Self-Lubricating Graphite Plugged Flange Bushings
Product Description
For applications where regular greasing and oiling are impractical, our self-lubricating flange bushings provide a robust, maintenance-free solution. By embedding solid graphite lubricant plugs into a high-strength metallic base, these components deliver continuous, low-friction performance in the most demanding environments.
The integrated flange provides a positive axial location and a surface to bear thrust loads, making it a versatile component for a wide range of machinery.
How Solid Lubricant Bushings Work
These oilless bushings operate on the principle of solid-state lubrication. There is no need for external oil or grease.
Initial Transfer: As the shaft begins to move within the bushing, it makes contact with the graphite plugs.
Lubricating Film: A microscopic film of solid lubricant is immediately transferred from the plugs to the shaft's surface.
Continuous Performance: This ultra-thin, low-friction film provides continuous lubrication, renewing itself as the machine operates. The result is a smooth, self-polishing bearing surface that prevents seizure and reduces wear.
Key Advantages of Oilless Bushing Technology
Our graphite-plugged bushings are engineered to solve common bearing challenges:
Maintenance-Free Operation: Eliminates the need for greasing schedules, reducing labor costs and machine downtime.
High Temperature Performance: Graphite is stable at temperatures far exceeding the limits of conventional oils and greases.
Ideal for Heavy Loads & Low Speeds: Excels in conditions where a hydrodynamic oil film cannot form, preventing metal-to-metal contact.
Clean Operation: Perfect for industries like food processing, packaging, and textiles where product contamination from oil or grease is a concern.
Superior Wear Resistance: The combination of a hard, durable base metal and the self-lubricating properties of graphite ensures a long service life.
Construction and Materials
We manufacture bushings to meet your specific performance requirements.
Base Metal:
Aluminum Bronze (e.g., C95400): For high-strength, high-load applications.
Tin Bronze (e.g., C93200): An excellent general-purpose bearing material.
Steel or Stainless Steel: For specific structural or corrosion-resistance needs.
Solid Lubricant:
Graphite: The standard for most applications, offering excellent lubricity and high-temperature resistance.
Other Formulations: Custom solid lubricants can be used for unique environments.
Common Applications
The unique properties of these bushings make them ideal for:
Plastic Injection Molds & Die Casting Machinery
Hydraulic Presses and Stamping Equipment
Construction & Earth-Moving Equipment Pivot Points
Valves, Gates, and Dam Equipment
Automotive Tooling and Assembly Lines
Food Processing and Packaging Machinery
Request a Quote for Your Application
Eliminate lubrication headaches and increase machine reliability. Provide us with your required dimensions (Inner Diameter, Outer Diameter, Length, Flange OD, and Flange Thickness) for a fast and accurate quote.