Shanghai Tongzai Bearing Co., Ltd

Address: No. 3329, Jinqian Highway, Fengxian District, Shanghai

Tel: ＋86 21-31261582 ＋86 15000029966

Email: 171087307@qq.com

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Introduction to High-temperature Thin-walled Bearings:

High temperature thin-walled bearings refer to bearings with ultra-thin outer and inner rings, whose outer diameter to inner diameter ratio is usually less than 1.25. This structure makes the difference between the inner and outer diameters of the bearing very small, achieving ultra-thin bearing walls. At the same time, this type of bearing can operate stably in high temperature environments and can typically withstand temperatures ranging from hundreds to thousands of degrees Celsius without failure.

The main characteristics of high-temperature thin-walled bearings include:

Excellent high-temperature resistance: High-temperature thin-walled bearings can maintain good lubrication performance and load-bearing capacity in high-temperature environments. They can withstand high temperatures ranging from several hundred degrees Celsius to over a thousand degrees Celsius without failure, ensuring the continuous operation of equipment under high-temperature working conditions.

Exquisite material selection: They are usually made of high-temperature resistant alloy steel, ceramics, or other special materials. These materials are not only resistant to high temperatures but also possess good corrosion resistance and wear resistance. For example, heat-resistant alloys such as tungsten and rhenium are used to manufacture rolling elements and cages, and ceramic materials are used to make seals to ensure the stable operation of the key components of the bearings.

Structural optimization: By improving the internal structure of the bearing, such as adding heat dissipation channels and optimizing the raceway design, the heat dissipation efficiency is enhanced, and the problems of thermal expansion and thermal stress caused by high temperatures are reduced. This design helps to reduce friction and wear, ensuring the stable operation of the bearing at high temperatures.

Innovative lubrication system: Solid lubricants, high-temperature greases, or specially designed lubrication systems are adopted to ensure good lubrication performance even at high temperatures, reducing friction and wear. For example, solid lubricants such as graphite and molybdenum disulfide are used, or high-temperature greases with special formulations are applied.

Low friction coefficient: Through optimizing the material structure and surface treatment technologies, such as ion nitriding, hard chromium plating and other processes, a hardened layer with low friction characteristics is formed, further reducing the friction coefficient and minimizing energy loss and heat generated by friction.

High precision and high rigidity: During the design stage, through strict mechanical calculations and simulation analyses, the dimensions and shapes of each component of the bearing are accurately determined. In the manufacturing process, advanced processing techniques and precise processing equipment are used to ensure that the bearing can still maintain accurate operation precision under high temperatures and loads.

The application scenarios of high-temperature thin-walled bearings mainly include the following aspects:

Metallurgical industry: In the metallurgical industry, high-temperature thin-walled bearings are widely used in equipment such as high-temperature burden conveyors and high-temperature steam turbines. These devices operate in high-temperature environments and require bearings with excellent high-temperature resistance and stability.

Petrochemical industry: During the petrochemical production process, high-temperature thin-walled bearings are used in equipment such as steam turbines, high-temperature pumps, and high-temperature compressors. These devices operate in high-temperature, high-pressure, and corrosive environments, and the bearings are required to have the characteristics of high-temperature resistance, wear resistance, and corrosion resistance.

Aerospace field: In the aerospace field, high-temperature thin-walled bearings are widely used in key equipment such as high-temperature turbines and high-temperature aero-engines. These devices need to operate under extreme conditions, so the requirements for the high-temperature resistance of the bearings are extremely high.

Automotive industry: Although thin-walled bearings themselves do not specifically refer to high-temperature environments, in the automotive industry, thin-walled bearings are widely used in components such as the suspension system, engine components, automotive wheels, transmissions, and drive shafts of automobiles due to their characteristics of high speed ratios and low frictional resistance.

Other industries: High-temperature thin-walled bearings are also widely used in fields such as power, industrial manufacturing, rail transit, shipbuilding, and the wind power industry. The equipment in these industries needs to operate in environments with high temperatures, high pressures, and high speeds, and has high requirements for the high-temperature resistance of the bearings.