MP-320 Polymer Bearings

MP-320 Technymon polymer cylindrical bearing

MP-320 is a thermoplastic material with a wire of fibers. This product is electrically conductive e it has good chemical resistance and good resistance to high loads. The MP-320 series includes cylindrical and flanged bearings as well as washers, and special items are available on demand.

Operating Conditions

  • dry condition icon
    DRY 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 MP-320 bearing preview
composite layers of MP-320 bearing

Characteristics

  • Electrically conductive
  • Good chemical resistance
  • For high static loads
  • Easy to assembly
  • Wide range of standard items available
  • Special items on demand

General Properties

Density 1,29 g/cm3 (DIN-53479 ASTM-D792)
Max moisture absorption in water at 24 h (23°C) 1,80 % (ISO-62)
Coefficient of sliding friction, dynamic 0,10 ÷ 0,40
P x V Value 0,34 N/mm2 (Dry)
Color Black

Mechanical properties

Tensile strength (23 °C) 260 N/mm2 (ISO-527)
Modulus of elasticity (23 °C) 11600 N/mm2 (ISO-527R)
Elongation at break (23 °C) 5% (ISO-527)
Izod – Impact strength (notched) (23 °C) 65 J/m (ASTM D256-A)
Charpy – Impact strength (unnotched) (23 °C) 30 Kj/m2 (ISO 179-1)
Charpy – Impact strength (notched) (23 °C) 8 Kj/m2 (ISO 179-1) 
Max surface speed (rotating) 0,80 m/s
Max surface speed (linear) 3 m/s
Max static surface pressure 105 N/mm2

Physical and thermal properties

Max long term application temperature +140°C
Min long term application temperature -40°C
Coefficient of thermal expansion (+30°C +100°C) 2 K-1 * 10-5 (DIN53752)

Electrical properties

Specific volume resistance >103cm (DIN53482)
Surface resistance >102cm (DIN53482)

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