Despite the simple structure of bearings, innovations in materials and manufacturing processes are constantly driving efficiency, longevity and cost-effectiveness. The following are the main innovations and development trends in the field of bearing materials:
Precision chromium alloy
By improving the smelting process, the chromium steel with finer grain is produced, which not only improves the accuracy of ball bearings, but also makes them quieter. This material has excellent hardness, wear resistance and fatigue resistance.
Tungsten carbide application
Under high load and high temperature environment, traditional stainless steel bearings are difficult to meet. The application of superhard metals such as tungsten carbide provides a long-life, wear and corrosion resistant solution for these extreme conditions, significantly enhancing the durability of the bearing.
The progress of plastic bearings
Plastic bearings, once limited to low-load applications, have now become a reliable choice for a variety of application scenarios due to the development of new plastic materials. They have good corrosion resistance and impact strength, require almost no lubrication, and are produced quickly and delivered quickly.
Polymer solid lubricating oil
A microporous polymer structure containing oil is used to fill the inner space of the bearing, gradually releasing the lubricating oil during rotation, extending the service life of the bearing and increasing the lubricant capacity by about 25%-30%. This technology is particularly favored by the food manufacturing industry.
Advanced coating technology
In order to break through the limitations of traditional materials and treatment methods, the industry has introduced coating technologies such as DLC (diamond-like carbon) or zirconium nitride, as well as new processes such as surface texture processing to improve wear resistance and reduce friction, making bearings more suitable for harsh environments and dry lubrication conditions.
With the rise of the electric vehicle industry, bearing materials must adapt to the characteristics of high-speed motor operation, while solving potential electrical problems. Design engineers are also exploring the best lubrication methods to ensure minimal friction and metal contact under actual operating conditions, while taking into account the aging of the lubricant.
