Page 564 - IGUS Bearing

iglidur H4 iglidur H4
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+200°C +200°C
65MPa 65MPa
Bearing technology | Plain bearings | iglidur H4 Technical data
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General properties Testing method

Density g/cm³ 1.79 -40°C up to
Ø Colour brown +200°C
4.0-40.0mm
Max. moisture absorption at +23°C/50% r.h. % weight 0.1 DIN 53495
Max. moisture absorption % weight 0.2
Coefficient of friction, dynamic, against steel µ 0.08-0.25 65MPa
pv value, max. (dry) MPa · m/s 0.70
Also available
as: Mechanical properties
The automotive standard Flexural modulus MPa 7,500 DIN 53457
Flexural strength at +20°C
120
DIN 53452
MPa
Up to +200°C, media-resistant Compressive strength MPa 50
Bar stock, Max. permissible surface pressure (+20°C) MPa 65
round bar
Page 743 Shore D hardness 80 DIN 53505
Cost-effective high-temperature material with good dry-operation properties and "engine compartment
resistance". Physical and thermal properties
● Low coefficient of friction Max. application temperature long-term °C +200 FOOD
● High wear resistance Max. application temperature short-term °C +240
● Temperature-resistant from -40°C to +200°C Min. application temperature °C -40
Bar stock, ● Chemical-resistant Thermal conductivity W/m · K 0.24 ASTM C 177
plate -1 -5
Page 773 ● Lubrication-free Coefficient of thermal expansion (at +23°C) K · 10 5 DIN 53752
● Maintenance-free Electrical properties
Specific transitional resistance Ωcm > 10 13 DIN IEC 93
Typical application areas Surface resistance Ω > 10 12 DIN 53482
● Automotive industry Table 01: Material properties
tribo-tape liner ● Automation
Page 781 ● Packaging iglidur H4 plain bearings stand for high carrying capacity, Radiation resistance
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good abrasion resistance and good temperature Plain bearings made from iglidur H4 are resistant up to a
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resistance, besides the obvious economic factors. radiation intensity of 2 · 10² Gy.
Temperatures up to +200°C, permitted surface pressure
up to 65MPa, and excellent chemical resistance are only Resistance to weathering
some of the essential attributes. Solid lubricants reduce the iglidur H4 plain bearings are continuously resistant
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Guide rings
Page 641 coefficient of friction and support the wear resistance, which to weathering. The material properties are only slightly
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has been significantly improved compared to the iglidur H2 affected. Possible discolourations are only superficial.
Descriptive technical specifications plain bearings, which are also very cost-effective.
Wear resistance at +23°C – + iglidur H4 plain bearings are suitable for all sliding Mechanical properties
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surfaces. With increasing temperatures, the compressive strength of
Wear resistance at +90°C – +
iglidur H4 plain bearings decreases. Diagram 02 shows
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Two hole Wear resistance at +150°C – + Moisture absorption this inverse relationship. The maximum recommended
flange
bearings The moisture absorption of iglidur H4 plain bearings is surface pressure is a mechanical material parameter. No
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Page 667 Slide property – +
below 0.1% weight in ambient conditions. The saturation conclusions regarding the tribological properties can be
Wear resistance under water – + limit submerged in water is 0.2% weight. iglidur H4 is drawn from this.
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therefore an ideal material for wet environments. Diagram 03 shows the elastic deformation of iglidur H4
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Media resistance – +
at radial loads.
Moulded Resistant to edge pressures – + Vacuum Surface pressure, page 45
special parts In vacuum, any present moisture is released as vapour.
Page 696 Resistant to shock and impact loads – +
The use in vacuum is generally possible.
Dirt resistance – +

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562 3D-CAD, finder and service life calculation ... www.igus-asean.com/H4 Lubrication-free made easy ... from stock ... no minimum order quantity 563