MP-320 Polymer Bearings
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 -
OIL -
GREASE -
WATER -
PROCESS
FLUID
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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) |