Page 247 - IGUS Bearing

iglidur L500 iglidur L500
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+250°C +250°C
70MPa 70MPa
Bearing technology | Plain bearings | iglidur L500 Technical data
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General properties Testing method

Density g/cm³ 1.53 -100°C up to
Ø Colour black +250°C
3.0-10.0mm
Max. moisture absorption at +23°C/50% r.h. % weight 0.1 DIN 53495
Max. moisture absorption % weight 0.3
Coefficient of friction, dynamic, against steel µ 0.08-0.15 70MPa
pv value, max. (dry) MPa · m/s 4.00
Also available
as: Mechanical properties
For extreme rotational speeds Flexural modulus MPa 12,015 DIN 53457
201
DIN 53452
Flexural strength at +20°C
MPa
Temperature-resistant and media-resistant Compressive strength MPa 70
Bar stock, Max. permissible surface pressure (+20°C) MPa 70
round bar
Page 743 Shore D hardness 81 DIN 53505
Specially developed for fast continuous operation under low loads, iglidur L500, inter alia, is intended
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for fan and electric motor applications. Physical and thermal properties
● Temperature-resistant up to +250°C Max. application temperature long-term °C +250 FOOD
● For rotational movements with surface speeds up to 5m/s Max. application temperature short-term °C +315
● Very wear-resistant Min. application temperature °C -100
Bar stock, ● Low moisture absorption Thermal conductivity W/m · K 0.45 ASTM C 177
plate -1 -5
Page 773 ● Low thermal expansion Coefficient of thermal expansion (at +23°C) K · 10 6 DIN 53752
● Lubrication-free Electrical properties
● Maintenance-free Specific transitional resistance Ωcm > 10 10 DIN IEC 93
Surface resistance Ω > 10 12 DIN 53482
Typical application areas Table 01: Material properties
tribo-tape liner ● Cooling fans
Page 781 ● Electric motors iglidur L500 is a plain bearing material for high speeds Resistance to weathering
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● Fans, etc. and fast sliding movements with low loads. Due to the low iglidur L500 plain bearings are continuously resistant
thermal expansion and low moisture absorption, bearings to weathering. The material properties are only slightly
can be manufactured with very little clearance. Applications affected. Possible discolourations are only superficial.
which feature these advantages are fans, small motors,
fast-running sensors or the magnet technology. Mechanical properties
Guide rings
Page 641 When temperatures increase, the compressive strength of
Moisture absorption iglidur L500 plain bearings decreases. Diagram 02 shows
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Descriptive technical specifications The very low moisture absorption of 0.1% weight in this inverse relationship. The maximum recommended
Wear resistance at +23°C – + standard climatic conditions and 1.4% weight at maximum surface pressure is a mechanical material parameter. No
water absorption also enables continuous operation in high conclusions regarding the tribological properties can be
Wear resistance at +90°C – +
humidity or in liquid media. drawn from this.
Two hole Wear resistance at +150°C – + Diagram 03 shows the elastic deformation of iglidur L500
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flange
bearings Vacuum under different loads. At the recommended maximum
Page 667 Slide property – +
In vacuum, any present moisture is released as vapour. surface pressure of 70MPa the deformation is less than
Wear resistance under water – + The use in vacuum is generally possible. 2.5% at room temperature. A plastic deformation can be
negligible up to this value. It is however also dependent
Media resistance – +
Radiation resistance on the duty cycle of the load.
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Moulded Resistant to edge pressures – + Plain bearings made from iglidur L500 are resistant up to Surface pressure, page 45
special parts a radiation intensity of 3 · 10² Gy. Higher radiation weakens
Page 696 Resistant to shock and impact loads – +
the material and may result in a significant decrease in
Dirt resistance – + mechanical properties.

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