Boundary Lubrication Bushing
Boundary lubrication bushings: self-lubricating bushings are great for low load and medium speed applications. They consist of a layer of non-metallic self lubricating material (POM) that has been chemically bonded onto a layer of steel. These bushings are very resistant to wear and have a very low coefficient of friction. MW-2 bushings ensure long-lasting, efficient operation even in demanding conditions.
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Bushing Material
Boundary Lubrication Bushing：self-lubricating bushings consist of a high-strength, three-layer composite structure
Material Structure & Technical Details
Here are some of the common equivalents or aliases for Boundary Lubrication Bushing : SF-2 Bushing、DX Bushing、OILES 500 、IGUS G series、VIBRA series、BMZ series and Composite Bushings etc.
Materials Structure And Thickness（Metallurgied Structuer）
- Fiber-reinforced POM:0.3-0.5 mm
- Porous bronze: 0.2 -0.3 mm
- Steel backing: 0.4 -2.2 mm
- Electroplating layer: Tin-plating about 0.005 mm,or copper-plating about 0.008 mm
Boundary Lubrication Bushing Machining Process
The foundation of the MW-2 bushing is a high-quality low-carbon steel backing. This layer provides excellent mechanical strength and high load-bearing capacity, ensuring the bushing maintains its shape and performance under heavy loads and mechanical stress.
2.Bronze Powder Layer — Enhanced Wear Resistance and Heat Dissipation
A sintered bronze powder layer is applied over the steel backing. This layer enhances the bushing’s wear resistance and provides excellent thermal conductivity, allowing heat generated by friction to dissipate more efficiently.
3.POM (Polyoxymethylene) Layer — Low Friction and Excellent Wear Resistance
The surface of the MW-2 bushing is made from POM (Polyoxymethylene), a high-performance engineering plastic known for its excellent wear resistance and low friction properties. This layer ensures smooth, low-friction operation, even under medium loads, and provides self-lubrication throughout the product’s life cycle.
Material Combination
Copper black
Copper yellow
Tin blue
Oil groove
| Type | Application Characteristic | Sinter Bronze | Backing | Lining |
| MW-2X | General,lead free | CuSn8Zn3 | SPCC or DC01 | POB+Pb+Graphite+Other |
| MW-2Y | Lead free | CuSn8Zn3 | SPCC or DC01 | POB+Fibre+Other |
| MW-2S | For Oilless Lubricating of short time | CuSn8Zn3 | SPCC or DC01 | POB+PTFE+Other |
| MW-2L | Lower Friction coef. | CuSn8Zn3 | SPCC or DC01 | POB+Fibre+Other |
Bushing Size
| d | D | ( shaft dia.) | (housing bore H7) | Wall thickness | (hole dia.) | f₁ | f₂ | L040 | ||||||||||
| 10 | 12 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | |||||||||
| min. | max. | |||||||||||||||||
| 10 | 12 | 10 | 12 | 0.955 | 0.980 | 4 | 0.5 | 0.3 | 1010 | 1015 | 1020 | |||||||
| 12 | 14 | 12 | 14 | 4 | 1210 | 1212 | 1215 | 1220 | ||||||||||
| 14 | 16 | 14 | 16 | 4 | 1412 | 1415 | 1420 | |||||||||||
| 15 | 17 | 15 | 17 | 4 | 1512 | 1515 | 1520 | 1525 | ||||||||||
| 16 | 18 | 16 | 18 | 4 | 1615 | 1620 | 1625 | |||||||||||
| 18 | 20 | 18 | 20 | 4 | 1815 | 1820 | 1825 | |||||||||||
| 20 | 23 | 20 | 23 | 1.445 | 1.475 | 4 | 0.8 | 0.4 | 2015 | 2020 | 2025 | 2030 | ||||||
| 22 | 25 | 22 | 25 | 6 | 2215 | 2225 | ||||||||||||
| 25 | 28 | 25 | 28 | 6 | 2220 | 2525 | 2530 | |||||||||||
| 28 | 32 | 28 | 32 | 1.935 | 1.970 | 6 | 1.0 | 0.5 | 2220 | 2830 | ||||||||
| 30 | 34 | 30 | 34 | 6 | 3020 | 3025 | 3030 | 3040 | ||||||||||
| 35 | 39 | 35 | 39 | 6 | 3520 | 3530 | 3535 | 3540 | ||||||||||
| 40 | 44 | 40 | 44 | 8 | 4020 | 4030 | 4040 | 4050 | ||||||||||
| 45 | 50 | 45 | 50 | 2.415 | 2.460 | 8 | 1.2 | 0.6 | 4520 | 4530 | 4540 | 4545 | 4550 | |||||
| 50 | 55 | 50 | 55 | 8 | 5030 | 5040 | 5050 | |||||||||||
| 55 | 60 | 55 | 60 | 8 | 5530 | 5540 | 5550 | |||||||||||
| 60 | 65 | 60 | 65 | 8 | 6030 | 6040 | 6050 | |||||||||||
Bushing Shape
The different bushing shapes allow bushings to be widely used in various mechanical structure parts, such as the moving parts inside cars or the connecting parts on industrial machinery or other situations where there’s friction and wear that needs to be beaten down.
Cylindrical
Flanged
Thrust Washers
Wear Plates
Special Shape
Bearing Bush
Key Advantages of MW-2 Self-Lubricating Bushings
Self-Lubricating, Cost-Saving Solution
The POM layer in MW-2 bushings provides long-term self-lubrication, reducing or eliminating the need for external lubricants. This significantly lowers equipment maintenance costs, reduces the need for frequent lubrication, and extends the lifespan of machinery.
High Wear Resistance for Harsh Operating Conditions
The durable materials and multi-layer structure of MW-2 bushings allow them to withstand tough working environments (dust, dirt, high humidity, etc.). Whether in hydraulic equipment under high pressure or construction machinery operating under heavy loads, MW-2 bushings deliver outstanding wear resistance.
Reduced Downtime, Increased Productivity
For B2B customers, minimizing downtime is crucial to reducing production costs and maximizing efficiency. MW-2 bushings’ durable and long-lasting design significantly reduces downtime caused by maintenance or part replacements, ensuring that your production process runs smoothly.
Technical Specifications
To meet the diverse requirements of various applications, MW-2 self-lubricating bushings are designed and manufactured with precise material ratios and processes to ensure optimal performance.
- Material Structure: Low-carbon steel + sintered bronze powder + POM (Polyoxymethylene)
- Max Static Load: 140N/mm²
- Coefficient of Friction: 0.05-0.20 (depending on the working conditions)
- Operating Temperature Range: -40°C to +130°C
- Max Sliding Speed: 2.5m/s
- Wear Rate: High wear resistance under normal operating conditions, suitable for medium load and low-speed applications
Bushing Applications
Versatile Applications for Various Equipment
Construction Machinery: Excavators, bulldozers, loaders, and other equipment that require high-load and self-lubricating parts.
Agricultural Machinery: Harvesters, tractors, and other equipment in need of wear-resistant bearing solutions.
Automotive Industry: Suspension systems, steering components, and other parts that require self-lubrication and wear resistance.
Hydraulic Systems: Guiding and sealing applications in hydraulic cylinders and piston rods that require lubrication and wear protection.
Combine Harvester
Crane
Bulldozer
Loader
Graders
Automobile
Truck
Tractor
Dump Truck
Excavator
Custom Services and Solutions
Personalized Design Support
We understand that each customer’s needs may vary, which is why we offer customized solutions tailored to different equipment applications. We provideself-lubricating bushings in specific sizes, materials, and thicknesses to match your unique requirements. No matter what industry or application your equipment is used in, we can offer the optimal product selection to meet your needs.
Free consultation
Communicate with us to clarify the requirements
Free design
Customize your product according to your needs
Sample making
Confirm the drawings and arrange for sampling
Sample confirmation
Customer confirms sample and arranges production
Finished inspection
Inspect the finished product and arrange for shipment
FaQ
Are you a factory？
Of course, we are a manufacturer that can complete the entire production line from raw materials to finished bushing products.
What bushings do you production?
We mainly produce various self-lubricating bushings. Please refer to our product solutions or contact us for details
What is a bushing?
What is the general process for manufacturing bushings?
Bushing manufacturing involves several key steps:
Material Selection: Choosing the appropriate material such as bronze, rubber, or plastic, depending on the application.
Forming: Techniques like casting, pressing, or extrusion are used to shape the raw material into a bushing.
Heat Treatment: For metal bushings, heat treatment is applied to increase strength and wear resistance.
Finishing: This step involves precision machining to achieve the required dimensional tolerances and surface finish.
Surface Treatment: A coating may be applied for corrosion resistance or lubrication purposes, such as zinc plating or Teflon coating.
What materials are commonly used in bushing production?
Common materials used in bushings include:
Bronze: Known for its durability and low friction, often used in heavy-duty applications.
Rubber: Used for vibration dampening in automotive and machinery applications.
Nylon/Polymer (like PTFE): Provides self-lubrication and is ideal for low-load, low-friction environments.
Steel: Used for high-load applications, often combined with a softer material like bronze or plastic as the lining.
How are bushing dimensions and tolerances maintained during production?
What surface treatments are used for bushings?
Bushings often undergo surface treatments to enhance their properties:
Zinc or nickel plating: Protects the metal surface from corrosion.
Teflon (PTFE) coatings: Provide low friction and self-lubricating properties.
Phosphating or black oxide coating: Improve wear resistance and reduce the potential for galling (severe adhesion between surfaces in motion).
What are the challenges in bushing production?
Key challenges include:
Maintaining precision: Ensuring dimensional accuracy across large production runs can be difficult, especially for complex shapes.
Material selection: Using the wrong material could result in failure under stress or environmental conditions.
Surface finish quality: Achieving smooth surface finishes is crucial to reducing friction and wear.
Can bushings be custom-made?
What environmental factors are considered in bushing production?
Manufacturers consider several environmental aspects:
Material sustainability: Using eco-friendly or recyclable materials.
Waste management: Minimizing production waste and properly handling hazardous materials.
Energy consumption: Optimizing energy use in production processes to reduce carbon footprint.
What is the purpose of a bushing?
How can I tell when a bushing needs to be replaced?
Signs that a bushing may need replacement include:
Cracks, splits, or visible damage.
Increased noise, such as squeaking or grinding.
Excessive play or movement in the component where the bushing is installed.
Vibration or instability in the machinery or equipment.
How do I maintain bushings?
What is the difference between a bushing and a bearing?
How long do bushings last?
More Related Bushing products
Contact Us for More Information
We not only provide high-quality self-lubricating bushings but also offer comprehensive technical support and after-sales service to ensure your equipment always operates at peak performance. If you have any questions or need a quote, please feel free to contact us at any time.
Tel/Whatsapp： +86 136 4583 4002
Email：myway@mybushing.com
