What Are Self-Lubricated Bushings?
Self-lubricated bushings are plain bearings that provide smooth, low-friction movement without the need for additional grease or oil. They feature a design that integrates lubricant into the bearing material—typically in the form of a PTFE (polytetrafluoroethylene) or POM (polyoxymethylene) liner.
These bushings are commonly used in applications where regular maintenance is impractical or where contamination must be minimized.
Advantages of Self-Lubricated Bushings
- Maintenance-Free: No re-greasing or lubrication systems needed.
- Extended Service Life
- Clean Operation: Ideal for environments where contamination must be prevented.
Common Applications
CCTY’s self-lubricated bushings are used in a wide range of industries:
- Belt tensioners in engine systems
- Construction and Agricultural equipment
- Forklifts and material handling
- Robotic arms and automation systems
Materials: PTFE vs. POM Bushings
Compare PTFE and POM for Self-Lubricated Bushings
Understanding the differences between PTFE and POM is key to selecting the right self-lubricated bushing for your application. This article outlines the distinct difference which make them ideal for different applications. Read the blog post.
PTFE (TSA Bushings)
- Excellent low-friction properties
- Wide temperature operating range
- Suited for high-load, high-speed applications
POM + Additives (PSA Bushings)
- Good wear resistance
- Lower cost alternative to PTFE
- Ideal for oscillating movements
Performance Characteristics
| Property | PTFE Bushings | POM Bushings |
| Coefficient of Friction | 0.02–0.20 | 0.05–0.15 |
| Temp Range (°C) | -200 to +280 | -40 to +130 |
| Load Capacity | High | Medium to High |
How to Choose the Right Self-Lubricated Bushing
- Load and Speed Requirements: Higher loads and faster speeds typically favor PTFE-based bushings.
- Environmental Conditions: Consider exposure to dirt, moisture, and temperature extremes.
- Movement Type: Oscillating or linear motion requires different formulations.
Why Choose CCTY’s Self-Lubricated Bushings?
- In-house manufacturing and design
- Custom solutions for your application
- Global logistics and engineering support
- Proven performance in high-demand industries
FAQ: Self-Lubricated Bushings
What is a self-lubricated bushing?
A self-lubricated bushing is a plain bearing that does not require external lubrication. It uses embedded lubricants within its material to provide low-friction performance.
Where are self-lubricated bushings used?
They are widely used in automotive, construction, agricultural, and automation applications.
Can I get a custom-designed bushing for my application?
Yes. CCTY specializes in engineering custom motion control components to fit exact application needs.
Are there size or material limitations?
CCTY offers a wide range of materials and sizes. We work with OEMs to develop the most effective design for performance and cost.
What should I consider when working with a plain bearing manufacturer?
Choosing the right plain bearing manufacturer is critical to the success of your product design, performance, and long-term reliability. Whether you are sourcing bearings for heavy equipment, industrial machinery, or precision robotics, selecting a qualified manufacturing partner goes far beyond comparing price quotes.
This guide will help you evaluate and choose a plain bearing manufacturer.