Bimetal Bearings: CuSn10Pb10 bronze bushings with a steel sleeve.
Bimetal Bearings: Friction-Welded Track Roller Bimetal Bushings CuSn10Pb10
steel AlSn20Cu

Metals and Bimetal

JF-20 high-tin aluminum bearing

AlSn20Cu High-Tin Aluminum Bearings

AlSn20Cu high-tin aluminum bearings are an advanced type of bimetal bearing that combines the strength of a steel backing with the wear resistance and self-lubricating properties of a high-tin aluminum alloy lining. This combination offers several benefits, making AlSn20Cu bearings suitable for demanding applications.

Structure: Steel back with AlSn20Cu overlay Features:

  • Medium fatigue strength and load-bearing capacity
  • Good corrosion resistance
  • Excellent sliding performance
  • A new product designed to replace bimetallic bearings material

Applications:

  • Bushings for medium and small power internal combustion engines
  • Train engines
  • Air compressors
  • This product serves as a modern alternative to traditional bimetal.

AlSn20Cu high-tin aluminum bearings offer a reliable and durable solution for applications that demand high load capacity, wear resistance, and minimal maintenance. Their unique material composition and design make them a preferred choice in many industrial and automotive applications.

steel AlSn20Cu
bimetal bearing

Bimetal Bearing

Technical Parameters:

The sliding layer can be machined to include lubricating grooves and/or grease indents. It is made of an aluminum-tin alloy suitable for hydrodynamic applications, bonded to a steel backing material with AlSn20Cu.

  • Alloy material: AISn20Cu
  • Maximum operating temperature: 150°C
  • Maximum load pressure: 30N/mm²
  • Alloy hardness: HB30-40

Material Composition

Steel backing: Provides the necessary strength and rigidity to support heavy loads.

AlSn20Cu lining: The aluminum alloy contains approximately 20% tin, which enhances the bearing’s wear resistance, corrosion resistance, and self-lubricating properties.

everything you need to know about AlSn20Cu Alloy Bushing

plain bushes markets3
High-tin aluminum bimetal bearings

High-tin aluminum bimetal bearings replacing bimetal alloy is a new type of bearing material, where the aluminum-steel bimetal material is its main component.

plain bushes markets1
material

This material uses a high-wear-resistant and high-mechanical-strength polymer wear-resistant layer as the surface friction layer, overcoming the problem of poor wear resistance and short lifespan of pure polytetrafluoroethylene materials.

plain bushes application4
Aluminum-steel bimetal bearing

Aluminum-steel bimetal bearing materials have medium fatigue strength and load-carrying capacity, good corrosion resistance, and better sliding performance.

plain bushes application9
Application

This material can be applied in small and medium power mechanical systems, especially in situations where lubrication and formation of oil film are difficult, such as heavy loads, low speeds, reciprocating, or swinging movements.

plain bushes application7
replacing bimetal alloy

The manufacturing method of high-tin aluminum bimetal bearings replacing bimetal alloy includes steps such as zinc alloy wire cushion layer, polymer plastic powder, sintering in the sintering furnace, cutting and shaping of the tile surface, catalyst soaking, and tin hanging in the tin groove. The advantages of this material include high wear resistance, high mechanical strength, low cost, and ease of widespread application.

plain bushes application10
quality

Compared to traditional bearing alloys (bimetal alloy) and bronze materials, high-tin aluminum bimetal bearings replacing bimetal alloy have better wear resistance, corrosion resistance, and sliding performance. Additionally, due to its lower price, it can be more widely used in mechanical systems.

JF-20 high-tin aluminum bearing

  • AlSn20Cu Alloy description: The bimetallic bushing (AlSn20Cu Alloy) is made by combining steel strips with alloy lining material. The surface lined with alloy can be machined to create oil grooves, holes, and formed indentations, tailored to various applications. It is designed for high-load, lower-speed oscillation, and rotational movements.
  • The bimetallic bushing : The bimetallic bushing (AlSn20Cu Alloy) offers mid-range fatigue strength and load-carrying capacity, along with excellent sliding characteristics. It is suitable for half-bearing applications in high-speed, lower-load internal combustion engines, air compressors, refrigerators, hypoid gearboxes, hydraulic pumps, gearboxes, and more.

  • Key Features and Benefits

    High load capacity: The steel backing and AlSn20Cu lining can withstand heavy axial and radial loads, making them suitable for high-speed and heavy-load applications.

    Excellent wear resistance: The high tin content in the aluminum alloy provides superior wear resistance, ensuring a longer service life for the bearing.

    Self-lubricating properties: The AlSn20Cu lining exhibits inherent self-lubricating characteristics, reducing the need for external lubrication and minimizing maintenance requirements.

    Corrosion resistance: The high tin content in the aluminum alloy also provides excellent corrosion resistance, allowing AlSn20Cu bearings to operate in harsh environments.

    Thermal conductivity: AlSn20Cu bearings have good thermal conductivity, which helps dissipate heat generated during operation, particularly in high-temperature applications.

  • Standard: High-tin aluminum bimetal bearings replacing bimetal alloy is a new type of bearing material, which offers advantages such as high wear resistance, high mechanical strength, low cost, and ease of widespread application. However, this material also has some drawbacks, such as potential issues related to the short lifespan of the riser and the oxidation of metal liquid during the manufacturing process. Additionally, due to its complex manufacturing method, it may require more equipment and labor hours, thereby affecting production efficiency and economic performance.
bimetal bushing