Bottom Shell Bushing

Bottom Shell Bushing

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Bottom Shell Bushing

High lead bronze bushing, A bottom shell bushing is a common component found in crushers and similar machinery. It is a specialized type of bushing designed to be installed within the bottom shell of a crusher, serving to offer support and minimize friction during the crushing operation. A bottom shell bushing is a common component found in crushers machinery. Material: shell bushing are made of material bronze or other alloys. Our primary focus is on delivering top-notch crusher equipment and spare parts, prioritizing quality above all else.

Bronze Sleeve Bushing Bearing for Crusher Bottom Shell, Bottom Shell Bushing

The Bronze Sleeve Bushing Bearing for the bottom shell is a critical component found in crushers, including cone and gyratory crushers. It plays a pivotal role in supporting the mainshaft and absorbing the crushing forces, thereby contributing to the overall efficiency and longevity of the crusher. Regular inspection and replacement of worn bushings are essential to ensure smooth operations and extend the crusher’s lifespan. These bushings are typically crafted from bronze, an alloy primarily composed of copper with tin as the principal additive. Bronze is favored for its exceptional wear resistance, work-hardening characteristics, and durability. Particularly, cylindrical bushings made from steel bronze with a Polytetrafluoroethylene (PTFE) layer have garnered significant attention due to their unique properties, which include exceptional durability, high load-bearing capacity, and reduced friction. The steel bronze provides strength and longevity, while the PTFE layer minimizes friction, allowing for smooth and efficient operation.

Crusher Parts: Bottom Shell Bushing

The cost of a Crusher Parts Bottom Shell Bushing can vary significantly depending on its size, capabilities, and complexity. This component is crafted from a range of bronze alloys, each with distinct compositions, including copper (Cu), tin (Sn), zinc (Zn), lead (Pb), iron (Fe), aluminum (Al), manganese (Mn), phosphorus (P), and nickel (Ni). The manufacturing process involves casting, and the final product undergoes multiple tests to ensure compliance with required standards for chemical composition and mechanical properties.

In conclusion, the Bottom Shell Bushing stands as a pivotal component in crushers, with its material and manufacturing quality exerting a substantial impact on the crusher’s performance and lifespan. When selecting a Bottom Shell Bushing, it is crucial to consider the material’s properties, the manufacturer’s reputation, and the component’s compatibility with the specific crusher model.

Bronze parts crucial components in various types of machinery, particularly in crushers. 

  1. Eccentric Bushing: This is a mechanical component used in various applications to provide rotational support and reduce friction. It is typically made from bronze, a material known for its good wear resistance and self-lubricating properties. The term “eccentric” refers to the fact that the inner diameter of the bushing is not concentric, allowing for the adjustment of the relative position between two connected components when needed.
  2. Bottom Shell Bushing: This is a part of a crusher, specifically designed to fit models like the Sandvik H4000/S4000. It’s a crucial component that ensures the smooth operation of the machinery.
  3. Piston Wearing Plate

These parts are typically made from bronze due to its excellent wear resistance and self-lubricating properties, making it ideal for applications where durability and reduced friction are important. They are often manufactured using a process called centrifugal casting, which ensures a uniform and dense material structure, important for maintaining the desired mechanical properties and wear resistance.

The CuPb15Sn8 Solid Bronze Bearing Eccentric Bushing and Bottom Shell Bushing are key components used in crushers.

The Eccentric Bushing is a mechanical part that provides rotational support and reduces friction. It is made from CuPb15Sn8 solid bronze, an alloy composed of copper (Cu), lead (Pb), and tin (Sn). This alloy is known for its exceptional load-bearing capacity, friction reduction properties, and corrosion resistance, making it an ideal material for bushings used in crushers. The term “eccentric” refers to the fact that the inner diameter of the bushing is not concentric, which allows for the adjustment of the relative position between two connected components when needed.
The Bottom Shell Bushing is a specific part of a crusher. It is a cylindrical cast bronze bushing that ensures the smooth operation of the machinery. This bushing is also made from CuPb15Sn8 solid bronze, which provides excellent anti-wear performance due to its high lead content.
These parts are typically lubricated with oil or grease, and they conform to the DIN 1850 / ISO 4379 standard. They are widely used as shaft bushings, eccentric bushings, and in other applications in the mining industry, jaw crushers, cone crushers, and more.
The CuPb15Sn8 solid bronze is a remarkable material for these applications due to its outstanding bearing characteristics, corrosion resistance, and ability to reduce friction, which contributes to extended bushing lifespan and overall equipment life.

CuPb15Sn8 is a type of bearing material often referred to as a babbitt alloy. It’s used in various applications, primarily for making bearings due to its excellent friction and wear resistance properties. Here’s a breakdown of the composition:

  1. Copper (Cu): Copper is the primary component of CuPb15Sn8, making up a significant portion of the alloy. Copper provides good thermal conductivity, electrical conductivity, and corrosion resistance.
  2. Lead (Pb): Lead is added to the alloy to improve its machinability and lubrication properties. Lead helps reduce friction and wear in bearing applications. However, it’s important to note that the use of lead in certain applications may be regulated due to environmental and health concerns.
  3. Tin (Sn): Tin is another essential component of CuPb15Sn8. Tin enhances the alloy’s strength, hardness, and anti-seizing properties. It also contributes to improving the overall bearing performance.

The composition of CuPb15Sn8 can vary slightly depending on the specific manufacturer and intended application, but the general composition is around 15% lead, 8% tin, and the rest predominantly copper. This alloy is commonly used in engine bearings, bushings, and other components where low friction and excellent wear resistance are critical. It is known for its ability to withstand heavy loads and provide good performance in sliding or rotating applications. However, it’s essential to follow safety and environmental regulations when handling and disposing of materials containing lead.

High lead bronze bushings play a vital role in various industrial settings, especially within the mining and crushing sectors. They find extensive use in machinery like jaw crushers and cone crushers, serving multiple essential functions:

  1. Shaft Bushing: These bushings provide pivotal support and guidance to shafts while reducing friction between the shaft and its housing. Their presence is critical for ensuring the smooth operation of rotating shafts in machinery.
  2. Eccentric Bushing: Utilized in cone crushers, eccentric bushings derive their name from the off-center inner diameter, enabling adjustments to the cone crusher’s stroke. These components are indispensable for the proper motion and functionality of the crusher.
  3. Middle Friction Discs, Friction Thrust Washer, Upper/Lower Friction Discs: These components are incorporated into machinery to mitigate wear and tear between moving parts. Specifically designed to absorb and disperse friction in demanding applications, they enhance the longevity and efficiency of machinery.

High lead bronze alloys, such as C93200 (also known as SAE 660), are the preferred choice for these applications due to their exceptional properties. These properties include excellent wear resistance, the capacity to withstand medium loads, and superior machinability. Additionally, they exhibit tolerance to harsh operating conditions and can adapt well to irregularities, making them particularly advantageous in off-highway, earthmoving, and heavy industrial equipment.

The manufacturing of these bushings and discs typically involves processes like sand casting or centrifugal casting. These methods ensure the creation of a dense and uniform material structure, contributing significantly to their durability and performance in demanding operating conditions.

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