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Polygon announces new line of high-performance bearings

News International-French

14 Aug 2019

Polygon's bushings feature three distinct components: Continuous glass fibers, polymer resin, and PTFE fabric liners.

Polygon announces new line of high-performance bearings

Polygon announces new line of high-performance bearings

The filament wound fiberglass and epoxy resin combine to 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
Polygon supplies bearings over 20" in diameter for gate valves used in hydro-electric plants down to 1/8" bearings used in archery equipment. There bearings are the standard in the man-lift and construction machinery equipment industry. They 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?
Polygon's bushings feature three distinct components:

  • Continuous glass fibers
  • Polymer resin
  • PTFE fabric liners

Polygon announces new line of high-performance bearings

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.
Greaseless

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.