Polygon’s bearings feature three distinct components:
- Continuous glass fibers
- Polymer resin
- TFE 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 bearings 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 bearings 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 4.8×10 –
6 °F. Learn more
Composite products are not our sideline; it is our profession. We engineer, design, manufacture,
and test composite bearings and wear materials. We offer high temperature, high impact, food
grade, insulating, corrosion resistant and numerous other specialty composite bearings.