DP4 low friction bushings offer good wear and low friction performance over a wide range of loads, speeds and temperatures in dry running conditions Very good performance in lubricated applications Good performance in greased applications Suitable for linear, oscillating and rotating movements Lead-free material compliant to EVL, WEEE, and RoHS specifications Approved to standard DIN EN 1797: 2002-02 and ISO 21010: 2004-04 (Cryogenic Vessels – Gas/Material Compatibility) for piping, valves, fittings and other components in both gaseous and liquid oxygen for up to maximum temperature of 60°C and oxygen pressure of 25 bars. Contact GGB for further details. Approved to standard FAR 25.853 and FAR 25.855 - Federal Aviation Regulations – making it suitable for interior aircraft applications

  • Sintered metal plain bearings
  • bearings

Product features

Maximum load, p Static N/mm 2 250
Operating temperature Min °C - 200
Coefficient of linear thermal expansion Parallel to the surface 10 -6/K 11
Normal to the surface 10 -6/K 30
Maximum sliding speed, U 2.5
Maximum pU factor N/mm 2 x m/s 1.0
Coefficient of friction 0.04 - 0.25 *
Maximum sliding speed, U 5.0
Maximum pU factor 10.0
Coefficient of friction 0.02 - 0.08
Shaft surface roughness, Ra Dry µm 0.3 - 0.5
Shaft surface hardness Unhardened acceptable, improved bearing life > 200HB

Additional product literature

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