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GGB-Megalife® XT

Fiber Reinforced Composite PTFE Thrust Washer
GGB MEGALIFE XT Fiber Reinforced Composite Washer

Product's benefits

  • Material allows for simple assembly
    Simple assembly
  • Quality materials you can rely on
  • Material eliminates/reduces maintenance
    Maintenance Free Operation
  • Material allows for compact design
    Common to One Piece Compact Design
  • Material performs well under lubricated operation
    Lubricated operation
  • Material withstands high loads
    High Load Capacity
  • Material helps extend application's service life
    Extended service life
  • Material operates well in dry environment
    Dry operation


  • Proprietary filled PTFE tape liner on both surfaces
  • Excellent shock resistance
  • High load capacity
  • Excellent misalignment resistance
  • Excellent contamination resistance
  • Good surface speed capability
  • Very good friction and wear properties
  • Good chemical resistance
  • Tested acc. to ASTM E595/ECSS-Q-ST-70-02C - Outgassing properties of materials used in Spacecraft equipment



Bearing forms available in standard dimensions

  • Plain thrust washers

Bearing forms made to order: thrust washers with non-standard dimensions

GGB FRC Range - Fiber Reinforced Composite Bearings - High Load Self-Lubricating Bearings
GGB MEGALIFE XT - Fiber Reinforced Composite PTFE Thrust Washer

Operating performance

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GGB-Megalife® XT
Dry Operation Very Good
Lubricated Operation Fair
Greased Operation Poor
Machinable Consult with Applications Engineer
RoHS Compliant Compliant
Standard Sizes Available
Application Excellence
Very Good
Very Good
Not Available



  • Composite Thrust Washer
  • Proprietary filled PTFE tape liner on both sides + continuously woven layer of filament glass fiber encapsulated in a high temperature epoxy resin


Market applications

Technical specifications

  • General

    Maximum load, p
    - Static 140 20,000 N/mm2 psi
    - Dynamic 140 20,000 N/mm2 psi
    Operating Temperature
    - Min -195 -320 °C °F
    - Max 175 350 °C °F
    Maximum sliding speed, U 0.5 100 m/s fpm
    Maximum pU factor 1.23 35,000 N/mm² x m/s psi x fpm
    Coefficient of friction, f 0.02-0.12* 0.02-0.12* μ μ
    Shaft surface roughness, Ra ≤ 0.4 ≤ 16 µm µin
    Shaft surface hardness > 200 > 200 HB HB
    For Superior Performance Value
    Oil Lubricated HPF
    Grease Lubricated DX
    Process Fluid Lubricated HPF

* Depending on operating conditions

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