MU-J Self-Lubricated Bearings

MU-J Technymon self-lubricated cylindrical bearing for oil and gas

Multilayer bushing (dry/lubricated Sliding Bearings) MU-J bearings are self lubricated material, derivate by Mu bearings, and are a three layer composite product.The Sliding layer in PTFE is applied with a special treatment and technique directly on a Bronze layer.

High wear options in oil media for hydraulic application and shock absorbers include material with special wear resistant fillers.

Sliding layer avialble with different colours.

  • PTFE Modified antifriction surface layer 20 μm (Aprox)
  • Porous bronze layer 0,19- 0,34 mm thickness.
  • Low carbon steel supporting strip 0,50 - 2,70 mm thick depending on the size of the bush. The steel is plated for corrosion protection.

Operating Conditions

  • dry condition icon
    DRY Very Good
  • dry condition icon
    OIL Very Good
  • dry condition icon
    GREASE Fair
  • dry condition icon
    WATER Fair
  • dry condition icon

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Structure of the composite material

Layer Average analyses of the material Thickness of layer
Sliding layer PTFE Modified + Fillers 15 - 25 μm
  • (Average Peak)
Intermediate layer CuSn11 Sintered 190 - 340 μm
  • (Average Peak)
Connecting layer Cu 1 - 3 μm
Supporting shell
  • Low Carbon Steel (EN 10139)
  • Bronze CuSn8P
  • Stainless Steel - 316 L
0,50 - 2,70 mm
  • (Depending on Dim. of the Bearing)
Protective Layer Sn or Zn > 1 μm


  • Fluids like oil or water permit higher PV factors;
  • Friction factor not affected by “stick - slip” effect;
  • Higher Chemical resistance to industrial fluids and gases (we recommend previous test for new application / project);
  • Volume resistivity could be > 10 ohm, but completely depends on surface contact in assembly.

Technical Data

Maximum Specific Load Static 150 - 300 N/mm2 (29000 psi)
Maximum Specific Load Dynamic 10 N/mm2 (1451 psi)
Service Temperature Minimum -200°C (-328°F)
Service Temperature Maximum +180°C (+356°F)
Maximum Sliding Speed Dry 1 m/s
Maximum Sliding Speed Oil 2.5 m/s
Coefficient of Friction Dry 0.020 - 0.150


Shapes and Geometries

The shape and geometry of every Technymon Bearing is designed to fit its specific application. We pay careful attention to the desired outcome, including crucial factors such as the clearance or interference fit with the mating components.

The shape of bearing can vary greatly, with characteristics such as spherical shapes washers and holes being customized to enhance the overall performance of the application.

Contact Us

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  • Technymon Srl

    Sede Legale: 24060 Castelli Calepio (BG) - Viale Industria, 11/13

    +39 035 847 781
  • Himon Srl

    Sede Legale: Viale Industria, 11/13 - 24060 Castelli Calepio (BG).

    Sede Produttiva: Via Leonardo Da Vinci, 16 - 24064 Grumello Del Monte (BG).

    +39 331 665 39 56
  • Technymon Gleitlager Gmbh

    Im Gotthelf 5e 65795 Hattersheim/Eddersheim

    +49 (0) 6145-54600
  • Technymon Technology India PVT LTD

    Ambethan road Kharabwadi,Chakan, Pune - 410 501 INDIA

    +91 2135 645371
  • Technymon Technology USA inc

    730 N Edgewood Ave, Wood Dale, IL 60191 (U.S.A.)

    (630) 787 05 01
the world map with Technymon location markers

Sede Legale: 24060 Castelli Calepio (BG) - Viale Industria, 11/13

Tel. 035.847781 r.a. – Fax 035.847711

Cap. Soc. 50.000,00 € i.v. - REA BG445578 - Reg. Imp. BG 04222050165

Codice Fiscale & Partita Iva 04222050165 - Codice ISO IT04222050165


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