Project Description
Bronze Eccentric Bushing
A bronze eccentric bushing, also known as a bronze eccentric bearing or bushing, is a mechanical component used in various applications to provide rotational support and reduce friction between two moving parts. It is typically made from bronze, a material known for its good wear resistance and self-lubricating properties.
Casting Bronze Eccentric Bushings
The term “eccentric” refers to the fact that the inner diameter of the bushing is not concentric with the outer diameter. This design allows for adjustable positioning of the bushing, which can be beneficial in certain applications where precise alignment or adjustment is required.
Bronze eccentric bushings are typically manufactured using a process called centrifugal casting, which helps ensure a uniform and dense material structure. This is important for maintaining the desired mechanical properties and wear resistance of the bushing.
The eccentric design involves the off-center positioning of the inner bore in relation to the outer diameter. This allows for the adjustment of the relative position between two connected components when the bushing is rotated. Eccentricity can be controlled to provide varying degrees of adjustment, allowing for fine-tuning in specific applications.

Global Eccentric Bushings Supplier
The world of machinery is complex, and every component plays a vital role in ensuring smooth operations. Bronze eccentric bushings, exemplified by the Inner Eccentric Bushing, exemplify precision engineering and design. From aligning moving parts to reducing friction, these components contribute to enhanced machinery performance across industries. As a global supplier, Bronzeoilless.com takes pride in offering replacements that adhere to the highest standards, providing you with the tools to optimize your operations efficiently.
At our esteemed manufacturing facility, we’re not just in the business of creating eccentric bushings – we’re committed to delivering excellence at every step of the process. From research and design to final delivery, our in-house capabilities ensure that you receive nothing short of the best.

Navigating Excellence with Customized Bearing Bronze Sliding Eccentric Bushings
A Symphony of Materials: The Art of Alloy Selection
Material grade (GB) | Main features | Applications |
ZCuPb10Sn10 | Lubrication performance, wear resistance and corrosion resistant performance is good, suitable for bimetal casting materials | Surface pressure is high, and there is the lateral pressure of the sliding bearing, such as rolling rolling, vehicle use bearing, load peaks 60 mpa hit parts, as well as the highest peak of 100 mpa bimetallic bearing bush of the internal combustion engine, and the piston pin sets, lining, etc. |
ZCuPb15Sn8 | Under the condition of lack of lubricant and use water quality lubricants, sliding and lubricating, free cutting, casting performance is poor, for dilute sulfuric acid corrosion resistant performance is good | Surface pressure is high, and the lateral pressure of bearing, copper cooling pipe can be made from cold rolling mill, impact resistance load of up to 50 mpa parts, internal combustion engines of bimetallic bearing, mainly used for the biggest load of 70 mpa of piston pin set, acid-proof accessories |
ZCuPb20Sn5 | At higher sliding performance, in the absence of a lubricating medium and water as medium are particularly good self-lubricating performance suitable for bimetal casting material, sulfuric acid corrosion resistance, easy cutting, casting performance is poor | High sliding speed of the bearing, and crusher, water pump, cold rolling mill bearings, piston pin load of 70 mpa |
ZCuPb30 | Have good self-lubrication, free cutting, casting performance is poor, easy to produce the gravity segregation | High sliding velocity of bimetallic bearing shell, wearing parts, etc. |
ZCuZn25Al6Fe3Mn3 | With high mechanical properties, the casting performance is good, good corrosion resistance, has a tendency to stress corrosion | Suitable for high strength, wear parts, such as bridge plate, nut, screw, wear-resistant plate, the slider, and worm gear, etc |
ZCuZn26Al4Fe3Mn3 | With high mechanical properties, the casting performance is good, in the air, water, and seawater corrosion resistance is good, can be welded | Require high strength, corrosion resistant parts |
ZCuZn38Mn2Pb2 | Have higher mechanical properties and good corrosion resistance, abrasion resistance, good cutting performance | General purpose structure, ship, instrument appearance, simple casting using such as sleeve, sleeve, bearings, slider, etc |
ZCuZn40Mn3Fe1 | With high mechanical properties, good casting properties and machinability, and in the air, water, and water has good corrosion resistance, has a tendency to stress corrosion cracking | Seawater corrosion parts, pipe fittings and under 300 °C, manufacturing and other large Marine propeller castings |
ZCuZn33Pb2 | Structural material, feed temperature is 90 °C when good oxidation resistance, electrical conductivity of about 10 ~ 14 ms/m | The shell of gas and water supply equipment, machinery manufacturing, electronics, precision instruments and optical instruments of component parts |
Other standard and material | ASTM, JIS, AISI, EN, BS; Manganese brass: C86300 and etc.; Tin bronze: C83600, C93200, CuSn12, CuSn7Zn4Pb7 and etc.; Aluminum Bronze: C62900, C95400, C95500, CuAl10Fe5Ni5 and etc.. |