Page 254 - IGUS Bearing

iglidur R iglidur R
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+90°C +90°C
23MPa 23MPa
Bearing technology | Plain bearings | iglidur R Technical data
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General properties Testing method

Density g/cm³ 1.39 -50°C up to
Ø Colour dark red +90°C
2.0-35.0mm
Max. moisture absorption at +23°C/50% r.h. % weight 0.2 DIN 53495
Max. moisture absorption % weight 1.1
Coefficient of friction, dynamic, against steel µ 0.09-0.25 23MPa
pv value, max. (dry) MPa · m/s 0.27
Also available
as: Mechanical properties
Low-cost Flexural modulus MPa 1,950 DIN 53457
Flexural strength at +20°C
70
DIN 53452
MPa
Abrasion-resistant Compressive strength MPa 68
Bar stock, Max. permissible surface pressure (+20°C) MPa 23
round bar
Page 743 Shore D hardness 77 DIN 53505
Low-cost material with low coefficient of friction and good wear resistance at low to medium loads.
● High wear resistance Physical and thermal properties
● Low coefficient of friction Max. application temperature long-term °C +90 FOOD
● Cost-effective Max. application temperature short-term °C +110
● Low moisture absorption Min. application temperature °C -50
Bar stock, ● Lubrication-free Thermal conductivity W/m · K 0.25 ASTM C 177
plate -1 -5
Page 773 ● Maintenance-free Coefficient of thermal expansion (at +23°C) K · 10 11 DIN 53752
Electrical properties
Typical application areas Specific transitional resistance Ωcm > 10 12 DIN IEC 93
● Sports and leisure Surface resistance Ω > 10 12 DIN 53482
● Model making Table 01: Material properties
tribo-tape liner ● Furniture industry
Page 781 ● Mechatronics The development of the iglidur R as a bearing material Resistance to weathering
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focused on high performance and very low cost. Especially iglidur R plain bearings are resistant to weathering. The
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in the dry operation, low coefficient of friction and wear material properties are slightly affected. Discolouration
were to be achieved. Plain bearings made from iglidur R occurs.
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are supported by a combination of solid lubricants. The
PTFE and silicon-free material achieves extremely low Mechanical properties
Guide rings
Page 641 coefficient of friction in dry operation and runs largely free With increasing temperatures, the compressive strength
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of stick-slip effects. of iglidur R plain bearings decreases. Diagram 02 shows
Descriptive technical specifications this inverse relationship. The maximum recommended
Wear resistance at +23°C – + Moisture absorption surface pressure is a mechanical material parameter. No
The moisture absorption of iglidur R plain bearings in conclusions regarding the tribological properties can be
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Wear resistance at +90°C – +
ambient conditions is approximately 0.2% weight. The drawn from this.
Two hole Wear resistance at +150°C – + saturation limit submerged in water is 1.1% weight. This Diagram 03 shows the elastic deformation of iglidur R
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flange
bearings must be taken into account for these types of applications. at radial loads. At the maximum recommended surface
Page 667 Slide property – +
pressure of 23MPa the deformation is about 4% at room
Wear resistance under water – + Vacuum temperature. A plastic deformation can be negligible up
In vacuum, any present moisture is released as vapour. to this value. However, it is also dependent on the service
Media resistance – +
The use in vacuum is only possible to a limited extent. time.
Moulded Resistant to edge pressures – + Surface pressure, page 45
special parts Radiation resistance
Page 696 Resistant to shock and impact loads – +
Plain bearings made from iglidur R are resistant up to a
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Dirt resistance – + radiation intensity of 3 · 10² Gy.

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252 3D-CAD, finder and service life calculation ... www.igus-asean.com/R Lubrication-free made easy ... from stock ... no minimum order quantity 253