MP-400

MP-400 bearing structure

MP-400 is a thermoplastic material with a wire of fibers mixed with solid lubricants. This product are developed for use underwater, in atmospheres with high humidity and it has a very low moisture absorption, good chemical resistant, high temperature resistance and high mechanical loading resistant. The MP-400 series includes cylindrical and flanged bearings as well as washers, and special parts are available on demand.

Operating Conditions

Dry

Oil

Grease

Water

Process fluid

Fair Good Good Very Good Good

Availability

Characteristics

  • Underwater applications
  • Low moisture absorption
  • Dry self-lubrications
  • Minimized wear and excellent service life
  • For high mechanical loading
  • For high temperature resistance
  • Good chemical resistant
  • Easy to assembly
  • Wide range of standard items available
  • Special items on demand

General Properties

Density 1,45 g/cm3 (DIN-53479 ASTM-D792)
Max moisture absorption in water at 24 h (23°C) 0,10 % (ISO-62)
Coefficient of sliding friction, dynamic 0,10 ÷ 0,21
P x V Value 1,40 N/mm2 (Dry)
Color Black

Mechanical properties

Tensile strength (23 °C) 130 N/mm2 (ISO-527)
Modulus of elasticity (23 °C) 16000 N/mm2 (ISO-527R)
Elongation at break (23 °C) 0,70% (ISO-527)
Izod – Impact strength (notched) (23 °C) 45 J/m (ASTM D256-A)
Charpy – Impact strength (unnotched) (23 °C) 20 Kj/m2 (ISO 179-1)
Charpy – Impact strength (notched) (23 °C) 4 Kj/m2 (ISO 179-1) 
Max surface speed (rotating) 1,0 m/s
Max surface speed (linear) 3 m/s
Max static surface pressure 90 N/mm2

Physical and thermal properties

Max long term application temperature +200°C
Min long term application temperature -40°C
Coefficient of thermal expansion (+30°C +100°C) 4 K-1 * 10-5 (DIN53752)

Electrical properties

Specific volume resistance >105cm (DIN53482)
Surface resistance >105cm (DIN53482)
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