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GLYCO® 393

Key Features

  • Advanced machinable dry bearing material for high loads and precision requirements
  • Thermoplastic based material for high load capacity and wear resistance under lubricated and non lubricated conditions.
  • High PTFE content for significant friction reduction and for allowing use in unlubricated applications
  • Best in class material in performance and enabling of multiple application cases (dry, greased, oiled, machining after assembly). 

A high number of fluid lubricated applications need to be fit with self lubricating composite material bushings due to mixed friction conditions.

Increasing precision requirements (reduced misalignment or shaft clearance) needs to be achieved.

Increased specific loads are placed on the bearings.

GLYCO® 393 is a three layer composite material. A porous tin bronze sinter structure is applied on a steel back, which is impregnated with a PPS sliding material with friction improving and wear reducing additives. An overlay of the same sliding material is located above the filled bronze structure.

Surface roughness of Rz = 4 – 6 µm achievable through machining of the top layer with the proper process parameter (3000 – 5000 rpm, feed rate of 0,02 mm/rpm) and optimized tool.


Microsection GLYCO® 393 according to ISO 3547 type P2


1PPS, PTFE and addtives
2Tin bronze
3Steel back
4Tin layer (optional)


Technical Data

PropertiesGLYCO® 393
Material typeThermoplastic based according to ISO 3547 type P2
CompositionSteel back with sintered layer of tin bronze. Pore filling and cover layer (0.250 and 0.350 mm) of PPS, PTFE with additives, machineable
ApplicationPumps, transmission, compressors, utility vehicles, etc.
Other applications with risk of high bearing wear
Permissible stat. specific load250 MPa
Permissible dyn. specific load120 MPa
Maximum sliding velocity 2 m/s (dry running)
2 m/s (greased)
10 m/s (oiled)
Operating temperature-40 to 220 °C
Coefficient of friction0.03 to 0.10 (dry running and greased)
Wear layer thickness (min.)
Wear resistance
Load capacity
Ability to support edge loads (resulting from misalignment)good
Ability to embed dirt and foreign particlesgood
Ability to carry alternating loadsgood
Ability to accommodate linear movementgood
Machining of sliding surface after mountingline boring, turning
Technical sheet

Available Designs