As an important component of industrial machinery, bearings are used to bear the loads generated during the operation of shafts and other internal components, as well as to reduce the friction coefficient of mechanical rotating bodies. They directly determine the performance, level, quality, and reliability of related machinery and equipment. According to the different friction properties in bearings, bearings can be divided into rolling bearings and sliding bearings. Among them, rolling bearings can be further divided into ball bearings and roller bearings according to the types of rolling elements. In addition, according to the "Classification of Rolling Bearings (GB/T271-2017)", rolling bearings can be classified into micro, small, medium small, medium large, large, extra large, and large types based on their nominal outer diameter dimensions. Micro bearings refer to bearings with a nominal outer diameter range of 26mm or less.
The upstream of the micro bearing industry chain includes suppliers of metal materials such as bearing steel, copper, aluminum, and non-metallic materials such as modified plastics, as well as manufacturers of precision machining equipment, testing instruments, and other production equipment. Their technological breakthroughs and cost control directly affect the midstream manufacturing process; Midstream is a micro bearing production enterprise that converts raw materials into high-precision, low-noise bearing products through precision forging, heat treatment, ultra precision grinding and other processes. Some enterprises have achieved full industry chain localization; The downstream application fields are extensive, covering high-end equipment fields such as automobiles, home appliances, medical devices, consumer electronics, and industrial robots. The technological upgrading and emerging scene expansion of downstream industries continue to drive the iteration of micro bearings towards miniaturization, high speed, and long life.
From the perspective of market size, with the rapid growth of emerging consumer electronics markets represented by smartphones and tablets, as well as the vigorous development of industries such as industrial equipment, household appliances, consumer electronics, instrumentation, medical equipment, and automobile manufacturing, the overall scale of the micro bearing industry is showing a rapid growth trend. According to statistics, the global micro bearing market size in 2024 is 2.71 billion US dollars, a year-on-year increase of 3.43%.
In depth analysis and development trend of China's micro bearing industry market: Currently, China has become the world's third largest bearing production country in terms of sales and output, with a micro bearing market size of 12.78 billion yuan in 2024.
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