Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
Industrial-Grade DU Bushing: Carbon Steel Core + Copper Powder Layer + PTFE Coating
Engineered for smooth operation: Carbon steel + copper powder matrix + PTFE anti-friction layer
Our industrial-grade DU Bushing is engineered with a high-performance composite structure, combining a carbon steel base for structural rigidity, a copper powder layer for enhanced thermal conductivity and load distribution, and an inner PTFE coating for superior self-lubrication and friction reduction. This precision-engineered design delivers exceptional wear resistance, corrosion protection, and stability, making it ideal for heavy-load industrial applications—from machinery and automation equipment to automotive and engineering systems. The bushing eliminates the need for frequent lubrication, reducing maintenance costs while ensuring smooth, reliable operation even in demanding working environments. With its balanced blend of strength, durability, and functional efficiency, it offers extended service life and consistent performance to support critical industrial operations.
5.0
design customization
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Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
1. Product Advantages
Forever Seals’ DU Bushing stands out with a composite structure of carbon steel, copper powder, and inner PTFE coating, delivering three core advantages: exceptional wear resistance for long-term use in high-friction scenarios; inherent self-lubrication from PTFE, eliminating frequent manual lubrication and reducing maintenance costs; and robust load-bearing capacity, thanks to the carbon steel base and copper powder’s load-distribution capability, supporting heavy-duty industrial operations. It also offers excellent corrosion resistance and thermal conductivity, ensuring stability in harsh environments.
2. Working Principle
The DU Bushing’s performance relies on its synergistic multi-layer design: the carbon steel base provides structural rigidity to withstand high mechanical stress; the intermediate copper powder layer enhances thermal dissipation, preventing overheating, and improves load distribution across the surface; the inner PTFE coating acts as a low-friction barrier, minimizing contact resistance between the bushing and mating parts. This combination enables self-lubrication during operation, reducing friction and wear, while the composite structure ensures efficient force transfer and heat management—guaranteeing smooth, reliable performance even under extreme loads or intermittent motion.
3. Product Details
- Material Composition: Carbon steel (base) + copper powder (intermediate layer) + PTFE (inner coating)
- Precision Engineering: Strict dimensional tolerances (customizable per ISO standards) for seamless fitting with mating components
- Surface Finish: Smooth PTFE inner surface (Ra ≤ 0.8μm) for minimal friction; corrosion-resistant outer carbon steel with optional anti-rust treatment
- Temperature Range: -20°C to 120°C (-4°F to 248°F) for adaptability to diverse working conditions
- Load Capacity: Up to 30MPa (4350 psi) static load; 15MPa (2175 psi) dynamic load
- Customization: Available in various sizes (OD: 8mm–100mm, ID: 5mm–95mm, length: 10mm–50mm) and custom specifications upon request
4. Application Range
Ideal for industrial scenarios requiring high durability, low maintenance, and reliable load-bearing:
- Machinery & Automation: Conveyor systems, robotic arms, printing machinery, and packaging equipment
- Automotive & Transportation: Engine components, suspension systems, and transmission parts
- Engineering & Construction: Hydraulic cylinders, construction machinery (excavators, loaders), and agricultural equipment
- General Industry: Pumps, valves, fans, and textile machinery operating in high-load or low-lubrication environments
5. FAQ
Q1: Do I need to lubricate the DU Bushing during use?
A1: No. The inner PTFE coating provides permanent self-lubrication, eliminating the need for additional lubricants under normal operating conditions. For extreme high-temperature or high-load scenarios, occasional light lubrication can extend service life.
Q2: What is the maximum operating temperature for this bushing?
A2: The standard operating temperature range is -20°C to 120°C (-4°F to 248°F). For applications exceeding this range, contact Forever Seals for customized high-temperature-resistant versions.
Q3: Can the DU Bushing be customized for non-standard sizes?
A3: Yes. Forever Seals offers full customization for outer diameter, inner diameter, length, and surface treatments to meet specific customer requirements. Contact our sales team for detailed technical support.
Q4: How does the DU Bushing perform in corrosive environments?
A4: The PTFE inner coating and optional anti-rust-treated carbon steel outer layer provide good corrosion resistance. For highly corrosive environments (e.g., chemical processing), we recommend our enhanced corrosion-resistant grade—please consult our engineers for tailored solutions.
6. Company Selling Points (Forever Seals)
- Expertise & Quality: With over 15 years of experience in seal and bushing manufacturing, we adhere to ISO 9001 quality standards, ensuring each DU Bushing undergoes strict inspection (dimensional accuracy, material composition, and performance testing) before delivery.
- R&D Capability: Our in-house R&D team continuously optimizes material formulas and production processes, offering technical customization for complex industrial applications.
- Reliable Supply Chain: We maintain stable inventory of standard sizes and ensure fast lead times for custom orders, supporting timely project delivery for our customers.
- Customer-Centric Service: Our professional technical and sales teams provide one-stop support—from product selection and design consultation to after-sales maintenance—ensuring a seamless experience for global clients.
- Sustainable Manufacturing: We prioritize eco-friendly materials and energy-efficient production processes, contributing to green industrial practices while delivering high-performance products.
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