
Bearings are mechanical components designed to facilitate movement by reducing friction between surfaces. There are several types of bearings, including sleeve bearings, ball bearings, rolling bearings, and sliding bearings.
Sleeve bearings, also known as plain bearings, are cylindrical and smooth, resembling the shape of a sleeve. They are sometimes referred to as sliding bearings because they enable sliding motion. In some contexts, the terms bushing or sleeve bushing are also used to refer to the same component.
The key difference between sleeve bearings and ball bearings lies in their construction and function. While ball bearings use rolling elements to reduce friction, sleeve bearings rely on a smooth surface to allow for sliding motion.
Materials
Sleeve bearings can be made from a variety of materials, such as hardened steel, stainless steel, syntenthic, brass, and bronze. The material choice depends on the specific application, environment, and load requirements. Each material offers its unique benefits:
Hardened Steel
Hardened steel sleeve bearings are made by heating steel to high temperatures and rapidly cooling it, a process called quenching. This increases hardness and wear resistance, making them ideal for high-load applications. Additionally, case-hardened options feature a carburized surface that enhances durability while maintaining a softer core, suitable for applications requiring strong surface performance.
Stainless Steel
Offers superior corrosion resistance, making it ideal for use in corrosive environments, such as those with high salinity or exposure to chemicals.

Synthetic Materials
Lightweight, corrosion-resistant, and suitable for applications with lower loads. This category includes plastics and other engineered materials designed for specific performance requirements.
Brass/Bronze
Provides self-lubrication properties and high durability under moderate loads.
Types of Sleeve Bearings
There are several types of sleeve bearings designed to meet specific needs. These include plain sleeve bearings, flanged sleeve bearings, grooved sleeve bearings, and split sleeve bearings.
Plain Sleeve Bearings
Plain sleeve bearings are the simplest form of sleeve bearings, featuring a smooth cylindrical shape. These bearings are used in a wide range of applications where low friction and ease of movement are essential. The simplicity of design makes them cost-effective and versatile for various machinery.
Flanged Sleeve Bearings
Flanged sleeve bearings have a flange at one or both ends of the bearing, which helps keep the bearing in place. This added flange allows for easy installation in housings without requiring additional components like retaining rings. They are ideal for applications where axial alignment is crucial, such as in motors or pumps.
Grooved Sleeve Bearings
Grooved sleeve bearings feature grooves along the surface of the bearing, which help with lubrication distribution and reduce friction. These grooves help maintain an even layer of lubricant between the bearing and shaft, improving efficiency and lifespan, especially in applications with high-speed movement or heavy loads.

Split Sleeve Bearings
Split sleeve bearings are divided into two halves, which can be easily installed or removed without disassembling the equipment. This feature is particularly beneficial for applications where maintenance is frequent or where space is limited. They are commonly used in larger machinery or engines, where ease of installation and replacement is critical.
Applications
Sleeve bearings are widely used across various industries due to their versatility and efficiency. They can be used in a wide range of applications, including:
- Machinery: Ensure low friction and reliable motion in industrial machines.
- Construction Equipment: Used in lifting equipment, cylindrical hydraulic systems, and other heavy-duty machinery for durability and efficiency.
- Agricultural Equipment: Reduce wear and enhance the longevity of farming machinery, even in demanding environments.
- Automotive Components: Integral to engines, transmissions, and other systems requiring smooth operation.
Catalog
Request the Sibo catalog in PDF for sleeve bearings. Our catalog offers a comprehensive range of options suitable for various industries, including sliding bearings for hydraulic cylinders, drilling machines, excavators, and other equipment.
Custom
For custom designs, feasibility analysis, and specific machining requests for sleeeve bearings, feel free to contact us. All manufacturing is carried out in our facilities, including testing and research studies.
You can reach us for information on processes and materials via email at sales@sibo.eu. Our technical department will assist you at every stage.