Where are self-lubricating composite bearings used?
They are commonly used in hydropower, marine, mining, infrastructure, valves, and heavy industrial equipment where lubrication is difficult or environmental contamination must be avoided.
Industry Sectors
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Deployment
Proven Performance
Proven Performance
in every extreme.
Fritex composites are globally trusted in critical systems where failure is not an option. From the ocean floor to Mars orbit, our materials replace traditional lubrication with zero-maintenance reliability.
Renewable Energy
Hydropower
Wicket gate bushings and turbine main shaft bearings operating submerged for 50+ years.
50+ Years Submerged
Offshore
Marine
Saltwater resistant. Zero swelling. High load capacity for rudder systems.
No Swell Salt/Corr
Heavy Load
Mining
Pivot points for excavators and crushers exposed to abrasive dust.
Abrasive High Load
Cryogenic
Aerospace
Valves and actuators operating at -196°C in liquid oxygen.
-196°C Vacuum
Civil Eng
Infrastructure
Bridge expansion bearings and structural dampeners. Zero maintenance required.
Zero Maint High PV
Custom
Project
Have a vision? We engineer bespoke solutions.
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01
Critical Infrastructure Grand Coulee Dam
0% Pollution
5x Life Span
450 Ø mm Shaft
50+ Years Exp
MISSION PROFILE: SUSTAINABILITY Eliminating Grease.
Eliminating Grease.
Protecting Water.
Traditional bronze bushings required tons of grease annually, much of which ended up in the Columbia River. Fritex **FW-Series** composites replaced these legacy bearings, operating completely dry or water-lubricated.
The result was total elimination of lubricant pollution and an extension of maintenance intervals from 5 years to over 25 years.
VIEW FW-SERIES SPECS Use-Case Matrix
The common thread is not the sector. It is the failure mode.
Fritex materials are usually specified when the application cannot tolerate grease leakage, seizure, abrasive contamination, corrosion, or difficult maintenance access. That is why the same bearing logic appears in hydropower, marine, mining, and infrastructure projects.
| Sector | Typical challenge | Why composite |
|---|---|---|
| Hydropower | Submerged operation and pollution control | Dry or water-compatible running reduces grease leakage |
| Marine | Salt, swelling, and corrosion exposure | Composite liners resist corrosion and lower maintenance burden |
| Mining | Dust, shock, and hard-to-service pivots | Self-lubricating bearings reduce grease contamination |
| Infrastructure | Long maintenance intervals | Stable sliding performance without frequent service access |
FAQ
Application questions
This section clarifies where Fritex materials fit and why composite bearing terminology should be associated with these operating environments.
Why are composite bearings used in wet or corrosive environments?
Composite bearings are often selected for wet or corrosive duty because they can run without grease and are less exposed to the corrosion and contamination problems associated with metal-on-metal sliding pairs.
Are composite bearings suitable for heavy-load pivots?
Yes. Filament wound composite bearings are frequently specified for heavy-load pivots when engineers also need vibration damping, maintenance reduction, and resistance to abrasive contamination.
Can Fritex materials be used in custom equipment?
Yes. Many composite bearing and liner programs are engineered around the application geometry, operating conditions, shaft material, and installation method.