Page 275 - IGUS Bearing
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iglidur  E7                                                                                                                                                                                                              iglidur  E7
             ®
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          +70°C                                                                                                                                                                                                                   +70°C
          18MPa                                                                                                                                                                                                                   18MPa
                      Bearing technology | Plain bearings | iglidur  E7                                                             Technical data
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                                                                                                                                    General properties                                                      Testing method

                                                                                                                                    Density                                            g/cm³        1.05                       -50°C up to
          Ø                                                                                                                         Colour                                                       dark grey                     +70°C
          6.0-20.0mm
                                                                                                                                    Max. moisture absorption at +23°C/50% r.h.       % weight       0.1       DIN 53495
                                                                                                                                    Max. moisture absorption                         % weight       0.1
                                                                                                                                    Coefficient of friction, dynamic, against steel      µ       0.09-0.23                     18MPa
                                                                                                                                    pv value, max. (dry)                             MPa · m/s      0.22
          Also available
          as:                                                                                                                       Mechanical properties
                      Ideal for pivoting movement                                                                                   Flexural modulus                                    MPa        1,477      DIN 53457
                                                                                                                                    Flexural strength at +20°C
                                                                                                                                                                                                              DIN 53452
                                                                                                                                                                                                    22
                                                                                                                                                                                        MPa
                      Vibration-dampening with low coefficient of friction                                                          Compressive strength                                MPa         18
          Bar stock,                                                                                                                Max. permissible surface pressure (+20°C)           MPa         18
          round bar   for low or medium loads
          Page 743                                                                                                                  Shore D hardness                                                61        DIN 53505
                                                                                                                                    Physical and thermal properties
                      For the first time, the material iglidur  E7, well-known from drylin  linear technology, is also available as   Max. application temperature long-term             °C         +70
                                                    ®
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                      a plain bearing. Plain bearings made of the material offer excellent coefficient of friction and wear with    Max. application temperature short-term              °C         +90                         FOOD
                      low to medium loads.                                                                                          Min. application temperature                         °C         -50
          Bar stock,   ● 	Noise-dampening                                                                                           Thermal conductivity                              W/m · K       0.24      ASTM C 177
          plate       ● 	Low coefficient of friction                                                                                                                                   -1   -5
          Page 773                                                                                                                  Coefficient of thermal expansion (at +23°C)       K  · 10       25        DIN 53752
                      ● 	Lubrication-free                                                                                           Electrical properties
                      ● 	Corrosion-free                                                                                             Specific transitional resistance                    Ωcm        >10 9      DIN IEC 93
                                                                                                                                    Surface resistance                                   Ω         >10 9      DIN 53482
                      Typical application areas
                      ● 	Packaging industry                                                                                         Table 01: Material properties
          tribo-tape liner
          Page 781    ● 	Textile industry                                                                                           The material E7 offers good vibration-dampening properties.    Resistance to weathering
                      ● 	Furniture/Industrial design
                                                                                                                                    With low coefficient of friction at low and medium loads, the   iglidur  E7 plain bearings are continuously resistant to
                                                                                                                                                                                            ®
                                                                                                                                    material is a suitable partner for almost all shaft materials.  weathering. The material properties are only slightly
                                                                                                                                                                                       affected. Possible discolourations are only superficial.
                                                                                                                                    Moisture absorption
                                                                                                                                    The moisture absorption of iglidur  E7 plain bearings in   Mechanical properties
                                                                                                                                                                 ®
          Guide rings
          Page 641                                                                                                                  ambient conditions is approximately 0.1% weight. The   With increasing temperatures, the compressive strength of
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                                                                                                                                    saturation limit submerged in water is 0.1% weight. These   iglidur  E7 plain bearings decreases. Diagram 02 shows
                       Descriptive technical specifications                                                                         values are so low that a moisture expansion need to be   this inverse relationship. The maximum recommended
                       Wear resistance at +23°C                     –                       +                                       considered only in extreme cases.                  surface pressure is a mechanical material parameter.
                                                                                                                                                                                       No conclusions regarding the tribological properties can
                       Wear resistance at +90°C                     –                       +
                                                                                                                                    Vacuum                                             be drawn from this. At the maximum permissible load of
          Two hole     Wear resistance at +150°C                    –                       +                                       In vacuum, any present moisture is released as vapour.   18MPa, the deformation is approximately 3.5% (diagram
          flange
          bearings                                                                                                                  The use in vacuum is generally possible.           03). A plastic deformation can be negligible up to this value.
          Page 667     Slide property                               –                       +
                                                                                                                                                                                       However, it is also dependent on the service time.
                       Wear resistance under water                  –                       +                                       Radiation resistance
                                                                                                                                    Plain bearings made from iglidur  E7 are resistant up to a   Surface pressure, page 45
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                       Media resistance                             –                       +
                                                                                                                                    radiation intensity of 3 · 10² Gy.
          Moulded      Resistant to edge pressures                  –                       +
          special parts
          Page 696     Resistant to shock and impact loads          –                       +

                       Dirt resistance                              –                       +




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          272   3D-CAD, finder and service life calculation ... www.igus-asean.com/E7                                                                           Lubrication-free made easy ... from stock ... no minimum order quantity   273
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