Technopolymer bushing, Digidur Type W
Color code: yellow 
Description
Didgidur Type W is a selflubricating bushing especially produced to perform "long life" (an extended lifespan during normal conditions). Type W is also well suited for "soft shafts". Low friction coefficient as well as low absorption from fluids. Good "wear and tear" ability. Best suited for low- to medium- loads. It's main characteristica is, however, to perform "long life".
General properties
Density, g/cm3 1,24
Color: yellow
Max. moisture absorption at 23°C / 50 % RH, % weight: 1,3
Max. moisture absorption, % weight: 6,5
Friction coefficient, dynamic, against steel (µ): 0,08-0,23
p • v value, max. (dry), Mpa • m/s: 0,23
Mechanical properties
Modulus of elasticity, MPa: 3500
Tensile strength vid 20°C, Mpa: 125
Compressive strength, MPa: 61
Max. permissible staticsurface pressure at 20 °C, MPa: 60
Max. speed, rotating movement: 1,5 m/s
Max. speed, linear movement: 5,0 m/s
Shore-D hardness: 77
Physical and thermal properties
Max.temperature, long range, °C: +90°C
Max.temperatur, short range, °C: +180°C
Min. temperature, °C: -40°C
Thermal conductivity (W/m • K): 0,24
Coefficient by thermal expansion (at 23°C), (K-1 • 10-5): 9
Electrical properties
Specific volume resistance, Ω cm: > 10
Surface resistance, Ω: > 10
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