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Extremely high max. Allowable service temperature in air, Excellent retention of mechanical strength, stiffness and creep resistance over a wide range of temperatures, Good sliding properties and excellent wear resistance, Very good dimensional stability, Inherent low flammability, Good electrical insulating and dielectric properties, Low outgassing in vacuum (dry material), Excellent resistance against high energy radiation.
High-temperature materials with excellent resistance to both chemical attack and burning. With suitable fillers, these moldable plastics are useful for PV factors to 20,000 to 30,000. Polyimide molding compounds employing graphite as a self-lubricating filler show promise in bearing, seal, cages and piston ring applications at temperatures to 500 F. Polyphenylene sulfide can be applied as a coating through use of a slurry spray, dry powder, or fluidized bed. These coating techniques require a final bake at about 700F.
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Plastic Bearings Cages (GS)
