Page 489 - IGUS Bearing
P. 489

iglidur  Q3E                                                                                                                                                                                                            iglidur  Q3E
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         +100°C                                                                                                                                                                                                                   +100°C
         135MPa                                                                                                                                                                                                                   135MPa
                      Bearing technology | Plain bearings | iglidur  Q3E                                                            Technical data
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                                                                                                                                      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
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                      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
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                                                                                                                                    loads due to their robust design.                  With increasing temperatures, the compressive strength of
                                                                                                                                                                                       iglidur  Q3E plain bearings decreases. Diagram 02 shows
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                                                                                                                                    Moisture absorption                                this inverse relationship. The maximum recommended
          Guide rings
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          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
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                                                                                                                                                                                       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
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                       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
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                       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          –                       +
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                                                                                                                                    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
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                                                                                                                                    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
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