Where are composite bearings used?

Bearings and Bushings for the Future: Precision and Customization: Our company, in bearing engineering with decades of experience, designs and develops high-precision self-lubricating bronze bearings & plain bushes. We offer a wide array of sliding bearings tailored to meet specific needs. Renowned for our expertise in custom bronze bushing and slide plate solutions, we provide an expansive selection of bushing metal alloys. Contact us today to benefit from unparalleled services at competitive prices.

Where are composite bearings used?

Dry Composite Bearings

Wide Range Of Industries， Self-lubricating, Low Friction

Advanced Composite Bearings

Explore Our Broad Selection of Composite Bearings，maintenance free and suitable for heavy loads!

Explore Our Broad Selection of Composite Bearings

Our extensive collection of composite bearing materials boasts diverse physical, mechanical, and chemical properties, making them increasingly popular among our global customers.

Discover the lightweight, yet robust bearing solutions designed for demanding environments. As the need for advanced composite bearing and wear materials grows, so does the necessity for innovative products. Contact us to learn how our composite materials can be tailored to meet the specific requirements of your application.

 

Plain Composite Bearings For Machinery Equipments

Your Partner For Composite Bearing Technology， Explore Our Composite Bearings

 

Discover how our range of composite bearings can enhance your equipment’s performance and meet your needs. As your one-stop solution for self-lubricating bearings, we offer comprehensive services from design through to production. With many years in the bushing and bearing industry, we are committed to advancing manufacturing productivity and innovation.

Visit us at www.bronzelube.com to learn more about our products and how we can assist in selecting the right bearing size for your application.

dry sliding bushings

Dry Sliding Bushings

composite bushings

Steel Backed Bushings

graphite plugged bushings

Metal-polymer Composite Bushings

Compact and maintenance-free

Purpose and Variability of Composite Plain Bearings

 

Composite bearings serve a widespread and essential purpose across various applications. These bearings are crafted from multiple materials, each selected for its unique properties to meet specific requirements in different environments.

Hydraulic cylinder bushings on big excavator
oilless dry sliding bushings composite bearings

Learn More COMPOSITE BEARINGS

Composite bearings, including metal-polymer bearings and bushings, are integral in a variety of sectors due to their distinct properties and benefits. Here’s a breakdown of their primary applications across different industries:

Automotive Industry:

  • Steering Yokes: Utilizing PTFE liners, composite bearings minimize friction, enhancing steering precision and maneuverability.
  • Belt Tensioners: They help maintain consistent torque and tension in engine timing belts, aiding in vibration damping.
  • Door Hinges: These bearings facilitate smooth door operations and support electrostatic painting processes.
  • Seat Mechanisms: Employed in adjustable seat pivot points, they ensure smooth movement and proper torque retention.

Industrial Machinery: Composite bearings are prevalent in:

  • Pumps and compressors
  • Conveyor systems
  • Material handling equipment
  • Packaging machinery Offering low friction, high wear resistance, and the capability to function with minimal or no lubrication.

Aerospace: Their lightweight nature and resilience under extreme conditions make composite bearings ideal for aerospace applications.

Marine Industry: Thanks to their corrosion resistance, these bearings are well-suited for marine uses, such as in propeller shafts and rudder assemblies.

Construction Equipment: In construction, composite bearings are chosen for their robust load-bearing capacity and durability.

Agricultural Machinery: These bearings are optimal for agricultural equipment, thriving in demanding environmental conditions.

Renewable Energy: In wind turbines and solar tracking systems, composite bearings are favored for their low maintenance needs and prolonged lifespan.

Medical Equipment: Certain medical devices utilize composite bearings for their cleanliness and lubrication-free operation.

Key Advantages of Composite Bearings:

  • Low Friction and Wear Resistance: Metal-polymer bearings with PTFE or POM layers offer superior tribological performance.
  • Self-Lubrication: Many types can function without additional lubrication, simplifying maintenance.
  • Corrosion Resistance: A polymer layer guards against corrosion, making them ideal for challenging environments.
  • High Load Capacity: The metallic backing enhances strength and stiffness for handling heavy loads.
  • Dimensional Stability: These bearings maintain their form under varied conditions better than some purely polymer bearings.
  • Customizability: They can be specifically engineered to meet unique requirements, such as enhanced wear resistance or capability to withstand high temperatures.

In summary, composite bearings, especially metal-polymer variants, provide a flexible solution for a broad spectrum of applications across multiple industries. Their unique blend of features makes them a preferable choice over traditional bearings, particularly in scenarios demanding low friction, reduced maintenance, and superior performance.

Explore Our Range of Self-Lubricating Bushings

Select from our extensive inventory of self-lubricating bushings, including sleeve bearings, flanged sleeve bearings, and more—all available and ready for immediate shipment.

Applications and Composition of Composite Bearings

1. Oilless Bushings (Reciprocating Motion Bushing):

  • Materials:
    • Metal composite material
    • PTFE and lead (Pb) compounds (0.01 ~ 0.03mm)
    • Copper powder layer (0.2 ~ 0.3 mm) enhances compressive strength and wear resistance.
    • High carbon steel (0.7 ~ 2.3 mm) improves load capacity and heat transfer.
    • Copper/tin plating layer enhances corrosion resistance.
  • Features:
    • Ideal for diaphragm vacuum pumps, reducing “crawling.”
    • Operates across a wide temperature range (-195°C ~ +270°C).
    • Excellent wear resistance and longevity.
    • High impact toughness, noise reduction, and vibration dampening.

2. Bronze-Based Oilless Bushings:

  • Materials:
    • Modified polyester chip (POM) and lead compound (0.3 ~ 0.5 mm) for low friction and high wear resistance.
    • Copper powder layer (0.2 ~ 0.3 mm) for enhanced load capacity and heat transfer.
    • High carbon steel (0.4 ~ 2.2 mm) improves structural integrity.
    • Copper/tin plating provides rust protection.
  • Features:
    • Suitable for low-speed, medium-load applications at normal temperatures.
    • Reduces maintenance needs and extends service life.
    • Commonly used in CNC lathes, metallurgical mining, and hydropower engineering.

3. Bimetallic Bearings:

  • Materials:
    • Wear-resistant steel pipe sleeve with a calcined cylindrical brass layer.
  • Features:
    • Suitable for high-load, low-speed motions like swinging or rotating.
    • Low friction, high wear resistance, and long service life.
    • Customizable oil grooves and tank pits for lubrication challenges.
    • Used in heavy machinery for critical structural and motion support.

These advanced materials and design choices make our bearings ideal for a range of demanding industrial applications.

Dry Bearing Composite Bushing Overview

The dry bearing composite bushing is constructed from high-quality carbon steel plate, featuring a center layer of calcined ball bronze powder and a surface layer of cold-rolled polytetrafluoroethylene (PTFE) and lead compound. This design facilitates various configurations such as reverse side rolling bearings, piston pins, and washers. The bushing is distinguished by its low friction, wear resistance, good corrosion resistance, and effective performance in diaphragm vacuum pump applications.

Key Application Characteristics:

  • Optimal Performance in Challenging Conditions: Suitable for diaphragm vacuum pump applications, this bearing manages dynamic and static friction effectively, preventing “crawling” phenomena.
  • Versatility Across Temperatures: Operates efficiently across a wide temperature range from -195°C to +270°C, ensuring durability and reliability in extreme conditions.
  • Durability and Longevity: Exhibits excellent wear resistance and longevity, reducing the need for frequent replacements.
  • Corrosion Resistance: Capable of operating in various corrosive environments, both liquid and vapor, which enhances its applicability in harsh settings.
  • Impact and Load Management: High impact toughness allows it to bear substantial stationary and dynamic loads.
  • Noise and Vibration Reduction: Helps in minimizing mechanical noise and vibrations, contributing to a more comfortable operational environment.

Applications and Industries:

The dry bearing composite bushing is extensively used in various mechanical systems, including gear oil pumps, hydraulic systems, pneumatic components, printing equipment, looms, and cigarette machines. It is also prevalent in fitness equipment, hydraulic trucks, miniature motors, automotive applications, and agricultural and forestry machinery.

Innovative Features:

  • Self-Cleaning Properties: The bushing’s self-cleaning capabilities enhance its maintenance profile, ensuring it remains free from debris and operational residues.
  • Cost-Effective and Noise-Reducing: Helps reduce operational costs and mechanical noise, contributing to a smoother operation and reduced maintenance.

Material and Design Impact:

The choice of materials and heat treatment processes significantly influences the performance, precision, and life span of the bushings. Proper material selection is critical to ensuring resistance to fatigue, minimal friction and wear, and maintaining high rotational precision and reliability. These factors are crucial in extending the contact fatigue life and overall durability of the bearings.

This advanced design and material composition make the dry bearing composite bushing an ideal choice for applications requiring reliability and efficiency under challenging operational conditions.

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Solutions For Every Industry

Searching for Dependable Bushing Solutions? viiplus Has What You Need.

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Design Guides, Materials

Bushing design, Comprehensive design manuals covering a range of self-lubricating materials used in all of viiplus’s manufacturing processes.

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Technical Guides

Manufacturing On Demand, Technical Guides For Machining Design. Discover the latest in metal alloys, materials, and design tips for manufacturing custom machined and self-lubricating bearing parts.

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Get Instant Quote

To receive your instant quote, simply upload your drawing file and choose your production process & bushing material.

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After you place your order, we will start the production process. You will receive updates when your order has completed production and is ready to be dispatched.

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We provide precision-inspected high-quality parts, packing lists and documents, and delivery tracking.

With innovative products, we are a dependable partner in enhancing the efficiency, intelligence, and sustainability of self-lubricating bearings. We produce high-precision components, bushings for powertrain and chassis applications, and various bronze and plain bearing solutions for numerous industrial uses.

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