Sf-1 self lubricating bushing
Sf-1 self lubricating bushing
Discover our plain bearings: Flange bearings, sleeve bushings, and thrust washers. Customizable bushing materials available. Our products are wear-resistant, maintenance-free, and designed to withstand dirt, dust, and corrosion.
Self-Lubricating Bushing Bearings – High Performance, PTFE composite bushing, tribology bearing, tribology in design
Sf-1 self-lubricating bushing, PTFE added self-lubricating bushing, sleeve bearing, du bush design guide
SF-1 Self-Lubricating Bushings: Composite Bearings for Maintenance-Free Use
SF-1 self-lubricating bushings are engineered composite bearings designed for maintenance-free operation across various settings. These bushings combine multiple materials to function seamlessly without additional lubrication.
Material Composition:
- Base Material: The foundation of the SF-1 bushing is high-quality low-carbon steel, providing essential structural support and serving as a base for subsequent layers.
- Intermediate Layer: This consists of sintered, porous spherical copper powder bonded to the steel base. The copper layer enhances heat dissipation during operation and strengthens the bond between the steel base and the PTFE layer.
- Working Layer: The surface layer is made of a PTFE-based, wear-resistant, lubricating material. Known for its low friction and high wear resistance, PTFE (polytetrafluoroethylene) ensures the bushing operates effectively under dry friction conditions and across various loads, speeds, and temperatures.
Properties and Benefits:
- Self-Lubrication: The PTFE layer offers self-lubricating qualities, removing the need for external lubrication and thereby lowering maintenance efforts and costs.
- Load Capacity: Designed to handle mechanical loads effectively, SF-1 bushings are versatile across different load scenarios.
- Heat Transfer: The copper powder layer facilitates efficient heat transfer, preventing overheating and extending the bushing’s lifespan.
- Corrosion Resistance: To avoid atmospheric corrosion, the steel backing may be plated with materials like copper or tin, with options for specific coatings to boost resistance in particular environments.
- Wear Resistance: The molecular structure of the PTFE layer provides outstanding wear resistance, contributing to the bushing’s durability.
- Environmental Compatibility: Available in various formulations, including lead-free options, to comply with global environmental standards.
Applications:
SF-1 bushings find application in a broad array of machinery and equipment, such as:
- Agricultural machinery (e.g., tractors, harvesters)
- Automotive parts (e.g., power steering pumps, door hinges)
- Office machinery (e.g., printers, copiers)
- Hydraulic systems (e.g., components, valves)
- Household appliances and fitness equipment
Installation and Customization:
These bushings are adaptable to numerous configurations and are available in both standard sizes and custom dimensions to meet specific needs. They can be applied in a variety of mechanical movements, including sliding, rotating, swinging, and linear motions.
In summary, SF-1 self-lubricating bushings provide a dependable, zero-maintenance bearing solution for a wide array of applications, thanks to their innovative material composition and inherent self-lubricating features.
bush material, 
Self-lubricating products made of carbon steel base material, bronze powder, PTFE, fiber, and other materials by special technology, have the characteristics of environmental protection. It not only has certain chemical properties but also has good physical and mechanical properties. It can be used in sliding, rotating, swinging, and linear reciprocating parts of various machinery. It has the characteristics of self-lubrication, wear resistance, low friction coefficient, good coupling performance and low noise.
Product structure and working mechanism
1. Self-lubricating layer, the thickness of 0.01~0.03mm, is a mixture of PTFE and fiber and other antifriction materials, through the plate making process into the copper powder tissue and covered on the surface of the copper layer. As a working face, the transfer film is formed during the work, which can significantly reduce the number of friction systems and protect the grinding parts.
2. Bronze powder layer, as an attachment of self-lubricating layer.
3. Low carbon steel layer, good load-bushing, and heat dissipation in work.
4. Copper/tin coating, with good corrosion resistance.
Sf-1 / PTFE oil-free bushings are made of steel plate with sintered spherical bronze powder in the middle and rolled PTFE and mixture on the surface. It has the characteristics of low friction coefficient, wear resistance, good corrosion resistance, and no oil lubrication. It can reduce the cost, reduce the size of the machine, avoid the phenomenon of shaft biting and reduce the noise and other advantages. Products have been widely used in various machinery sliding parts, such as printing press, textile machine, tobacco machinery, automobile, motorcycle and agricultural and forestry machinery…
It is generally recommended that the tolerance of the seat hole is H7 and the tolerance of shaft diameter is H8
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