Page 304 - IGUS Bearing

iglidur Z iglidur Z
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+250°C +250°C
150MPa 150MPa
Bearing technology | Plain bearings | iglidur Z Technical data
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General properties Testing method

Density g/cm³ 1.40 -100°C up to
Ø Colour brown +250°C
4.0-120.0mm
Max. moisture absorption at +23°C/50% r.h. % weight 0.3 DIN 53495
Max. moisture absorption % weight 1.1
Coefficient of friction, dynamic, against steel µ 0.06-0.14 150MPa
pv value, max. (dry) MPa · m/s 0.84
Also available
as: Mechanical properties
Long service life under extreme conditions Flexural modulus MPa 2,400 DIN 53457
DIN 53452
95
MPa
Flexural strength at +20°C
Resistant to wear and impact even at high loads Compressive strength MPa 65
Bar stock, Max. permissible surface pressure (+20°C) MPa 150
round bar and temperatures
Page 743 Shore D hardness 81 DIN 53505
Physical and thermal properties
Extremely high compressive strength coupled with high flexibility enables iglidur Z bearings to attain Max. application temperature long-term °C +250
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their prominent properties in association with soft shafts, edge loads and impacts. At the same time the Max. application temperature short-term °C +310 FOOD
bearings suitable for temperatures up to +250°C. Min. application temperature °C -100

Bar stock, ● Excellent wear resistance especially with high loads Thermal conductivity W/m · K 0.62 ASTM C 177
plate ● High temperature resistance -1 -5
Page 773 Coefficient of thermal expansion (at +23°C) K · 10 4 DIN 53752
● Suitable for very high loads Electrical properties
● Suitable for high surface speeds Specific transitional resistance Ωcm > 10 11 DIN IEC 93
● Suitable for high edge pressures Surface resistance Ω > 10 11 DIN 53482
● Lubrication-free Table 01: Material properties
● Maintenance-free
tribo-tape liner
Page 781 In addition to iglidur X, iglidur Z is among the best-selling Resistance to weathering
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Typical application areas iglidur high-temperature materials. Specifically worth iglidur Z plain bearings are continuously resistant to
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● Construction machinery industry noting is the outstanding wear behaviour under extreme weathering. The material properties are only slightly
● Mechanical engineering conditions (high loads and temperatures). affected. Possible discolourations are only superficial.
● Textile industry
● Aerospace engineering Moisture absorption Mechanical properties
Guide rings ● Glass industry
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Page 641 The moisture absorption of iglidur Z plain bearings in With increasing temperatures, the compressive strength
ambient conditions is approximately 0.3% weight. The of iglidur Z plain bearings decreases. Diagram 02 shows
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Descriptive technical specifications saturation limit submerged in water is 1.1% weight. this inverse relationship. The maximum recommended
Wear resistance at +23°C – + surface pressure is a mechanical material parameter. No
Vacuum conclusions regarding the tribological properties can be
Wear resistance at +90°C – +
In vacuum, any present moisture is released as vapour. drawn from this.
Two hole Wear resistance at +150°C – + Use in vacuum is only possible with dehumidified iglidur Z iglidur Z is suitable for both medium and - due to its
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flange
bearings bearings. high heat resistance - high speeds. Diagram 03 shows
Page 667 Slide property – +
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the elastic deformation of iglidur Z at radial loads. At the
Wear resistance under water – + Radiation resistance maximum recommended surface pressure of 23MPa the
Plain bearings made from iglidur Z are resistant up to a deformation is about 5.5% at room temperature.
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Media resistance – +
radiation intensity of 1 · 10⁵ Gy. Surface pressure, page 45
Moulded Resistant to edge pressures – +
special parts
Page 696 Resistant to shock and impact loads – +
Dirt resistance - +

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302 3D-CAD, finder and service life calculation ... www.igus-asean.com/Z Lubrication-free made easy ... from stock ... no minimum order quantity 303