Online Supply of Plain Bearings

Exploring Plain Bearing Types: Materials, Manufacturers, and Applications offers a range of plain bearing types, including oilless bearings, cylindrical oilless bushings, flange bearings, and self-lubricating bearings. They specialize in precision self-lubricating bearing parts and produce custom bearings to meet specific application requirements. Plain bearings, also known as sleeve bearings or journal bearings, play a crucial role in various mechanical systems by facilitating relative motion between components while reducing friction and wear. From manufacturing to applications across diverse industries, plain bearings come in a multitude of types, each tailored to specific needs. In this article, we delve into the world of plain bearings, exploring their materials, manufacturers, and applications.

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Unlocking the Diversity of Plain Bearing Types: Explore Options at

Plain Bearing Manufacturers

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Among the prominent manufacturers of plain bearings is, a leading provider based in China. offers a range of custom and standard plain bearings and components, meticulously designed and crafted to meet the unique requirements of customers. Their various plain bearing types product lineup includes steel, bronze, stainless steel, or bimetal plain bearings, along with sintered metal bushings. They specialize in the design, development, manufacturing, and sale of fluid dynamic and hydrostatic plain bearings, catering to industries such as railways, mining, construction equipment, agriculture, forestry machinery, forklifts, and solar equipment.

plain bearing types bronze graphite plugged

Plain Self-Lubricating Bearing Types

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Experience smooth and maintenance-free operation with our Plain Self-Lubricating Bearing Types. Engineered with solid lubricants and a sintered bronze layer impregnated with PTFE and additives, this bearing ensures low friction and superior wear resistance. Ideal for a wide range of applications, from industrial machinery to automotive components, the plain bearing is your reliable solution for efficient and reliable performance.

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Looking for plain bearing types?

Dive into the world of plain bearing options at! Discover three main types: Radial Slide Bearings, Thrust Slide Bearings, and Self-Lubricating Bearings. Whether you need to withstand radial or axial loads, our bearings are designed to meet your specific application requirements. Visit us today for a wide selection of high-quality plain bearings!

bronze plain Radial Slide Bearings

Radial Slide Bearings:

Designed to withstand radial loads, which act perpendicular to the axis. Typically cylindrical or flat in shape, they may feature grooves to enhance lubrication properties.

Thrust Slide Bearings

Thrust Slide Bearings:

Engineered to handle axial loads, which act along the axis. These bearings help restrain axial movement and can be flat or have specialized geometries to suit specific application requirements.

Self-Lubricating Bearings

Self-Lubricating Bearings:

These bearings contain solid lubricants, allowing them to operate without external lubrication supply. They often comprise a metal backing (such as steel or bronze) with a sintered bronze layer on top, impregnated with PTFE and additives to provide low friction and wear resistance.

plain bearing types bronze graphite plugged

Choosing the Right Plain Bearing Types

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When selecting plain bearing types, considerations include the magnitude of the load the bearing will bear, the speed of motion, operating temperature, lubrication method, environmental conditions (such as exposure to corrosive media), and the feasibility of maintenance. The correct choice can significantly enhance machinery reliability and lifespan.

Plain bearings come in a variety of types and materials, each tailored to specific applications and operational requirements. Understanding these variations is crucial for selecting the most suitable bearing for a given mechanical system, ensuring optimal performance and longevity. offers a wide range of bearing sizes and types, ensuring that customers can find the right plain bearing types for their specific needs

Materials Used in Plain Bearings

Plain bearings can be fabricated from various materials, each with its own set of characteristics. Some common materials include:

  • Babbitt Metal (Tin-Based or Lead-Based): Known for good friction compatibility, conformability, and embeddability, but relatively low strength, typically used as bearing linings.
  • Copper-Based Alloys (e.g., Brass, Bronze, Lead Bronze): Offering high strength, thermal conductivity, and wear resistance, though not as conformable, embeddable, or friction-compatible as Babbitt metal.
  • Aluminum-Based Alloys: Exhibiting high compressive and fatigue strength, excellent thermal conductivity, and corrosion resistance, albeit with poorer friction compatibility, embeddability, and conformability.
  • Antifriction Cast Iron: Affordable but with inferior anti-friction properties, suitable for low-speed light-load applications.
  • Plastics (e.g., Phenolic Resin, Nylon, PTFE, Polyacetal): Featuring self-lubricating properties, low friction coefficients, and good fatigue resistance, yet lower in strength and heat resistance.
  • Rubber: Offering good embeddability and corrosion resistance, suitable for temperatures below 70°C.
  • Wood: Possessing self-lubricating properties, low cost, and good corrosion resistance, ideal for applications with stringent cleanliness requirements.
  • Carbon-Graphite: Known for excellent self-lubrication and corrosion resistance, capable of withstanding temperatures up to 400°C, though with lower strength.
  • Powdered Metal Materials: Characterized by porous structures, suitable for oil-containing bearings, providing self-lubricating properties.

Types of Plain Bearings

Plain bearings come in diverse types, each serving specific purposes:

  • Flange Bearings: Equipped with flanges for easy installation and fixation.
  • Plane Bearings: Typically referring to plain bearings with flat working surfaces.
  • Plain Bearings: The fundamental type, usually consisting of two flat surfaces separated by a lubricant layer.
  • Hydrodynamic Bearings: Relying on fluid dynamic effects to support loads, suitable for high-speed applications.
  • Spherical Bearings: Featuring spherical working surfaces, offering multidirectional freedom.
  • Flexure Bearings: Utilizing elastic elements to allow certain movements, often used in precision machinery.
  • Air Bearings: Using air as a lubricant, suitable for high-speed and high-precision applications.
  • Ball Bearings: A type of rolling bearing utilizing spherical rolling elements to reduce friction.
  • Bronze Bearings: Made from bronze materials, known for their good wear resistance and corrosion resistance.
  • Bushings: Simple bearings commonly used for low-load and low-speed applications.
  • Hydrostatic Bearings: Supporting loads through static pressure, providing very low friction and high precision.
  • Magnetic Bearings: Employing magnetic suspension to support and suspend rotating shafts, enabling contactless rotation.
  • Sliding Bearings: A broad term encompassing all types of sliding friction bearings.

Applications of Plain Bearings

The choice of plain bearing types depends on factors such as load magnitude, operating speed, temperature, lubrication method, environmental conditions (including exposure to corrosive media), and maintenance feasibility. Some common applications include:

  • Bronze Plain Bearings: Widely used in general industrial machinery, ships, automobiles, pumps, and compressors.
  • Self-Lubricating Plain Bearings: Suitable for applications requiring reduced maintenance, such as automated production lines and conveyor systems.
  • Corrosion-Resistant Plain Bearings: Particularly suitable for chemical processing, seawater applications, or other environments prone to corrosive media.
  • Sintered Bronze Plain Bearings: With their porous structure, these bearings have excellent oil retention capabilities, suitable for self-lubricating applications.
  • Bimetal Plain Bearings: Combining the advantages of two or more materials, such as bronze and steel, suitable for high-load scenarios.
  • Multi-Layer Plain Bearings: Featuring excellent self-lubricating properties, suitable for applications requiring infrequent maintenance or operating in harsh environments.
  • Cylindrical Plain Bearings: Due to their simple geometric shape, they are suitable for linear motion or low to medium loads.
  • Spherical Plain Bearings: Providing multidirectional freedom, suitable for mechanical components requiring multidirectional motion.
  • Air Bearings: Ideal for high-speed and high-precision applications, such as precision measurement equipment.
  • Magnetic Bearings: Employed in applications requiring extremely high speeds and very low friction.

Standard or customized plain bearing types solutions offers the expertise and variety to meet your specific requirements with quality and reliability.

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