Need Support?
Please provide your question. We’ll find you with the best support options.
⬇️ Scroll Down Now or Contact ISK for More Bearing Information
Table of content
2. What is the Difference Between Bushings and Bearings?
Bushing bearings, also known as dry bearings or DU bearings, belong to a Bushing series, and are a type of sliding bearing known for their excellent self-lubricating properties. These bearings are composed of multiple layers, collectively providing stable and maintenance-free operation.
Typically, DU bearings consist of a steel backing, a porous bronze layer, and a polytetrafluoroethylene (PTFE) lining. The steel backing provides structural strength and support to the bearing. The porous bronze layer acts as a solid matrix, helping to retain and distribute the lubricating material evenly. Lastly, the PTFE lining possesses a low-friction surface and self-lubricating properties.
One of the key advantages of DU bushing is their self-lubricating property. The polytetrafluoroethylene (PTFE) lining acts as a solid lubricant, reducing friction and wear between the bearing and the shaft. This self-lubricating characteristic eliminates the need for external lubrication, making DU bearings suitable for applications where maintenance and lubrication are challenging.
DU bushing offer several benefits. Firstly, they have a low coefficient of friction, resulting in reduced energy consumption and improved efficiency. Secondly, they exhibit excellent wear resistance, allowing them to withstand high loads and harsh operating conditions.
In summary, bushing bearings are sliding bearings with self-lubricating properties, characterized by low friction, high wear resistance, and maintenance-free operation. With their versatile applications and stable performance, Bushing bearings are highly favored in industries that prioritize efficiency, durability, and reduced maintenance requirements.
If you want to know the difference between bushing and bearing, you should first understand What the bearings are.
According to the rotational motion and the linear motion, they are mainly divided into Ball Bearings, Needle Roller Bearings, Rod End Bearings, Thrust Bearings, Bushing Bearings, and Self-aligning roller bearings, etc.
The shape and clearance or interference fit with mating components of each bearing are designed to suit its specific application.
Bearing shapes can vary widely, and features such as flanges, balls, and holes can be customized to improve the overall performance of the application.
Comparison of Self-Lubricating (Dry) Bearings with Ball Bearings and Roller Bearings
Self-lubricating (dry) bearings exhibit a sliding effect and are typically self-lubricating to ensure smooth and continuous operation. In sleeve or sliding bearings, the shaft and bearing move in opposite directions on a sliding surface. In contrast, rolling bearings have two parts in close proximity—the inner ring and the outer ring—separated by rolling elements. This design results in significantly less friction than in self-lubricating (dry) bearings.
In summary, while all bushing is always a bearing, but not all bearings are bushings.
These bushings have a solid, one-piece construction with a plain cylindrical shape. They are the simplest and most common type of bearing bushings.
.jpg)
As the name suggests, split sleeve bushings consist of two halves that can be easily assembled or disassembled. They are convenient for applications where installation space is limited or when the shaft cannot be removed.
Flanged bushings have an extended flange on one end, providing axial stability and preventing axial movement of the bushing within the housing.
Thrust washers are flat, washer-like bearing bushings designed to support axial loads.
Due to their exceptional stability and self-lubricating properties, DU bushings are widely used in various industrial sectors.
DU bearings are commonly used in fitness equipment components such as treadmill rollers and drive chain systems. If bearing-related issues are detected early, replacing them with bushing bearings can prevent component damage. The excellent self-lubricating properties of DU bearings significantly reduce maintenance costs for fitness equipment.
DU bearings are also frequently employed in automotive suspension systems, including suspension arms, support brackets, and linkages. The outstanding self-lubricating properties enable DU bearings to achieve long-lasting stable operation in automotive environments.
DU bearings find extensive use in equipment such as pneumatic cylinders and fans. These devices often operate under high pressure and high temperature conditions, and the wear resistance and self-lubricating properties of DU bushing allow them to withstand extreme working conditions.
DU bearings are widely applied in agricultural machinery and equipment. For example, they are used in harvesting machine knife bearings, seeders' wheel bearings, and more. These applications often require bearings with excellent wear resistance, and DU bushing can provide stable operation while reducing maintenance requirements.
Difference Between Bushing and Bearing: Major Differences 
In conclusion, bushing bearings have extensive applications in fitness equipment, automotive, industrial, and agricultural sectors. Their self-lubricating, wear-resistant, and stable operation characteristics make them the preferred bearing solution for achieving efficiency, durability, and reduced maintenance requirements in various industrial applications.
Why is ISK BEARINGS frequently chosen as the specified bearing brand by major international companies?
Please provide your question. We’ll find you with the best support options.