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Solid self-lubricating sliding bearing, manufactured by sintering technique

Technical details GAP-MET® / M

  • Solid self-lubricating sliding bearing
  • maintenance-free
  • High-compressed with evenly embedded solid lubricant
  • Can be machined
  • Available with cleaning grooves on request


  • High load capacity and stability, for all slow movements, unsusceptible to dirt, no moisture absorption, good chemical resistance, good to very good temperature resistance


  • CuSn – or FeNiCu – alloys* …please bear in mind that from 2017 we use only lead-free alloys for the production of this bushings.
  • Support material Bronze with smoothly dispersed graphite incorporated in the matrix*
  • Sliding layer CuSn / CuSnPb alloys**; Shake down layer: Graphite film (optional)

Material properties

  • Specific load capacity static ≤ 250 [N/mm2]
  • Specific load capacity dynamic ≤ 130 [N/mm2]
  • Sliding speed < 0.5 [m/s] dry
  • Friction value ** 0.1 [µ] to 0.2 [µ]
  • Temperature strain – 50 [°C] to +350 [°C] +650°C possible
  • Max. PV-value 1.5 [N/mm² x m/s] dry

Tolerance details

  • Housing Ø H7
  • Bushing inner-Ø after mounting According to customer´s specification: D8/H8/H9
  • Shaft tolerance According to customer´s specification: d7/e7/f7/h7

Shaft material

  • Hardened steel > 180 HB, surface roughness Rz ≤ 4

Mounting advise

  • Housing: Mounting bevel min. 1.5mm x 15-45°
  • Shaft: Mounting bevel 5 mm x 15°, edges rounded
  • The application of an adequate force fitting mandrel is advisable. Grease lubrication of the outer surface may be necessary when mounting.


  • GAP-MET®/M is a maintenance-free sliding bearing. An additional oil or grease lubrication is applicable.

Range of application

  • Steel and steel construction engineering, wheel molds, machines for beverages, steel mill facility


* Other alloys are available on request

** The above stated material properties are valid for optimal operating conditions. Through changes of the application conditions, eg. higher sliding speed or strain, these values are subject to change