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Custom ODM/OEM Self-Lubricating Copper Alloy Bearings

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Focus on the research and development and production of various new self-lubricating bearings such as Self-Lubricating Copper Alloy Bearings.
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Self-Lubricating Copper Alloy Bearings Manufacturers

Shuangnuo Bearing specializes in manufacturing self-lubricating copper alloy products using centrifugal, continuous, and metal mold casting. Its main products include brass, aluminum bronze, and tin bronze, produced to national standards, which are further processed into solid inlaid self-lubricating bearings. The company also utilizes sintering technology to produce bimetallic products. With nearly a decade of experience, Shuangnuo focuses on R&D and production of innovative self-lubricating bearings.

Zhejiang Shuangnuo Bearing Technology Co., Ltd. Zhejiang Shuangnuo Bearing Technology Co., Ltd.
Zhejiang Shuangnuo Bearing Technology Co., Ltd.
Zhejiang Shuangnuo Bearing Technology Co., Ltd. is China Self-Lubricating Copper Alloy Bearings Manufacturers and Custom ODM/OEM Self-Lubricating Copper Alloy Bearings Factory, we are a manufacturer specializing in producing various self-lubricating copper alloy products using centrifugal casting, continuous casting, metal mold casting, and other processes. Its main products include brass, aluminum bronze, tin bronze, and others produced according to national standard grades. It processes and produces various solid inlaid self-lubricating bearing products on this basis . At the same time, it uses sintering technology to produce bimetallic products and many other types of products. Since its establishment nearly 10 years ago, the company has focused on the research development, and production of various new self-lubricating bearings.

In the process of product production, our company has always insisted on independent casting production of raw materials to ensure the quality of products from the source; during the casting process, the whole process is monitored, and the finished product is tested by spectrometer three times before, in and after the furnace to confirm the material composition of the product. The national testing agency is regularly commissioned to test the material composition and mechanical properties of the product, and authoritative test reports can be provided to customers in need; the company implements integrated production from material to finished product processing and has more than 80 sets of advanced CNC machine tools, CNC lathes, machining centers, and other major equipment. The strong production capacity ensures that the material production is organized for customers for the first time, shortening the production cycle.
  • 0+
    Establishment

    Founded in 2014, Shuangnuo has 10 years of experience in the industry.

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    Advanced Equipment

    Strong production capacity ensures that we can organize material production for customers as soon as possible and shorten the production cycle.

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    Happy Clients

    There are more than 5,000 cooperative customers around the world.

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Self-Lubricating Copper Alloy Bearings Industry knowledge

Strategies to Improve the Service Life of Self-Lubricating Copper Alloy Bearings

Introduction

Self-lubricating copper alloy bearings are widely used in industrial machinery, automotive, and aerospace applications. Their service life is affected by multiple factors, including material, manufacturing process, design, and maintenance. Combining the technological advantages of Zhejiang Shuangnuo Bearing Technology Co., Ltd., the service life of bearings can be enhanced through the following strategies.

1. Material Selection and Optimization

Zhejiang Shuangnuo provides various copper alloy materials, including Brass, Aluminum Bronze, Tin Bronze, as well as solid self-lubricating inserts and bimetallic structures.

  • Brass: Suitable for medium loads, moderate wear resistance, used as a baseline reference.
  • Aluminum Bronze: High strength and wear resistance, suitable for heavy load and high-temperature applications.
  • Tin Bronze: Excellent self-lubrication, suitable for low-speed or insufficient lubrication conditions.
  • Self-lubricating inserts: Reduce friction coefficient, significantly extending bearing life.
  • Bimetallic structures: Provide surface self-lubrication and base load support for overall performance enhancement.

2. Manufacturing Process and Quality Control

  • Independent Casting: Zhejiang Shuangnuo insists on self-casting raw materials to ensure uniformity and stability.
  • Casting Methods:
    • Centrifugal Casting: High-precision round bearings
    • Continuous Casting: Suitable for large-scale production
    • Metal Mold Casting: High surface finish, reducing post-processing
  • Full-Process Quality Control: Element composition is monitored with spectrometer before, during, and after melting; mechanical properties are regularly verified by national testing agencies.
  • Machining Capability: Over 80 CNC machines, lathes, and machining centers. Surface roughness can reach Rz ≤ 0.8 μm, reducing friction and wear.

3. Design Optimization Strategies

  • Clearance Design: Adjust bearing clearance based on load and speed to maintain complete lubrication film.
    Speed Recommended Clearance
    Below 1000 rpm 0.03–0.05 mm
    1000–3000 rpm 0.02–0.03 mm
    High load conditions Increase by 0.01–0.02 mm
  • Load Distribution Optimization: Use thick-wall or convex contact surfaces to improve bearing fatigue life.
  • Lubrication Channel Design: Micro-channels can assist lubrication even in self-lubricating bearings, increasing service life by 15%-30%.

4. Installation and Maintenance Strategies

  • Installation:
    • Avoid dry friction at startup by applying a thin layer of grease on shaft or bearing surface
    • Ensure coaxiality error ≤ 0.05 mm to prevent local wear
  • Routine Maintenance:
    • Regularly check operating temperature, vibration, and noise
    • Supplement external lubricant under high temperature or heavy load conditions
    • Replace bearings when wear exceeds 10%
  • Environmental Protection: Prevent dust and debris from entering the bearing to avoid abrasive wear

5. Unique Advantages of Zhejiang Shuangnuo

  • Customized Solutions: Tailored design based on customer conditions, including materials, structure, dimensions, and lubrication solutions.
  • Short Production Cycle: Self-cast raw materials combined with CNC processing enable rapid delivery of high-precision bearings.
  • Technical Reliability: 10 years of R&D experience, multiple quality checks, authoritative certification.
  • Comprehensive Life Extension: By combining material selection, process optimization, design strategies, and maintenance, the overall bearing life can be extended by 30%-70%, significantly reducing downtime costs.

6. Life Improvement Comparison Table for Self-Lubricating Copper Alloy Bearings

Category Specific Strategy Description Expected Life Improvement
Material Selection Brass Medium load, moderate wear resistance Baseline (1×)
Aluminum Bronze High strength, wear-resistant, suitable for heavy load and high temperature +30%-40%
Tin Bronze Excellent self-lubrication, suitable for low-speed or insufficient lubrication +20%-30%
Self-lubricating inserts Reduce friction coefficient, improve wear resistance +20%-50%
Bimetallic structures Surface lubrication, base load support +25%-45%
Manufacturing Process Centrifugal Casting High-precision bearings +15%-25%
Continuous Casting Large-scale production, reduced defects +10%-20%
Metal Mold Casting High surface finish, reduces post-processing +10%-15%
CNC Precision Machining Surface roughness Rz ≤ 0.8 μm +10%-20%
Design Optimization Clearance Optimization Prevent dry friction, maintain lubrication film +10%-20%
Load Distribution Optimization Thick-wall/convex design enhances load support +15%-25%
Lubrication Channel Design Assists lubrication, extends life +15%-30%
Installation & Maintenance Precision Installation Coaxiality error ≤ 0.05 mm +5%-10%
Routine Checks & Lubrication Prevent overheating and wear +10%-15%
Dust Protection Reduce abrasive wear +5%-10%
Comprehensive Strategy Material + Process + Design + Maintenance Zhejiang Shuangnuo Customized Solution +30%-70%