Discover the Types of Oilless Bushings for Optimal Performance

Our types of oilless bushings are made from high-quality materials and designed to withstand extreme temperatures, pressure, and friction. They are easy to install and require minimal maintenance, making them an ideal solution for a wide range of industrial applications. Our bushings offer reliable and long-lasting performance, ensuring your machinery operates at optimal efficiency.

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What Is Oilless Bushing?

In the world of mechanical engineering, bushings are essential components that reduce friction between moving parts. With the increasing demand for maintenance-free and eco-friendly solutions, oilless bushings have gained popularity in various industries.

An oilless bushing, also known as a self-lubricating bushing, is a type of bearing that does not require external lubrication. they are also known for their low coefficient of friction, high wear resistance, and long service life.

Materials For Oilless Bushings

Oilless bushings are typically made from three types of materials:

  1. Metal-polymer composites
  2. Solid polymer
  3. Metal (e.g., bronze, iron)

These materials possess self-lubricating properties, which help reduce friction and wear without the need for additional lubrication.

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C83600 bearing bronze

Types of Oilless Bushings

  • Metal-polymer composite bushings consist of a metal backing with a layer of polymer on the sliding surface. The polymer contains solid lubricant particles, which provide a low friction coefficient and wear resistance. These bushings are lightweight, compact, and suitable for applications with high loads and low speeds.
  • Solid polymer bushings are made entirely of a self-lubricating polymer material. They offer excellent wear resistance, low friction, and are resistant to chemicals and corrosion. These bushings are ideal for applications that require minimal maintenance and operate in harsh environments.
  • Bi-metal bushings have a steel or bronze backing and a sintered layer of a low-friction alloy, such as lead-bronze or aluminum-tin. These bushings offer high load capacity and excellent wear resistance. They are suitable for applications with moderate to high speeds and loads.
  • Wrapped bronze bushings are made of a bronze strip with diamond-shaped lubrication pockets or holes filled with solid lubricant. These bushings are known for their high load capacity, good wear resistance, and low maintenance requirements. They are often used in agricultural and construction equipment.

Key Applications Of Oilless Bushings

Oilless bushings are commonly used in a variety of industries, including:

  • Automotive Industry: Suspension systems, steering systems, and transmissions
  • Aerospace Industry: Landing gear components, actuators, and flight control systems
  • Industrial Machinery: Pumps, compressors, and textile machinery

“We offer sleeve, flanged, thrust, and linear bushings. Each type is designed to meet specific performance requirements and is suitable for different loads and speeds.”

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Your Bushing Expert flanged bushing

Importance of Oilless Bushings in Machinery

Oil-free bushings present numerous advantages over traditional lubricated counterparts, including their simplistic structure, ability to withstand extreme temperatures, and frequent start-stop operations. They find ideal applications across various industries, spanning automotive, engineering, 3C electronics, and healthcare, enhancing the durability and reliability of automobiles, industrial robots, wind turbines, solar tracking systems, and more.

Widely utilized in aerospace, automotive, construction, medical, and manufacturing sectors, these bushings offer multifaceted benefits. By eliminating the need for external lubrication, they reduce maintenance costs, save time, address environmental concerns, and maintain cleanliness in work areas. Moreover, oil-free bushings operate silently, mitigating noise pollution within the working environment.

Materials For Oilless Bushings

Various types of oil-free bushings are available, including bronze, brass, plastic, steel, and porous metal materials. Each type offers unique properties suited to specific applications. For example, bronze bushings are ideal for heavy loads at moderate speeds or light loads at high speeds, while brass bushings excel in low-load, high-speed applications. Plastic bushings provide excellent chemical resistance, low friction coefficients, and good wear resistance. Steel bearings withstand high loads and have prolonged service life in high-speed, high-load applications. Porous metal materials, produced through powder metallurgy techniques, boast excellent lubricating properties.

Oil-free bushings offer several advantages over traditional lubricated counterparts. They eliminate the need for external lubrication, reducing maintenance requirements and mitigating risks associated with inadequate lubrication. Additionally, they eliminate the need for continuous lubrication devices, reducing installation and operational costs. Environmentally friendly, these bushings eliminate the need for oil disposal and perform exceptionally well in extreme temperature ranges from -200°C to 600°C. Moreover, they reduce material requirements, as lower shaft hardness requirements diminish the need for quenching, streamlining the production of associated components.

Your Bushing Expert straight oilless bearing
grooved bronze bushings

Types of Oilless Bushings

When choosing oil-free bushings, consider these factors for best results:

  1. Material: Determines load capacity, temperature resistance, and durability. Common materials are bronze, brass, and metal alloys like C95400, C93200, and C86300.
  2. Design: Ensure it suits your application. Straight bushings for linear movements, flange bushings for secure placement. Inner and outer diameters must match the mating shaft and housing.
  3. Load Capacity: Crucial for withstanding applied forces. High-load capacity bushings are made of robust materials with thicker walls.
  4. Temperature Range: Critical for extreme conditions. Some bushings operate from -200°C to 600°C.
  5. Lubrication: Self-lubricating, but type affects performance. For instance, graphite-plugged bushings are suitable for high-temperature and heavy-load applications.
  6. Maintenance: Consider maintenance needs. Some require no maintenance, while others need occasional cleaning or lubricant replacement.
  7. Cost: Initial cost vs. long-term benefits. Higher initial costs may offer longer service life and lower maintenance expenses.

Consider these factors to choose the right oil-free bushing for your application, ensuring top performance and durability.