ZCuPb17Sn4Zn4 Lead Bronze Bushing

Unlock the Power of ZCuPb17Sn4Zn4 Lead Bronze Bushings

When it comes to ensuring the longevity and reliability of your industrial machinery, there’s no room for compromise. Our ZCuPb17Sn4Zn4 Lead Bronze Bushing is your ultimate solution. Engineered to perfection, this bronze bushing is the choice of professionals across industries. Here’s why:

Exceptional Durability: Crafted from high-quality materials, our ZCuPb17Sn4Zn4 bronze bushing is designed to withstand heavy loads, extreme temperatures, and abrasive environments. It’s your insurance against unexpected breakdowns.

  • Smooth Operation: Experience a frictionless and smooth operation of your machinery. The ZCuPb17Sn4Zn4 alloy minimizes wear and tear, reducing the need for frequent maintenance and replacements.
  • Precision Engineering: Each bushing is meticulously crafted to meet the highest industry standards. You can trust it to provide consistent performance day in and day out.
  • Invest in the ZCuPb17Sn4Zn4 Lead Bronze Bushing, and you’re investing in the future of your business. Say goodbye to costly downtime and hello to a seamless workflow. Choose durability; choose success.


Exploring the ZCuPb17Sn4Zn4 Lead Bronze Bushing: A Durable and Self-Lubricating Alloy

Lead bronze alloys have a long history of being employed in various industrial applications due to their exceptional wear resistance and self-lubricating properties. Among these alloys, ZCuPb17Sn4Zn4, commonly referred to as 17-4-4 lead bronze, stands out for its unique characteristics.

Key Features of ZCuPb17Sn4Zn4 Lead Bronze:

  1. Outstanding Wear Resistance: ZCuPb17Sn4Zn4 exhibits exceptional wear resistance, making it ideal for applications that require prolonged endurance against abrasion.
  2. Self-Lubricating Properties: This alloy possesses good self-lubricating capabilities, reducing friction losses and making it suitable for components like bearings that require lubrication.
  3. Ease of Machinability: ZCuPb17Sn4Zn4 is easy to machine, making it a preferred choice for manufacturing various cutting tools and equipment.
  4. Challenging Casting Characteristics: Despite its outstanding wear resistance and self-lubricating properties, this alloy has relatively poor casting characteristics.

Characteristics of Lead Bronze Bushings:

  • Composition: Lead bronze bushings are typically composed of copper, tin, lead, and other elements to enhance properties like wear resistance, load-bearing capacity, and thermal conductivity.
  • Durability: Lead bronze is chosen for its durability and low friction properties, making it suitable for applications where reliability and longevity are crucial.
  • Applications: These bushings find use in machinery, automotive components, and other industrial settings where rotational support with reduced friction is required.

Specific Alloys Used:

  1. C89835 Bismuth Tin Bronze (C932 Replacement): A lead-free bronze alloy used as an alternative to traditional leaded bronzes like C93200. This alloy offers similar properties without the use of lead.
  2. ZCuPb30 Lead Bronze: A precision-engineered alloy consisting of copper and lead used to manufacture cylindrical sleeves for various applications requiring low friction and wear resistance.

Lead bronze bushings play a vital role in reducing friction and wear in rotating applications, contributing to the efficiency and longevity of machinery and equipment across different industries. The inclusion of lead in the alloy enhances the lubricating properties of these bushings, making them a popular choice for applications where smooth operation and extended service life are essential.

ZCuPb17Sn4Zn4 Lead Bronze Bushing

Chemical Composition:

The primary components of ZCuPb17Sn4Zn4 lead bronze are as follows:

  • Copper (Cu): Remainder
  • Tin (Sn): 3.5-5.0%
  • Zinc (Zn): 2.0-6.0%
  • Lead (Pb): 14.0-20.0%
  • Phosphorus (P): ≤0.05% (impurity)
  • Aluminum (Al): ≤0.05% (impurity)
  • Iron (Fe): ≤0.4% (impurity)
  • Silicon (Si): ≤0.02% (impurity)
  • Antimony (Sb): ≤0.3% (impurity)

(Note: Total impurities ≤0.75%)

Performance Data:

The performance data for ZCuPb17Sn4Zn4 lead bronze are as follows:

  • Tensile Strength (σb): ≥175 MPa
  • Elongation (δ5): ≥7%
  • Hardness: ≥590 HB

Applications Of Zcupb17sn4zn4 Lead Bronze Bushing:

ZCuPb17Sn4Zn4 lead bronze finds widespread use in the following fields:

  1. Wear-Resistant Components: Due to its exceptional wear resistance, it is suitable for manufacturing parts that need to endure prolonged abrasion, such as bearings and gears.
  2. Self-Lubricating Bearings: Its self-lubricating properties make it suitable for producing long-lasting bearings, reducing the need for external lubrication.
  3. Cutting Tools: Its excellent machinability makes it a preferred material for manufacturing various cutting tools and equipment like planer blades and gear cutters.

Comparison with ZCuPb15Sn8 (15-8) lead bronze:

Compared to ZCuPb15Sn8 (15-8) lead bronze, ZCuPb17Sn4Zn4 (17-4-4) lead bronze has a higher zinc content and lower lead content. This makes it more advantageous in terms of wear resistance and self-lubricating properties, making it suitable for applications requiring higher wear resistance. However, it is important to note that its casting characteristics are relatively poor, demanding a higher level of manufacturing complexity.

Heat Treatment Specifications: Heating temperature: 1180-1220°C; Casting temperature: 1150-1200°C.

Casting Method: Sand casting is commonly used.

In conclusion, ZCuPb17Sn4Zn4 lead bronze, known for its wear resistance and self-lubricating properties, is a valuable material in industries where durability and reduced friction are crucial. Its chemical composition and performance data make it a reliable choice for manufacturing components like bearings, cutting tools, and various mechanical parts. Despite its casting challenges, its exceptional properties continue to drive its use in diverse industrial applications.


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