Bronze Bearing Bushing Manufacturer & Material Guide

Bronze bearing bushings (also known as plain bearings or bronze bushings) are widely used in valves, hydraulic systems, construction machinery, heavy equipment, and general industrial applications.
Compared with rolling bearings, bronze bearing bushings perform better under low-speed, high-load, shock, and boundary lubrication conditions.

This page provides a clear material selection guide for bearing bushings, focusing on UNI EN 1982 and ASTM bronze equivalents to support engineering and international sourcing.

What Is a Bearing Bushing?

A bearing bushing is a cylindrical plain bearing designed to support shafts or pins through sliding motion.
Bronze is one of the most commonly used bushing materials due to its excellent wear resistance, load capacity, and anti-seizure performance.

Why Use Bronze Bearing Bushings?

Bronze bearing bushings offer several key advantages:

• Excellent wear resistance and anti-galling properties

• Good embedability for absorbing dirt and particles

• Suitable for low to medium speed and heavy-load applications

• Easy machining and custom manufacturing

• Compatibility with international standards (UNI / ASTM)

UNI EN 1982 vs ASTM Bronze for Bearing Bushings

For export-oriented projects and OEM equipment, understanding the equivalence between UNI EN 1982 and ASTM bronze materials is essential for correct bushing selection and specification compliance.

Leaded Tin Bronze Bearing Bushings

Typical UNI EN 1982 Grades:

• CC493K (CuSn7Zn4Pb7-B)

• CC494K (CuSn5Pb9-B)

• CC495K (CuSn10Pb10-B)

ASTM Equivalents:

• C93200 / C93500 / C93700

Applications

• General machinery bearing bushings

• Construction and agricultural equipment

• Medium-load sliding bearings

Features

• High lead content for excellent anti-friction performance

• Good shaft compatibility

• One of the most widely used materials for bearing bushings

Valve & Hydraulic Bronze Bushings

UNI EN 1982 Grade:

• CC491K (CuSn5Zn5Pb5-B)

ASTM Equivalents:

• C83600 (Ounce Metal)

• C84400 (Valve Metal)

• C83800 (Hydraulic Bronze)

Applications

• Valve bushings

• Pump bushings

• Hydraulic system bearings

Features

• Excellent casting properties

• Balanced strength and wear resistance

• Commonly used in valve and hydraulic components

High Lead Bronze Bushings for Heavy Load Applications

UNI EN 1982 Grades:

• CC496K (CuSn7Pb15-B)

• CC497K (CuSn5Pb20-B)

ASTM Equivalents:

• C93800 / C94300

Applications

• Low-speed, heavy-load bearing bushings

• Anti-vibration bushings

• Boundary lubrication conditions

Features

• Superior embedability

• Strong anti-seizure performance

• Extended service life for shafts and bushings

Tin Bronze & Nickel Bronze Bearing Bushings

UNI EN 1982 Grades:

• CC483K (CuSn12-B)

• CC484K (CuSn12Ni2-B)

ASTM Equivalents:

• C90800 (Tin Bronze)

• C91700 (Nickel Gear Bronze)

Applications

• High-strength bearing bushings

• Gear and pin bushings

• High-load and impact applications

Features

• High mechanical strength and fatigue resistance

• Excellent impact resistance

• Suitable for demanding industrial environments

How to Choose the Right Bearing Bushing Material?

When selecting a bronze bearing bushing, consider the following factors:

• Load type and magnitude

• Operating speed

• Lubrication conditions

• Working environment (temperature, corrosion, contamination)

• Required material standard (UNI / ASTM / customer specification)

Custom Bronze Bearing Bushing Manufacturer

We provide custom bronze bearing bushing solutions, including:

• UNI EN 1982 and ASTM bronze materials

• Plain bushings, flanged bushings, and grooved bushings

• Custom sizes and drawing-based manufacturing

• Applications for valves, hydraulics, and heavy machinery

Contact Us for Bronze Bearing Bushing Solutions

If you are looking for:

• Bronze Bearing Bushing Manufacturer

• ASTM / UNI Bronze Bushing Supplier

• Custom Bearing Bushing Solutions

Please contact us for technical support and competitive quotations.