MR-5 Self-Lubricated Bearings

MR-5 Technymon self-lubricated flange bearing

The MR-5 trademark identifies a range of bearings composed material of compounded PTFE (polytetrafluoroethylene) tape on a metal shell (steel). The tape of PTFE contains carbon and graphite (without lead, complying with the European Parliament’s “ELV” directive 2000/53/Ec), that give at the material self lubricating, isolates noise and is designed for obtain self lubricated bearings without play.

The available products are cylindrical and flanged bearings, washers, belts and cast-to-size parts with thickness standard is from 0,500 / 0,750 and 1,000 mm.

Operating Conditions

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

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composite layers of MR-5 bearing preview
composite layers of MR-5 bearing

Structure of the composite material

Layer Average analyses of the material Thickness of layer
Sliding layer PTFE Modified 0,150 ÷ 0,170 mm
Supporting shell DC 04 (EN 10139)
  • Cu = 0,060 Max
  • Mn = 0,15 ÷ 0,32
  • P = 0,025 Max
  • S = 0,030 Max
  • Al = 0,028 ÷ 0,070
0,250 ÷ 0,750 mm
  • (Depending on final thickness required)
Protective layer Zn 2 ÷ 15 μm

Characteristics

  • High load capacity
  • Easy mounting
  • Sizing assembly (zero-clearance)
  • High thermal conductivity
  • Wide range of service temperatures
  • Extremely thin wall bearings
  • No maintenance
  • Special items available on demand
  • High formability
  • Special items available on demand

Technical Data

Maximum Specific Load Static 200 N/mm2 (29000 PSI)
Maximum Specific Load Dynamic 150 N/mm2 (21800 PSI)
Maximum Speed 1,5 m/s (300 fpm)
Service Temperature Minimum -200°C (-328°F)
Service Temperature Maximum +180°C (+356°F)
Service Temperature Intermittent +260°C (+500°F)
Coefficient of Friction 0,05 ÷ 0,15 μ
Maximum Dry Load Factor 1,8 N/mm2 * m/s
Volume Resistivity ASTM D257 103 Ωc/m

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GLOBAL BEARING TECHNOLOGIES S.R.L.

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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