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EP™Bearing MaterialEP™ is a trademark of GGB.©2009 GGB. All rights reserved. www.ggbearings.com 12-09EP™Bearing MaterialCharacteristics Applications• Injection moulded reinforced polyamide 6.6T basedand modified bearing material• Good bearing performance in the range of simple /medium working conditions• The EP™ standard programme is interchangeablewith roll-formed bushes according to ISO3547• Recommended tolerances for fitted bushes:housing h7, shaft h7 - h9• Colour: blackGeneralGenerally applicable within the limits of the materialpropertiesIndustrialMedical equipment, awnings and blinds, scientificequipment, gaming equipment, office equipment,etc.Composition & Structure Operating Conditions AvailabilityInjection moulded Thermoplastic MaterialPA6.6T + PTFE + glass fibres + graphitedry good Ex Stock• Cylindrical bushes and flanged bushesTo order• Non-standard partsoiled goodgreased goodwater fairprocess fluid good afterresistance testingMicrosection Bearing Properties Unit ValueDryMaximum sliding speed v m/s 1.0Maximum pv factorThe pv Limit is depending on the heat dissipatingsurface to contact area ratio1) AH/AC = 5 2) AH/AC = 10 3) AH/AC = 20MPa x m/s1) 0.062) 0.243) 1.0Coefficient of friction f – 0.15 - 0.30Grease lubricationMaximum sliding speed v m/s -Maximum pv factor MPa x m/s -Coefficient of friction f – -GeneralMaximum temperature Tmax °C +140Minimum temperature Tmin °C -40Maximum load p static MPa 80Maximum load p dynamic MPa 40Shaft surface finish Ra µm 0.5±0.3Shaft hardness HV >200Injectionmouldedthermoplasticdry bearingmaterial withadditiveshomogeneouslymixed in