County, Shanxi Province from 221 to 207 BC (Qin Dynasty). After the founding of New China, especially since the 1970s, under the strong promotion of reform and opening up, the urethane covered bearing industry has entered a new period of high-quality and rapid development. At the end of the seventeenth century, British C. Wallo designed and manufactured ball bearings, and installed them on mail trucks for trial use, and British P. Worth obtained a patent for ball bearings.

At the end of the eighteenth century, German H.R. Hertz published a paper on the contact stress of ball bearings. On the basis of Hertz's achievements, R. Stribeck in Germany, A. Palmgren in Sweden and others have conducted a large number of experiments, which have contributed to the development of rolling bearing design theory and fatigue life calculation. Subsequently, Russia’s N.P. Petrov applied Newton’s law of viscosity to calculate bearing friction.

British O. Reynolds conducted a mathematical analysis of Thor’s discovery and derived the Reynolds equation, thus laying the foundation for the theory of hydrodynamic lubrication. In the 50 years since the founding of the People's Republic of China, China's urethane covered bearing industry has achieved world-renowned achievements.

In terms of its function, it should be support, that is, it is used to support the shaft literally, but this is only part of its function. The essence of support is to be able to bear radial loads. It can also be understood as it is used to fix the shaft. It is to fix the shaft so that it can only achieve rotation, while controlling its axial and radial movement. The consequence of the motor without bearings is that it cannot work at all. Because the shaft may move in any direction, and the motor is required to only rotate when it is working.

Theoretically speaking, it is impossible to achieve the role of transmission. Not only that, the urethane covered bearing will also affect the transmission. In order to reduce this effect, good lubrication must be achieved on the urethane covered bearing of the high-speed shaft. Some urethane covered bearing are already lubricated, which are called pre-lubricated bearings. Most bearings must have lubricating oil. When the load is running at high speed, friction will not only increase energy consumption, but more terribly, it is easy to damage the bearings. The idea of ​​turning sliding friction into rolling friction is one-sided, because there is something called sliding bearings.

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