Introduction to Sintered Bearings
Sintered bearings, also known as powder metal bearings or self-lubricating bearings, are a type of bearing made using a process called powder metallurgy. This process involves pressing fine metal powders into a desired shape and then sintering (heating without melting) the compacted powder to bond the particles together. The resulting material is porous, which allows the bearing to retain lubricants, making them self-lubricating.
Types of Sintered Bearings
- Sintered Bronze Bearings:
- Made from porous bronze or iron, these bearings are typically oil-impregnated and are designed for high sliding velocities. They are maintenance-free and suitable for applications in packaging machines, automotive components, and household appliances.
- Self-Lubricating Sintered Bearings:
- These bearings contain a lubricant oil that is stored in their porous structure, ensuring continuous lubrication without the need for external sources. They can operate under hydrodynamic conditions, providing low friction and high reliability. Common applications include automotive parts like wiper motors and industrial machinery.
Main MATERIALS used for sintered bearings
JHMIM is able to provide customers with sintered bearings of various materials to meet the needs of different application scenarios. Our sintered-bearing products can be widely used in many fields such as automobiles, industrial equipment, electrical appliances, aerospace, etc. The following are the sintered bearing materials we can provide and their specific examples:
1. Bronze
Bronze sintered bearings are one of the main products we provide. It has excellent self-lubricating properties and wear resistance, suitable for medium load and speed application scenarios.
2. Iron-based Alloys
The iron-based alloy sintered bearings we provide have high strength and good wear resistance, which are very suitable for high load and low speed applications, especially in the fields of automobiles and industrial machinery.
3. Copper-based Alloys
Copper-based alloy sintered bearings have excellent thermal conductivity and self-lubrication, and are suitable for high-load and medium-speed applications.
4. Aluminum Alloys
Aluminum alloy sintered bearings have light weight and excellent corrosion resistance, and are particularly suitable for applications requiring lightweight design.
5. Stainless Steel
The stainless steel sintered bearings we offer have high corrosion resistance and good mechanical strength, and are suitable for environments that require high hygiene standards and corrosion resistance, such as food processing and chemical industries.
6. Nickel-based Alloys
Nickel-based alloy sintered bearings are suitable for high temperature and high corrosion environments under extreme conditions, such as aerospace and chemical equipment.
7. Ceramic Materials
JHMIM can also provide high-performance ceramic material sintered bearings, which are very suitable for use in occasions requiring extremely high wear resistance and high temperature stability.
Advantages of Sintered Bearings？
- Self-Lubrication: The porous nature allows for oil retention, which reduces friction and wear, making them ideal for maintenance-free applications.
- Durability: Sintered bearings typically have a longer service life compared to polymer bearings, often lasting three times longer than plastic and ten times longer than milled metal.
- High Performance: They can withstand high loads and speeds, making them suitable for demanding applications.
- Cost-Effectiveness: While more expensive to produce than some alternatives, their longevity and reduced maintenance needs can lead to lower overall costs in the long term.
JHMIM provides sintered bearings in a variety of materials, including bronze, iron-based alloys, copper-based alloys, aluminum alloys, stainless steel, nickel-based alloys and ceramic materials to meet the needs of different customers. With advanced sintering technology and rich material selection, we can provide customized solutions according to the specific needs of customers to ensure product performance and reliability.