Techemer - Water-Lubricated Bearings & Shaft Seals Manufacturer Since 2008
Phenolic Fabric Bearing Self-Lubricating Composite Bushing
Techemer is a professional phenolic bearing manufacturer providing high-performance fabric-reinforced phenolic composite bearings for marine, hydropower, pump, and industrial applications.
Minimum Order Quantity: 1
Price: USD, CNY
Packaging Details: Wooden or heavy duty carton packaging
Delivery Time: 15working days
Payment Terms: T/T
Supply Ability: 10000
Price: USD, CNY
Packaging Details: Wooden or heavy duty carton packaging
Delivery Time: 15working days
Payment Terms: T/T
Supply Ability: 10000
5.0
design customization
Please fill out the form below to request a quote or to request more information about us. Please be sure to upload customized requirement documents or pictures, 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.
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.
What Is a Phenolic Bearing?
A phenolic bearing is a high-strength composite bushing manufactured from thermosetting phenolic resin impregnated into cotton fabric or woven cloth layers, then molded under high temperature and pressure. The result is a dense, wear-resistant, and dimensionally stable bearing material that performs exceptionally well in water-lubricated and self-lubricating applications.
Techemer phenolic bearings are engineered for demanding environments where metal bearings fall short. They offer:
Heavy load applications – up to 318 MPa compressive strength
Low-speed and oscillating operation
Water-lubricated systems – seawater, freshwater, or sand-laden water
Oil-free / self-lubricating conditions
Corrosive and abrasive environments
Our Phenolic Composite Bearing Structure Features
Phenolic composite bearings are manufactured through a controlled process where high-quality cotton fabric is impregnated with phenolic resin, laminated under heat and pressure, and precision-machined to final dimensions. The fabric reinforcement provides mechanical strength while the resin matrix delivers wear resistance and dimensional stability.
Key features of Techemer phenolic bearings:
| Feature | Benefit |
|---|---|
| High Compressive Strength | Up to 318 MPa, supports heavy static and dynamic loads |
| Self-Lubricating Performance | Low friction under water or boundary lubrication conditions |
| Low Water Absorption | Saturated absorption ≤0.28%, ensuring stable clearances |
| Wide Temperature Range | -40°C to 130°C, suitable for varied environments |
| Machinable Inner/Outer Diameters | Precision machining for accurate fit and IT-grade tolerances |
| Excellent Wear Resistance | Long service life in abrasive media like sand-laden water |
Phenolic Fabric Reinforced Bushing Performance Parameter
Made from a custom phenolic system and polymer fiber, it is wear-resistant throughout and can be machined in both the inner and outer diameters to achieve excellent application precision.
| Property | Unit | Typical Value | Test Method |
|---|---|---|---|
| Density | g/cm³ | 1.3 | GB/T 1033.1 |
| Friction Coefficient | μ | 0.1 – 0.22 | GB/T 3960 |
| Bending Strength | MPa | 120 | GB/T 1449 |
| Tensile Strength | MPa | 70 | GB/T 1447 |
| Compressive Strength | MPa | 318 | GB/T 1041 |
| Impact Strength | kJ/m² | 318 | GB/T 1043.1 |
| Shear Strength | MPa | 84 | GB/T 1303.2 |
| Rockwell Hardness | HRM | 100 | GB/T 3398.2 |
| Saturated Water Absorption | % | 0.28 | GB/T 1034 |
Why Choose Techemer as Your Phenolic Bearing Manufacturer?
Advanced Composite Material Technology
Proprietary phenolic resin formulations optimized for high load and low friction operation.
Precision Manufacturing
Controlled molding and machining processes ensure dimensional accuracy and consistent quality.
Proven Industry Experience
Techemer phenolic bearings are widely used in marine, hydropower, pump, and industrial equipment applications.
Global Expertise
ISO 9001:2015 certified. Comprehensive inspection processes ensure consistent product quality and reliability.
Custom Engineering Support
Custom dimensions, materials, and designs available for different operating conditions.
Phenolic Bearings vs. Traditional Metal Bearings
Choosing the correct bearing material directly affects equipment lifespan, maintenance costs, and operational efficiency.
| Feature | Techemer Phenolic Bearing | Traditional Metal Bearing |
|---|---|---|
| Self-Lubricating | ✓ (water or dry) | Requires oil/grease |
| Corrosion Resistance | Excellent | Limited |
| Maintenance | Low | High |
| Weight | Lightweight | Heavy |
| Water Lubrication | Excellent | Limited |
| Seawater Resistance | Excellent | Poor |
| Wear Resistance | High | Moderate |
| Abrasive Media Tolerance | High | Low |
| Machinability | Good (both ID and OD) | Requires specialized equipment |
Applications
Phenolic bearings are widely used in water-lubricated and demanding industrial environments where corrosion resistance and low maintenance are essential. They have been used as water-lubricated resin bearings for hydro turbine main shafts since around 1970, contributing to reduced environmental pollution
Marine & Offshore
Stern tube bearings, rudder bearings, propeller shaft systems, rudder carriers
Hydropower
Turbine guide bearings, wicket gate bearings, main shaft bearings, water-lubricated resin bearings
Industrial Pumps
Vertical pumps, horizontal pumps, circulating water pumps, slurry pumps
Heavy Machinery
Cranes, excavators, rolling mills, mining equipment
Rail Transit
Heavy-load sliding components, bearing retainers
Construction Equipment
Hydraulic systems, vibrating equipment, pivot joints
FAQ
1
Can phenolic bearings operate without lubrication?
Yes. Phenolic bearings have inherent self-lubricating properties due to their fabric-resin structure. They perform well under dry or boundary lubrication conditions, making them suitable for intermittent or start-stop operations. They also show excellent self-lubricating performance under boundary lubrication conditions during turbine starts and stops .
2
Are phenolic bearings suitable for seawater environments?
Yes. Phenolic bearings are corrosion-resistant and perform excellently in seawater, freshwater, and even sand-laden water conditions, making them ideal for marine and offshore applications.
3
How do phenolic bearings compare with fiber wound composite bearings?
Both are composite bearings, but phenolic bearings generally offer higher compressive strength at a more economical price point, with a matte/rougher surface texture. Fiber wound bearings (FRC series) feature a smoother PTFE liner and even lower friction, suitable for higher-speed applications.
4
Can I get custom dimensions?
Yes. Techemer supports custom phenolic bearing dimensions and material formulations for different industries and operating conditions. Both inner and outer diameters can be precision-machined to your specifications.
5
Do you offer phenolic bearing replacement for other brands?
Yes. We can cross-reference existing bearing dimensions and performance requirements to provide a suitable replacement solution.
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