Polygon's bushings feature three distinct components: Continuous glass fibers, Polymer resin, PTFE fabric liners. The fiberglass filament and epoxy resin combined form a very high strength backing. This precisely wound fiberglass structure allows for thin walled bushings (1/16" to 1/8"), reducing the size and weight of assemblies. PTFE liners provide permanent lubrication unlike sintered metals which lose oils over time. Secondary lubrication is not necessary during start-up due to PTFE film transfer to the shaft.
Everyone Saves With Composite Bearings
Give us two minutes and we’ll show you how even those who can’t be trusted with a pet rock can benefit from our maintenance-free composite bearings.
Polygon is now recognized as the largest producer of composite self-lubricated bearing products in the world. We supply mega-sized bearings over 20" in diameter for gate valves used in hydro-electric plants down to 1/8" bearings used in archery equipment. Our bearings are the standard in the man-lift and construction machinery equipment industry. We can also engineer special fiber architectures and hybridization for those special high-tech applications that may require something new or unique.
What is a Composite Bearing?
- Continuous glass fibers
- Polymer resin
- PTFE fabric liners
The fiberglass filament and epoxy resin combined form a very high strength backing. This precise filament wound fiberglass structure allows for thin walled bushings (1/16" to 1/8"), reducing the size and weight of assemblies.
PTFE liners provide permanent lubrication unlike sintered metals which lose oils over time. Secondary lubrication is not necessary during start-up due to PTFE film transfer to the shaft.
Long Life Cycle
Testing shows wear under 0.006" after 1.6 million cycles, made possible by a woven structure of PTFE super-filaments with tensile strengths twenty times greater than PTFE resins. As a result, the bushing resists cold flow under high loads.
Handles Industrial-level Strain
PolyLube composite bushings support a load of up to 30,000 PSI while handling high radial and axial stresses. They resist high shock loading and impact fatigue due to their unique high strength continuous filament wound fiberglass backing. PolyLube bushings are ideal for high load operation in rotational and linear movements as well as in oscillation.
Exceptional Dimensional Stability
They exhibit high performance predictability over wide temperature ranges, ±325°F for all configurations, and up to 475°F for high temperature bearings. From desert heat to bitter cold environments, composite bearings will not pinch the pin or lose the interference fit with the bore. The coefficient of thermal expansion for the PolyLube bearing is approximately 4.8x10-6°F. Learn more...
Composite products are not our sideline; it is our profession. We engineer, design, manufacture, and test composite bushings and wear materials. We offer high temperature, high impact, food grade, insulating, corrosion resistant and numerous other specialty composite bushings.
See how composite bearings can outperform other bearing types.
Any ratings are typical for design purposes. Your design parameters may affect final ratings. Consult with a Polygon sales engineer for guidance. Final testing and approval is the customer's responsibility for their application. This information is derived from our testing and published data. There is no assurance of these properties, or warranty provided that these products are suitable for any particular purpose or operational situation.
Polygon certifies that their product will be free from material defect. Polygon will not accept any liability for loss, damages, or costs from use or misuse of our products.
Specifications are subject to change, and may be affected by our continual process of improvement. Changes may be made without prior announcement.