Oil Impregnated Bronze Bushing is widely used in many fields such as home appliances, motors, automobiles, industrial equipment, etc. due to its excellent self-lubricating performance, easy maintenance, wear resistance and durability. With the continuous improvement of China's manufacturing technology level, more and more local companies have stood out in the field of oil-impregnated bearings, and have won wide recognition in the domestic and foreign markets with stable product quality, mature production technology and good customer service. The following are five leading oil-impregnated bronze bushing suppliers in China, with strong R&D capabilities and export competitiveness, worthy of buyers' attention.
Jiande Welfine Technology Co., Ltd. was established in 2001. It is a high-tech enterprise focusing on powder metallurgy sintering and related machining. The company covers an area of 13,039 square meters and has advanced production facilities. It has a professional team of 50 people, including 40 production personnel and 5 technical R&D and quality management personnel. It has passed ISO9001:2015 and IATF16949:2016 management system certification. Always adhering to the concept of technology leadership and quality first, we are committed to becoming an industry benchmark and providing customers with high-quality products and services.
Technology R&D Advantages
As a national high-tech enterprise, the company always puts scientific research and technological innovation first. Focusing on the field of powder metallurgy for many years, the company has accumulated profound professional experience and continuously optimized the production process. With a 5-person technical R&D and quality management team, it has established a leading position in the industry by continuously improving manufacturing processes and improving product performance, and can meet customers' diverse and high-quality product needs.
Production Equipment Advantages
The company is well-equipped, with 20 high-efficiency presses, 4 high-temperature sintering furnaces, 15 precision shaping machines and thousands of high-quality molds, and has strong production capacity. In addition, it is also equipped with advanced processing equipment such as lathes, grinders, bench drills, etc., which can cope with various difficult processing needs, greatly improve production efficiency, and provide solid guarantees for efficient production and product quality.
Quality Control Advantages
It has passed ISO9001:2015 and IATF16949:2016 management system certification and established a strict quality control system. From raw material procurement to product production, testing, and delivery, every link is strictly controlled to ensure the high reliability and stability of the product, win the trust of customers with high-quality products, and meet the stringent requirements of customers in different industries for product quality.
Development History and Experience Advantages
Since its establishment in 2001, it has accumulated rich industry experience after years of development. It started to produce SUS products in 2003, passed ISO 9001 certification in 2006, obtained export rights in 2008, and cooperated with Sumitomo of Japan in 2010. In the process of development, it continuously expands its business, improves its own strength, accurately grasps industry trends, can better respond to market changes, and provide customers with better services.
A well-known enterprise in the industry, focusing on the research and development of high-porosity (20-30%) oil-bearing bronze bushings. Using the American C95400 aluminum bronze powder metallurgy process, the oil content can reach 18%-22%, and the self-lubricating life exceeds 8,000 hours. The product has passed ISO 9001/TS 16949 certification and is a global core supplier of Bosch power tools, with an annual production capacity of over 50 million pieces.
The Japanese Oiles production base in China has created the original "three-dimensional mesh oil channel" technology, which increases the oil storage capacity by 40% compared with traditional products. It uses Japanese JIS BC3 standard bronze alloy, and the friction coefficient is stable in the range of 0.08-0.12. It is mainly used for Honda gearbox guide sleeves, with a temperature resistance range of -30℃~150℃.
Focus on miniature oil-containing bushings (φ3-φ25mm) and adopt German GKN sintering technology. The material ratio is CuSn8P+0.5% graphite, and the pore distribution uniformity reaches ±2%. We supply more than 100 million pieces of home appliance motor bushings annually, and the failure rate of Gree air conditioner condenser fan special bushings is less than 0.1‰.
Relying on the advantages of copper alloy smelting, we developed JTC-102 special oil-bearing bronze. The vacuum oil immersion + centrifugal deoiling process is adopted to improve the oil film retention by 50%. The product is used in BYD's new energy vehicle electric water pump and has passed the 2000-hour salt spray test.
What is the difference between oil-impregnated bronze sleeves and ordinary copper sleeves?
Oil-impregnated sleeves have a porous structure and contain lubricating oil inside, which has excellent self-lubricating performance; ordinary copper sleeves are solid structures and require external oil supply or manual lubrication. Oil-impregnated sleeves are suitable for enclosed spaces or equipment that is maintenance-free for a long time, while ordinary copper sleeves are suitable for high loads and occasions that require manual lubrication.
Are oil-impregnated sleeves suitable for high-load occasions?
Generally, oil-impregnated bronze sleeves are more suitable for environments with medium and low loads, continuous operation but inconvenient lubrication, such as motors, home appliances, printers, etc. If used in high-load or impact conditions, thickened models or models with added strengthening elements should be selected, or other materials (such as aluminum bronze) should be considered as substitutes.
Can oil-impregnated bronze sleeves be used without lubricants?
Yes. The oil-impregnated sleeves are pre-impregnated with lubricating oil, and no external refueling is required. They can run for a long time with self-lubrication. However, under extremely high temperature or long-term operation conditions, the oil may evaporate. It is recommended to check or replace them regularly to ensure the lubrication effect.
Can the size of the oil-impregnated sleeves be customized?
Yes. Most manufacturers provide customized services according to drawings, including inner diameter, outer diameter, length, tolerance grade, etc. For bulk orders or special structures (such as sleeves with flanges and special-shaped holes), they can also be customized according to the use requirements.
What is the temperature range of oil-containing sleeves?
Generally, it can be used normally between -40℃ and +120℃, and high-temperature special oil-immersed sleeves can withstand higher temperatures (up to 200℃). If used in a high-temperature environment, it is necessary to confirm whether the type of lubricant is suitable to prevent the evaporation of oil from causing dry friction of the sleeve