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GLYCO® 298

Key Features

  • Maintenance-free operation lubrication for use under severe fluid lubricated conditions
  • High pv-value
  • High wear resistance
  • High load capacity
  • Low friction
  • Rotating, oscillating and axial motion possible
  • Wide range of part design types

For some applications, e.g. shock absorbers or pumps operating with lubrication through oil or other fluids at higher load, maintenance free bearings extended service life is needed.

GLYCO® 298 is a three layer composite material. A porous tin bronze sinter structure is applied on a steel back. This layer is impregnated with a PTFE sliding material and a specific combination of fillers especially chosen to improve the performance of this material under fluid lubrication conditions.

On the top of this filled bronze structure, a 10 to 30 μm thick overlay of the same sliding material is applied, providing a smooth surface for the application. 

GLYCO® 298 sliding bearings are therefore showing low friction and improved wear resistance against flow delamination and cavitation under lubricated operation compared to other standard PTFE-based materials.

In addition, this material is providing in case of requirement for start/stop operating conditions clearly better results than conventional materials.


Microsection GLYCO® 298 according to ISO 3547 type P1


1PTFE with additives
2Tin bronze
3Steel back
4Tin layer (optional)


Technical Data

PropertiesGLYCO® 298
Material typePTFE based according to ISO 3547 type P1
CompositionSteel back with sintered layer of tin bronze. Pore filling and cover layer (10 to 30 µm/0.00039 in to 0.00118 in) of PTFE with additives
ApplicationOptimised material for shock absorbers.
Automotive fluid lubricated systems like shock absorbers, transmissions, various pumps and compressors systems.
Permissible stat. specific load250 MPa
Permissible dyn. specific load100 MPa
Maximum sliding velocity 10 m/s (oiled)
Operating temperature-200 to 260 °C
Coefficient of friction0.02 to 0.07 (greased)
Wear layer thickness (min.)0.2 mm / 0.0079 in
Wear resistance
Load capacity
Ability to support edge loads (resulting from misalignment)standard
Ability to embed dirt and foreign particlesstandard
Ability to carry alternating loadsgood
Ability to accommodate linear movementstandard
Machining of sliding surface after mountingcalibration
Technical sheet

Available Designs