Low friction and reduced wear extend equipment life: Cast copper materials (such as tin bronze and aluminum bronze) inherently possess excellent self-lubricating properties and wear resistance. Free tin, lead, and other elements contained in their metal crystal structure form a natural lubricating layer on the friction surface, reducing direct metal-to-metal contact.
Precise support and positioning ensure stable movement: Cast copper sleeves, through their precise fit with the shaft and housing, provide stable radial support for shaft components, limiting radial displacement and runout, ensuring accurate and stable mechanical movement.

Product Advantage
Self-lubricating and wear-resistant
Copper naturally contains lubricating elements, resulting in a low coefficient of friction. This reduces wear and extends equipment life without the need for frequent lubrication.
Stable and precise support
Precision fit limits radial runout of the shaft system, absorbs installation errors and vibration, and ensures mechanical motion accuracy.
Adaptable to working conditions
High-temperature and corrosion-resistant, it operates stably in humid, dusty, and other complex environments, offering a wide range of applications.
Low maintenance costs
The material's high toughness makes it less susceptible to breakage due to impact, and wear and tear can be easily replaced, reducing equipment downtime and maintenance costs.

About bush bronze Manufacture
Jiande Welfine Technology Co., Ltd. is a light-duty bronze bushing manufacturer ,we have been deeply engaged in the powder metallurgy field for 21 years. Our 14,000 square meter, high-standard facility is equipped with 20 high-efficiency presses, four high-temperature sintering furnaces, and 15 precision shaping machines to ensure high-precision production. As a national high-tech enterprise, we have obtained ISO9001:2015 and IATF16949:2016 certifications, and our independent laboratory rigorously controls the quality of each batch of products. Our products include bearing bushings, graphite bronze bushings, self-lubricating bushings, and flange bronze bushings. We offer OEM customization services and, with our stable quality and professional after-sales service, we are your reliable partner for business success.
FAQ
Q: What copper alloys do your cast copper bushings use?
A: We primarily use tin bronze (such as ZCuSn10Pb1) and aluminum bronze (such as ZCuAl10Fe3). Tin bronze offers superior self-lubricity, while aluminum bronze offers greater wear resistance and strength. We can recommend the appropriate material based on the application.
Q: Can the product be customized to our drawings?
A: We offer full customization options, including ID, OD, length, and special groove configurations. The minimum order quantity for customized designs is negotiable.
Q: What is the surface roughness of the bushings?
A: We can achieve a surface roughness of Ra0.8-1.6μm. Precision machining ensures a stable clearance of 0.01-0.03mm with the shaft, fully meeting high-precision assembly requirements.
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