Historical development of self-lubricating bearings

Self-lubricating bearings offer distinct benefits, including the absence of the need for lubrication, excellent wear resistance, and strong heat tolerance. These features make them especially well-suited for environments with low speeds, heavy loads, and challenging conditions (such as extreme temperatures, vacuum environments, high altitudes, or corrosive settings, where traditional lubrication is difficult or impractical). As a result, they are widely applied across various industries, including automotive, construction machinery, port equipment, plastic processing, agriculture, hydraulics, forging, textiles, office technology, and more. Particularly in sectors where conventional bearings are used, switching to self-lubricating options can enhance the performance of machinery while reducing maintenance needs, positioning these bearings as a key area of interest with significant growth potential in the future.

Started in the UK in the 1950s and developed globally in the 1970s
The manufacturing technology of self-lubricating bearings originated in the UK. In the 1950s, PTFE (polytetrafluoroethylene) began to be tested as a bearing material in the UK, and the copper powder sintering process also achieved a breakthrough. In the late 1960s, self-lubricating bearings began to enter cutting-edge technology applications such as aerospace. Since the 1970s, British self-lubricating bearing manufacturers have licensed technology to French, German, Japanese and American companies. This move has promoted the rapid development of the world's self-lubricating bearing industry, and self-lubricating bearings have gradually entered all mechanical manufacturing fields.
After entering the 21st century, with the rapid development of the global economy and the transformation and upgrading of the manufacturing industry, the market demand for self-lubricating bearings has continued to grow. Especially in emerging fields such as new energy and intelligent manufacturing, the application prospects of self-lubricating bearings are broader. At the same time, with the improvement of environmental awareness and the requirements of sustainable development, self-lubricating bearings, as an energy-saving and environmentally friendly product, have also been favored by more and more companies.

Self-lubricating bearings in Jiashan, Zhejiang Province have emerged as a new force
The development time of China's self-lubricating bearing market is relatively short, and it started much later than developed countries. Overall, there are more small and medium-sized enterprises in the low-end and mid-end markets, and the production level is not high. Although a few companies in the mid-to-high-end market have a large market share, they still rely heavily on imported products.
With the continuous R&D investment and process improvement of Chinese sliding bearing companies, Jiashan, Zhejiang Province has emerged as a new force in the self-lubricating bearing market and has become an industry leader. "Buy oil-free bearings, go to Jiashan, Zhejiang" has become a consensus among people inside and outside the industry.

Zhejiang Mingxu Machinery Manufacturing Co., Ltd. is located in the hinterland of oil-free self-lubricating bearing manufacturing industry in Jiashan County, Zhejiang Province. With more than ten years of industry experience, it is committed to the manufacture and development of solid self-lubricating wear-resistant parts, and has successively developed high-temperature maintenance-free bearings, heavy-load oil-free bearings and impact-resistant high-strength wear-resistant plates and other product series. The products include JDB solid inlaid self-lubricating copper bushings and wear-resistant plates, automotive standard guide bushings and accessories, steel-copper sintered bearings, DU oil-free bearings, bimetallic bearings, etc. They are widely used in many mechanical manufacturing fields such as the automotive industry, construction machinery, metallurgical equipment, mining machinery, injection molding, molds, textiles, printing, etc., and are deeply recognized and loved by domestic and foreign customers.

New energy vehicles drive a large demand
With the continuous advancement of automation and Industry 4.0, the demand for efficient, reliable and low-maintenance equipment has increased. Self-lubricating bearings, as one of the key components, have received widespread attention and application, including machinery manufacturing, automobiles, aerospace, power and other industries.
At this stage, foreign countries have begun to use self-lubricating bearings to replace rolling bearings in some sub-sectors such as marine engines and aerospace. In the Chinese automotive field, the number of self-lubricating bearings used in each passenger car has increased from 30 to more than 100 at present, and they are constantly replacing needle rollers and powder bearings. At the same time, new energy vehicles have brought some requirements for electrification, lightweight, improved comfort and low noise, which will also drive the penetration rate of self-lubricating bearings and similar products.

The global self-lubricating bearing market will reach $6.559 billion in 2029
Data shows that the global self-lubricating bearing market is expected to reach $6.559 billion in 2029, with a CAGR of 7.2% in the next few years.

From the perspective of the competitive landscape, the global self-lubricating bearing market shows a trend of head concentration. Some international giants such as Daido Metal, Oiles Corporation, GGB, etc. have occupied the high-end market with strong technical strength and brand influence. At present, the global core manufacturers are mainly distributed in the United States, Europe, Japan, etc. With the continuous R&D investment and process improvement of Chinese self-lubricating bearing companies, their competitiveness in certain product areas has gradually become prominent, and their products have been gradually exported to foreign countries, and their competitiveness in foreign markets has continued to improve. The products of Chinese companies (such as Zhejiang Mingxu Machinery Manufacturing Co., Ltd.) are increasingly accepted by foreign parts manufacturers, and product exports are on the rise. In the future, with the intensification of market competition and the promotion of technological innovation, Chinese self-lubricating bearing companies are expected to occupy a more important position in the global market.

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