Self Lubricating Bushing

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Myway Self Lubricating Bushing
Meeting the Lubrication Needs of All Your Transmission Parts

Are you looking for a metal-polymer bearings with high wear resistance and low friction? Then Myway will fully meet your needs, while providing satisfactory performance and favorable price.

Excellent mechanical properties and high load bearing capacity
Self-lubricating properties avoid the use of external lubricants
Multiple materials to choose: bronze, carbon steel, stainless steel, etc.

What is Self Lubricating Bushing?

Myway self-lubricating bushing, also called metal polymer bushing, has a 3-layer composite structure: outer metal backing, sintered bronze layer in the middle and inner PTFE layer. Therefore, it combines high mechanical strength of metal and wear resistance of plastic.

The metal polymer bushing achieves complete grease-free dry operation, ensuring excellent lubrication performance while reducing maintenance frequency by more than 50%. Its temperature range covers -200℃ to 288℃ and remains stable in extreme environments such as high temperature ovens and chemical reactors.

Thanks to the high strength, low friction, maintenance-free and high temperature and corrosion resistance of the self-lubricating bushing, it is widely used in various application fields such as automobile manufacturing, engineering machinery and chemical equipment, etc.

Types of Self Lubricating Bushing by Shapes

Self Lubricating Sleeve Bushings

Standard cylindrical, wall thickness 0.3mm to 5mm. Compact structure, 30%-50% lighter than flange sleeve. Maintenance free operation mode, no need to oil.

Steel Flanged Bushing

Flange design can withstand both radial and axial loads. Convenient installation due to the bolt holes on the flange. Saving 20%~30% axial space compared to other bushings.

PTFE Thrust Washer

Both sides are filled with uniform and high-quality PTFE. Metal backing provides extremely high load capacity. Passed ASTM ASTM E595/ECSS-Q-ST-70-02C test.

Self Lubricating Bushing Material Types

Steel Backed PTFE Bushing

Electroplating treatment enhances corrosion resistance. Suitable for dry, closed and lubricant-free environments. Resistant to strong acids&alkalis and organic solvents.

PTFE Bronze Bushing

The capacity of bronze alloy reaches 140~250N/mm². Performing well in seawater, acid and alkali environment. Tolerant to 800℃ high temperature and heavy load.

Stainless Steel PTFE Bushing

Premium stainless steel 304 or 316 forms outer layer. Exceptional corrosion resistance in harsh environments. Engineered to withstands high stress without breaking.

Aluminum Polymer Composite Bushing

Lightweight by the density of aluminum alloy is 1/3 of steel. Good wear resistance with the friction coefficient of 0.05. High tensile strength, making it suitable for the aerospace field.

Lead-free Self Lubricating Bearing

Using lead-free and non-hazardous materials. No compounds like toluene or aluminum nitrate in the production process. Eliminating or reducing the need for these external low-viscosity lubricants.

Self Lubricating Bushing with Different Performance

Metal-polymer Low Friction
Plain Bearings

Good wear resistance over a wide range of loads, speeds and temperatures. Material is lead-free, compliant with ELV, WEEE and RoHS specifications. Suitable for linear, oscillating and rotary motion in lubricated applications.

Metal-polymer Anti-friction
Plain Bearings

Structural composition: steel back + porous bronze sintering + PTFE + lead. The friction coefficient is 0.002-0.12, and the maximum sliding speed can reach 5m/s. Tested according to ASTM E595/ECSS-Q-ST-70-02C standard.

Metal-polymer Bronze Backed
PTFE Plain Bearings

Bronze backing performs well in wet or corrosive environments. Complies with DIN EN 1797 and ISO 21010 and civil engineering structure support standard EN 1337-2. Dry running, good lubricity, no noise.

Structure of Self Lubricating Bushing

The outermost layer of Myway self-lubricating bearing is metal, and there are many materials to choose from, such as carbon steel, bronze, stainless steel 304/316, aluminum, etc., which provide outstanding wear resistance and solid support, effectively extending the service life of bushing.

The bronze powder is sintered into dense structure in high-pressure environment of 800℃, which can firmly connect the metal layer and the PTFE lubricating layer to prevent delamination. With thickness of 0.1-0.3mm and porosity of 25%-40%, it can store solid lubricants and dissipate heat quickly.

The lubricating layer is composed of a mixture of high-quality PTFE and lead with thickness of 0.01-0.03 mm, greatly reduce the noise during mechanical operation. Its low friction coefficient (0.03-0.2μ) enables it to achieve long-term operation without external lubrication.

Features of Self Lubricating Bushing

Self-lubricity without oil holes and external lubrication
Maintenance-free feature reduces machinery operating costs
Having more cost-effective thanks to its long service life
High-quality PTFE liner with low friction surface and self-lubricating properties
Embedded solid lubricant ensures smooth operation with minimal friction
High load capacity, even in harsh environments with high temperature and dust
Corrosion-resistant metal materials, suitable for use in acidic or humid environments
Various materials to choose from: steel, copper, stainless steel 304/316, etc.
Simple installation method, easily interchangeable with traditional bushings.
Low friction coefficient reduces energy consumption and improves lubrication efficiency

Applications of Self Lubricating Bushing

Automobile

Self lubricating bushings reduce friction, noise and improve the efficiency and stability of a automobile's engine, suspension and steering systems.

Truck

The high mechanical strength of self lubricating bushings enables them to adapt to the characteristics of heavy trucks and long running, and their maintenance-free properties greatly reduce the maintenance costs of vehicles in the process of operation.

Tractor

Self lubricating bushings are often used in the connection parts of the power output shaft of tractors and agricultural machines, so that they can efficiently drive various agricultural machines to carry out farming, harvesting and other operations.

Dump Truck

Similar to trucks, the self lubricating bushings in the suspension and steering systems of dump trucks can withstand various forces during heavy loads and driving, ensuring the stability and controllability of the vehicle.

Excavator

The boom, dipper stick, bucket, hydraulic cylinder and other parts of the excavator are inseparable from the bushings. The use of self lubricating bushing can maintain good lubrication, reduce wear and prolong the service life of the parts.

Crane

Self lubricating bushings are widely used in the telescoping system of crane boom, rotating and lifting mechanism, ensuring the boom can be extended and retracted smoothly and accurately, and improving the working efficiency and safety of the crane.

Bulldozer

Thanks to its robust structure and flexible shape, the self lubricating bushings can adapt to the bulldozer's walking in complex terrain, enabling the bulldozer to operate continuously and stably in harsh working conditions.

Loader

The self lubricating bushings can withstand the great pressure and impact force of the loader in the loading and unloading process, and maintain good lubrication performance and reduce wear during the movement of the bucket lifting, flipping, etc.

Factory Gallery

FAQs

1. How Much Longer is the Life of Self Lubricating Bushings than Traditional Bushings?

According to test data, the life of a self lubricating bushing is usually 2-3 times that of a traditional lubricated bushing, depending on the application. For example, in the suspension system of a heavy-duty truck, a traditional bushing may need to be maintained every 10,000 km, while a self lubricating bushing can be extended to more than 30,000 km.

2. Do Self Lubricating Bushings need Regular Maintenance?

There is no need to add lubricant regularly, and its self-lubricating characteristics can maintain the whole service life. However, it is recommended to observe the wear of the bushing during each equipment inspection to ensure that there is no abnormality.

3. How High can the Self Lubricating Bushings Withstand?

Different materials have different temperature resistance. For example, PTFE base sleeves can withstand temperatures up to 260 C, while some composites are suitable for the range of-40 C to 150 C. You can select the specific model according to your application.

4. Is There any Special Tool Required to Install Self Lubricating Bushings?

The installation process is similar to that of a traditional bushing. It is usually pressed or hot fitted without special tools. However, it is necessary to ensure that the mating tolerance is in line with the manufacturer’s recommendation to avoid installation damage.

5. What is the Cost Effectiveness of Self Lubricating Bushings?

The initial cost may be 20-30% higher than the traditional bushings, but the long-term maintenance cost can be reduced by more than 50%. In the working device of an excavator, the use of self-lubricating bushings can save about 30% of the maintenance costs per year.

6. How to Choose the Right Bushing Model for My Application?

You should take the load, speed, temperature, environment and other factors into consideration . Myway can provide selection guidelines, or customizing according to your specific parameters.

7. How does the Self Lubricating Bushing Perform in a Dusty Environment?

The polymer coating of self lubricating bushing has good wear resistance and dustproof performance, making it suitable for dusty environments like construction site loaders. Tests show that in dusty environments, the self-lubricating bushing has a wear rate 40% lower than traditional bushings.

8. What are the Advantages of Self Lubricating Bushings over Bronze Bushings?

Self-lubricating bushings require no lubrication, are lighter in weight, have lower friction coefficient (about 0.05-0.1 vs. 0.15-0.2 for brass), and are more resistant to corrosion, especially in wet or corrosive environments.

Zhejiang Myway Co., Ltd. was established in 2005 and has grown into a leading company in the bushing industry. It has more than 20 years of experience in high-quality bushing research, development and production.

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Greenland Central Plaza, Gongshu District, Hangzhou City, Zhejiang Province, China

Myway Self Lubricating BushingMeeting the Lubrication Needs of All Your Transmission Parts