ZCuPb30 Lead Bronze Bushings

Unlocking the Power of ZCuPb30 Lead Bronze Bushings

When it comes to reliability and longevity, ZCuPb30 Lead Bronze Bushings stand head and shoulders above the rest. Crafted with precision and engineered for excellence, these bushings are your ticket to uninterrupted performance. Here’s why you should choose them:

  • Exceptional Durability: ZCuPb30 Lead Bronze Bushings are built to last, offering unbeatable wear resistance, even under heavy loads and high-speed applications. Say goodbye to frequent replacements and maintenance woes.
  • Frictionless Operation: Experience the smoothest operations with our lead bronze bushings. Reduced friction means less heat generation, ensuring your machinery runs efficiently while extending its lifespan.
  • Corrosion Resistance: Don’t let environmental factors hold you back. Our bushings are designed to withstand harsh conditions, making them perfect for outdoor and marine applications. They’ll keep performing, no matter the elements.


Exploring the Versatility of ZCuPb30 Lead Bronze Bushings

Bronze bushings, a common type of plain bearing, are essential components in various mechanical applications. They provide low-friction and self-lubricating properties, making them ideal for reducing wear and tear in high-load, high-speed, and corrosive environments. One notable member of the bronze bushing family is ZCuPb30, a lead bronze alloy that exhibits remarkable properties for specific applications.

What Are ZCuPb30 Lead Bronze Bushings?

At first glance, ZCuPb30 lead bronze bushing might seem like simple metal components, but they are far from ordinary. These bushings are precision-engineered cylindrical sleeves made from a specific alloy known as ZCuPb30 lead bronze. This alloy consists of copper (Cu), lead (Pb), and zinc (Zn), blended in precise proportions to create a material with exceptional properties.

Composition and Properties

ZCuPb30 lead bronze bushings are known for their exceptional self-lubricating capabilities, ease of machining, and suitability for applications requiring high sliding speeds. Let’s delve into the composition of this versatile material:

Copper (Cu): The primary component of ZCuPb30, accounting for the majority of its composition.
Tin (Sn): Constituting up to 1.0% (excluding impurities), tin enhances the material’s strength and wear resistance.
Lead (Pb): Ranging from 27.0% to 33.0%, lead improves the alloy’s machinability and friction-reducing properties.
Phosphorus (P): Present in minimal amounts, not exceeding 0.08% as impurities.
Aluminum (Al): Limited to less than 0.01% as impurities.
Iron (Fe): Minimal presence, not exceeding 0.5% as impurities.
Manganese (Mn): Limited to less than 0.3% as impurities.
Silicon (Si): Present in trace amounts, not exceeding 0.02% as impurities.
Antimony (Sb): Restricted to less than 0.2% as impurities.
Arsenic (As): Minimal presence, not exceeding 0.10% as impurities.
Bismuth (Bi): Limited to less than 0.005% as impurities.
The total impurities in ZCuPb30 do not exceed 1.0%.

Mechanical Properties and Heat Treatment

The mechanical properties of ZCuPb30 lead bronze bushings make them suitable for specific applications. They are typically processed as follows:

Heat Treatment Specifications: ZCuPb30 is heated to temperatures ranging from 1200°C to 1250°C, with casting performed at temperatures between 1150°C and 1200°C.
Casting Method: This alloy is commonly produced using the metal casting method.

ZCuPb30 Lead Bronze Bushings expoter

Applications of ZCuPb30 Lead Bronze Bushing

ZCuPb30 lead bronze bushings find applications in a wide range of industries, thanks to their versatile properties. Some common applications include:

  • Automotive Industry
    In the automotive sector, ZCuPb30 lead bronze bushings are used in suspension systems, steering columns, and engine components. Their self-lubricating nature ensures minimal friction and wear, extending the lifespan of critical parts.
  •  Industrial Machinery: In industrial settings, these bushings can be found in conveyor systems, heavy machinery, and manufacturing equipment. Their ability to withstand heavy loads and provide smooth movement is invaluable.
  • Agricultural Equipment: Farm machinery relies on ZCuPb30 lead bronze bushings for durability in challenging outdoor conditions. These bushings help keep farm equipment running smoothly for extended periods.

Benefits of ZCuPb30 Lead Bronze Bushings

What sets ZCuPb30 lead bronze bushings apart from other materials? Here are some key benefits:

  • 4.1. Self-Lubrication
    The lead content in these bushings ensures they can operate without external lubrication. This reduces maintenance requirements and operational costs.
  • High Load Capacity

ZCuPb30 lead bronze bushings can handle heavy loads, making them suitable for demanding applications.

  • Wear Resistance
    The alloy’s composition enhances wear resistance, ensuring a longer service life and reducing downtime.
  • Corrosion Resistance
    Copper’s corrosion-resistant properties make these bushings ideal for use in various environmental conditions.

Copper sleeve material selection and main performance

The unique properties of ZCuPb30 lead bronze bushings make them an excellent choice for a range of applications.

Medium Load and Speed Applications: ZCuSn6Zn6Pb3 and ZCuSn5Zn5Pb5 are suitable for manufacturing bushings, gears, and worm gears operating under medium loads and speeds.

High-Stress, High-Speed, High-Temperature Applications: ZCuSn10P1, a tin-phosphor bronze, excels in high-stress and high-temperature environments, making it ideal for components subjected to strong friction, such as connecting rod bushings, gears, and worm gears.

High-Strength Applications: ZCuAl9Mn2 and ZCuAl9Fe4 aluminum bronzes boast high strength and stability, commonly used in valve bodies, worm wheels, nuts, and pipe fittings.

Heavy-Duty, Wear-Resistant Components: ZCuZn25Al6Fe3Mn3 high-strength aluminum bronze offers exceptional wear resistance, making it suitable for casting heavy machinery parts subjected to high loads.

High Load and Sliding Speed Applications: ZCuSn10P1‘s high hardness, wear resistance, and corrosion resistance are well-suited for wear-resistant components like connecting rods, bushings, bearings, gears, and worm gears.

Corrosion-Resistant Components: ZCuSn10Pb5, known for its corrosion resistance, is especially effective against dilute sulfuric acid, hydrochloric acid, and fatty acids. It is commonly used for structural materials, acid-resistant parts, and crusher bushings.

Lubricated Applications: ZCuPb10Sn10, with excellent lubricating, wear-resistant, and corrosion-resistant properties, is used in automotive bearings, internal combustion engine bi-metal bushings, and friction pads.

Self-Lubricating and Machinable Components: ZCuPb15Sn8 performs well in applications lacking lubrication, making it suitable for various applications, including copper cooling tubes for cold rolling mills and parts subjected to high impact loads and acid exposure.

Versatile, General-Purpose Components: ZCuZn38Mn2Pb2, a bronze with good mechanical properties, corrosion resistance, and machinability, is used for a wide range of structural components in industries such as shipbuilding and instrumentation.


ZCuPb30 lead bronze bushings, with their unique composition and versatile properties, find applications across various industries. Whether it’s reducing friction, withstanding high loads, or resisting corrosion, this material is a valuable choice for engineers and manufacturers seeking reliable and efficient components for their machinery and equipment. As technology continues to advance, we can expect even more innovations in the field of bronze bushings, further enhancing their performance and durability in the years to come.



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