Contact Us
- Building 3, No.81, Xinxing Road, Ganyao Town, Jiashan County, Zhejiang Province, China
- sales@ramshin.com
- +86-13484178032

Self-Lubricating Dry Bushing
1. Material: steel+bronze+PTFE 2. Specification: Customized 3. Major markets: Europe, the United States, Southeast Asia, India, Russia, South Korea, etc. 4. Packaging specifications: Carton, wooden box 5. Delivery: Communication
Description
Definition
SF-1 Oilless bushing is a sliding bearing made of steel plate as the substrate, sintered spherical bronze powder in the middle and rolled polytetrafluoroethylene (PTFE) mixture on the surface and rolled. It has a small coefficient of friction, wear resistance, good corrosion resistance and oil-free lubrication. The use of this product can reduce the cost, reduce the size of machinery, avoid the phenomenon of biting the shaft and reduce mechanical noise and other advantages.

Disruptive technological advantages
Lifetime lubrication free: PTFE composite layer, completely eliminating the need for lubrication
Extraordinary wear resistance: Laboratory tests show that its lifespan is 8 to 10 times that of traditional copper sleeves
Extreme working condition expert: Stable operation from -50℃ to +280℃ (instantaneous 350℃)
Analysis of the six-layer composite structure1. High-strength matrix: Quenched and tempered alloy steel
2. Porous transition layer: 25% porosity oil storage structure
3. Nano-reinforcing layer: Carbon fiber reinforced PTFE
4. Surface texture layer: Laser micro-pit oil storage design
5. Anti-corrosion coating: Tin plating or other coatings are optional
Technical Specifications
| Base material | High-strength alloy steel |
| Lubrication layer | PTFE fiber-reinforced composite material |
| Coefficient of friction | μ≤0.08 |
|
Load-bearing capacity |
200MPa radial / 120MPa axial |
| PV limit value: | 6.5N/mm²·m/s |
Industry solutions
Food machinery: FDA-certified filling equipment rotating shafts
Engineering vehicles: Excavator boom hinge points (Dust-proof design)
Wind power equipment: Pitch bearing (Low temperature start-up guarantee at -40℃)
Semiconductor: Vacuum Robotic Arm Joint (Zero Pollution)




Why choose us?
●We are constantly expanding our product line to meet the evolving needs of our customers.
●We believe that all aspects of business operations need to be constantly pushed forward in order to achieve long-lasting success.
●Our state-of-the-art facility is equipped with the latest technology to ensure accuracy and consistency.
●With strong technical strength, rich production experience, perfect service system, brand-new marketing concepts, to go to a broader market, providing advanced products and services for my country's industrial automation system is our unremitting pursuit!
●We believe in transparency and open communication with our customers.
●Let us work together to actively develop environmental protection requirements, energy-saving, high-quality and efficient new Bronze Shoulder Bushings to serve the industry.
●We are a trusted partner for businesses across a range of industries.
●Our company strives to create a platform for every employee to develop, improve and realize their value, and provide a broad space for development to every employee who aspires to be a success, so that employees can bring out their maximum potential.
●We understand the importance of timely delivery and strive to meet all deadlines.
●We take it as our purpose to provide customers with advanced, high-quality, reasonable and economical Bronze Shoulder Bushings, and to build a world-class brand as our goal.
Factory photos


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