Page 420 - IGUS Bearing

iglidur A500 iglidur A500
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+250°C +250°C
120MPa 120MPa
Bearing technology | Plain bearings | iglidur A500 Technical data
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General properties Testing method

Density g/cm³ 1.28 -100°C up to
Ø Colour brown +250°C
4.0-50.0mm
Max. moisture absorption at +23°C/50% r.h. % weight 0.3 DIN 53495
Max. moisture absorption % weight 0.5
Coefficient of friction, dynamic, against steel µ 0.26-0.41 120MPa
pv value, max. (dry) MPa · m/s 0.28
Also available
as: Mechanical properties
The media and temperature specialist in the Flexural modulus MPa 3,600 DIN 53457
Flexural strength at +20°C
140
DIN 53452
MPa
food sector Compressive strength MPa 118
Bar stock, Max. permissible surface pressure (+20°C) MPa 120
round bar Compliant with Regulation (EU) No. 10/2011 and
Page 743 Shore D hardness 83 DIN 53505
FDA guidelines Physical and thermal properties
Max. application temperature long-term °C +250
FOOD
Plain bearings made from iglidur A500 can be exposed to extremely high temperatures and are suitable Max. application temperature short-term °C +300
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for direct contact with food (FDA-compliant). Min. application temperature °C -100
Bar stock, ● Compliant with Regulation (EU) No. 10/2011 Thermal conductivity W/m · K 0.24 ASTM C 177
plate -1 -5
Page 773 ● FDA-compliant Coefficient of thermal expansion (at +23°C) K · 10 9 DIN 53752
● Temperature-resistant from -100°C to +250°C Electrical properties
● Chemical-resistant Specific transitional resistance Ωcm > 10 14 DIN IEC 93
● Lubrication-free Surface resistance Ω > 10 13 DIN 53482
● Maintenance-free Table 01: Material properties
tribo-tape liner
Page 781 Typical application areas Plain bearings made from iglidur A500 can be used at high Resistance to weathering
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● Food industry temperatures and are permitted for use in direct contact iglidur A500 plain bearings are resistant to weathering.
● Beverage technology with food (FDA-compliant). They exhibit an exceptionally The material properties are significantly affected.
● Medical technology good chemical resistance and are suitable for heavy-duty Discolouration occurs. Practical tests under real application
use in and around machinery for the food industry. Though conditions are strongly recommended.
iglidur A500 is a soft material, it possesses an excellent
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Guide rings
Page 641 compressive strength even at high temperatures. Mechanical properties
When temperatures increase, the compressive strength of
Descriptive technical specifications Moisture absorption iglidur A500 plain bearings decreases. Diagram 02 shows
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Wear resistance at +23°C – + The moisture absorption of iglidur A500 plain bearings is this inverse relationship. The maximum recommended
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only 0.5% weight after saturation in water. surface pressure is a mechanical material parameter. No
Wear resistance at +90°C – +
conclusions regarding the tribological properties can be
Two hole Wear resistance at +150°C – + Vacuum drawn from this.
flange
bearings In vacuum, any present moisture is released as vapour. Diagram 02 shows the maximum recommended surface
Page 667 Slide property – +
The use in vacuum is only possible to a limited extent. pressure of the bearing as a function of the temperature.
Wear resistance under water – + The combination of high stability and high flexibility acts
Radiation resistance very positively during vibrations and edge loads. As the
Media resistance – +
Plain bearings made from iglidur A500 are resistant up to wear of the plain bearing rapidly escalates from pressures
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Moulded Resistant to edge pressures – + a radiation intensity of 2 · 10⁵ Gy. of 10 to 20MPa, we recommend a particularly accurate
special parts testing of the application above these limits.
Page 696 Resistant to shock and impact loads – +
Surface pressure, page 45
Dirt resistance – +

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