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Maximum Outer Diameter up to 4000 mm
Maximum Weight of a Single Piece 5 tons
Bronze eccentric bushings have an off-center bore that does not align with the outer diameter, creating a slight eccentric distance. This design helps generate a mild centrifugal force during rotation, which improves load distribution and enhances lubrication efficiency. Eccentric bushings are typically made of tin or aluminum bronze, which are materials known for their excellent wear resistance, low friction, and strong protection against corrosion.
Eccentric bushings provide stable and reliable support for shafts under both continuous and heavy-load operation. Each bronze eccentric bushing can be customized according to the equipment’s design and performance requirements, with micron-level precision that ensures a perfect fit and long service life.
A variety of bronze alloys are available to meet different application needs, including C93700, C94100, C93800, and C95800.
| Material No. | Category | Core Properties | Typical Applications |
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High-Leaded Tin Bronze | • Low friction and good anti-seizing performance • Excellent castability and smooth surface finish • Tensile strength: 240–320 MPa |
Used for small and medium-sized bearing sleeves, machine tool sliding parts, and hydraulic valve components. |
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High-Strength Aluminum Bronze | • Resistant to seawater and chemical corrosion • High mechanical strength and good stability under heavy load • Reliable performance at medium to high temperatures |
Applied in marine propellers, chemical processing equipment, and medium-load bearing housings. |
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Leaded Tin Bronze (High Strength) | • Strong wear resistance and load capacity • Better impact resistance than C93700 • Good machinability |
Used in heavy-duty bearing shells, press sleeves, and large pump housings. |
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High-Strength Aluminum Bronze | Aluminum Bronze • High strength and hardness • Excellent wear and corrosion resistance • Stable performance at 300–350 °C |
Suitable for mining and forging equipment, large aluminum mill spindles, and rolling mill bearings. |
We handle every production stage independently, from the development and casting of bronze wear parts to machining and quality inspection. This allows us to have full control over product quality and ensures that each process is backed by our proprietary know-how and patented technologies.
Backed by more than 40 years of experience, we specialize in bronze wear parts for wind power, mining, hydropower, marine, and oil extraction equipment. Our product catalog includes bronze and steel bearings, bushings, and other wear components. We have long-term partnerships with several Fortune 500 companies within these industries.
Our workshop is equipped with 20 advanced five-axis machining centers from MAZAK and MAKINO, along with 35 imported turning and milling machines. The 5,000 m² temperature-controlled facility is operated by experienced CNC technicians who make sure every part is machined with accuracy and consistency.
We manage every step of production in-house, following ISO9001 and CCS quality standards to ensure consistent results. Our CNAS-accredited laboratory (CNAS L5937) and skilled inspection team handle all testing and verification, including material composition, hardness, tensile strength, and microstructure, along with non-destructive tests such as UT, PT, and VT. All procedures comply with GB, ASTM, ISO, JIS, and YS standards.
From bronze bushings and bearings to customized wear components, we’re here to help you find the right solution for your equipment.
Bronze eccentric bushings are made from high-lead bronze alloys such as ZCuPb10Sn10, ZCuPb15Sn8, and ZCuPb20Sn5. These alloys provide excellent self-lubricating, anti-seizing, and wear-resistant properties, allowing stable performance even under strong impact and heavy dust exposure. The wear resistance can also be enhanced through customized designs to meet the demands of abrasive working conditions.
High-precision bushings are manufactured through centrifugal casting, five-axis CNC machining, and polishing. With strict quality control and CNAS-certified testing, tolerance accuracy reaches ±0.025 mm and surface roughness Ra ≤ 0.8 μm, meeting the standards required for CNC systems.
Bronze nuts, sliding bearings and other wear parts can be manufactured according to customer drawings and specifications. Each wear part will be manufactured with micron-level precision to match specific design or size requirements in different industries.
Inspection and testing reports can be issued according to railway industry standards. All reports follow ISO9001 and CNAS certification requirements to guarantee accuracy and reliability.
When evaluating new suppliers, buyers usually check ISO9001 quality management, environmental and safety certifications, material traceability, and other industry-specific approvals to ensure product reliability and compliance.
