Page 488 - IGUS Bearing

iglidur Q3E iglidur Q3E
®
®
+100°C +100°C
135MPa 135MPa
Bearing technology | Plain bearings | iglidur Q3E Technical data
®
General properties Testing method

Density g/cm³ 1.46-1.69 -30 °C up to
Ø Colour sliding layer black +100 °C
20.0-60.0mm
Colour supporting layer black
Max. moisture absorption at +23°C/50% r.h. % weight 1.5 DIN 53495
Max. moisture absorption % weight 5.0 135MPa
Coefficient of friction, dynamic, against steel µ 0.22-0.42
Also available
as: pv value, max. (dry) MPa · m/s 0.70
Cost-effective heavy-duty bearing Mechanical properties MPa n.s. DIN 53457
Flexural modulus
Robust and dimensionally stable Flexural strength at +20°C 171) MPa 235 DIN 53452
Bar stock, Compressive strength MPa n.s.
round bar
Page 743 Max. permissible surface pressure (+20°C) MPa 135
With extreme loads, even high-tech polymers reach their limits. Therefore iglidur Q3E offers a completely
®
new multi-component design and is able to carry even extreme loads. In addition, thanks to optimised Shore D hardness 80 DIN 53505
injection moulding technology, it is more cost-effective than comparable fibre composites. Physical and thermal properties FOOD
● Lubrication-free Max. application temperature long-term °C +100
● Wear-resistant up to 130MPa dynamic load Max. application temperature short-term °C +140
Bar stock, ● Resistant to dirt Min. application temperature °C -30
plate
Page 773 ● Corrosion-free Thermal conductivity n.s.
Coefficient of thermal expansion n.s.
Typical application areas Electrical properties
● Agricultural machinery Specific transitional resistance Ωcm > 10 12 DIN IEC 93
● Construction machinery industry Surface resistance Ω > 10 12 DIN 53482
tribo-tape liner ● Utility and construction vehicles 171) Valid for the outer shell of the bearing
Page 781 ● Hoisting technology Table 01: Material properties

The iglidur Q3E plain bearings defy dirt at the heaviest Mechanical properties
®
loads due to their robust design. With increasing temperatures, the compressive strength of
iglidur Q3E plain bearings decreases. Diagram 02 shows
®
Moisture absorption this inverse relationship. The maximum recommended
Guide rings
®
Page 641 The humidity absorption of iglidur Q3E bearings amounts surface pressure is a mechanical material parameter. No
to about 1.5% weight in standard climatic conditions. The conclusions regarding the tribological properties can be
Descriptive technical specifications saturation limit submerged in water is 5.0% weight. This drawn from this.
Wear resistance at +23°C – + must be taken into account for these types of applications. Diagram 03 shows the elastic deformation of iglidur Q3E
®
at radial loads.
Wear resistance at +90°C – +
Vacuum Surface pressure, page 45
Two hole Wear resistance at +150°C – + In vacuum, any present moisture is released as vapour.
flange
bearings The use in vacuum is only possible to a limited extent. Permissible surface speeds
Page 667 Slide property – +
Typical applications for iglidur Q3E plain bearings are
®
Wear resistance under water – + Radiation resistance pivoting movements under high loads at comparatively
Plain bearings made from iglidur Q3E are resistant up to low speeds. However, relatively high speeds are still
®
Media resistance – +
a radiation intensity of 3 · 10² Gy. attainable. The speeds stated in table 03 are limit values for
Moulded Resistant to edge pressures – + the lowest bearing loads. With higher loads, the permitted
special parts Resistance to weathering speed drops with the extent of the load due to the
Page 696 Resistant to shock and impact loads – +
®
iglidur Q3E plain bearings have not yet been tested for limitations by the pv value.
Dirt resistance – + their resistance to weathering. Please consult igus if Surface speed, page 48
®
you're planning to use them outdoors.

®
igubal Online product finder Online service life calculation
spherical balls
Page 993 www.igus-asean.com/iglidur-finder www.igus-asean.com/iglidur-expert ASEAN 09/2023 ASEAN 09/2023
486 3D-CAD, finder and service life calculation ... www.igus-asean.com/Q3E Lubrication-free made easy ... from stock ... no minimum order quantity 487