Page 178 - IGUS Bearing

iglidur W300 iglidur W300
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+90°C +90°C
60MPa 60MPa
Bearing technology | Plain bearings | iglidur W300 Technical data
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General properties Testing method

Density g/cm³ 1.24 -40°C up to
Ø Colour yellow +90°C
2.0-120.0mm
Max. moisture absorption at +23°C/50% r.h. % weight 1.3 DIN 53495
Max. moisture absorption % weight 6.5
Coefficient of friction, dynamic, against steel µ 0.08 -0.23 60MPa
pv value, max. (dry) MPa · m/s 0.23
Also available
as: Mechanical properties
The classic endurance runner up to 30MPa Flexural modulus MPa 3,500 DIN 53457
125
DIN 53452
Flexural strength at +20°C
MPa
Excellent wear resistance on (virtually) all shafts Compressive strength MPa 61
Bar stock, Max. permissible surface pressure (+20°C) MPa 60
round bar
Page 743 Shore D hardness 77 DIN 53505
iglidur W300 gives excellent wear resistance, even in harsh environments or when used with rough shafts.
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Of all iglidur materials, iglidur W300 is the most resistant to these conditions. Physical and thermal properties
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● Over 400 sizes available from stock Max. application temperature long-term °C +90 FOOD
● Very long service life Max. application temperature short-term °C +180
● Low coefficient of friction Min. application temperature °C -40
Bar stock, ● Low coefficient of friction Thermal conductivity W/m · K 0.24 ASTM C 177
plate -1 -5
Page 773 ● Very wear-resistant Coefficient of thermal expansion (at +23°C) K · 10 9 DIN 53752
● Suitable for applications with soft shafts Electrical properties
● Lubrication-free Specific transitional resistance Ωcm > 10 13 DIN IEC 93
● Maintenance-free Surface resistance Ω > 10 12 DIN 53482
Table 01: Material properties
tribo-tape liner Typical application areas
Page 781 ● Automation iglidur W300 gives excellent wear resistance, even in Resistance to weathering
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● Printing industry harsh environments or when used with rough shafts. This iglidur W300 plain bearings have limited resistance
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● Woodworking material is the most tolerant of these external effects out to weathering. The material properties are affected.
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● Mechatronics of all the iglidur range. Discolouration occurs. Practical tests under real application
● Test engineering and quality assurance conditions are recommended.
Moisture absorption
Guide rings
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Page 641 The moisture absorption of iglidur W300 plain bearings Mechanical properties
in ambient conditions is approximately 1.3% weight. The When temperatures increase, the compressive strength of
Descriptive technical specifications saturation limit submerged in water is 6.5% weight. This iglidur W300 plain bearings decreases. Diagram 02 shows
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Wear resistance at +23°C – + must be taken into account for these types of applications. this inverse relationship. The maximum recommended
surface pressure is a mechanical material parameter. No
Wear resistance at +90°C – +
Vacuum conclusions regarding the tribological properties can be
Two hole Wear resistance at +150°C – + In vacuum, any present moisture is released as vapour. drawn from this.
flange
bearings The use in vacuum is only possible to a limited extent. iglidur W300 shows a very high compressive strength
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Page 667 Slide property – +
despite high elasticity. Diagram 03 shows the elastic
Wear resistance under water – + Radiation resistance deformation of iglidur W300 at radial loads. At the
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Plain bearings made from iglidur W300 are resistant up maximum recommended surface pressure of 60MPa,
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Media resistance – +
to a radiation intensity of 3 · 10² Gy. the deformation is less than 3%.
Moulded Resistant to edge pressures – + Surface pressure, page 45
special parts
Page 696 Resistant to shock and impact loads – +
Dirt resistance – +

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spherical balls
Page 845 www.igus-asean.com/iglidur-finder www.igus-asean.com/iglidur-expert ASEAN 09/2023 ASEAN 09/2023
176 3D-CAD, finder and service life calculation ... www.igus-asean.com/W300 Lubrication-free made easy ... from stock ... no minimum order quantity 177