Page 635 - IGUS Bearing
P. 635

iglidur  C                                                                                                                                                                                                              iglidur  C
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          +90°C                                                                                                                                                                                                                   +90°C
          40MPa                                                                                                                                                                                                                   40MPa
                      Bearing technology | Plain bearings | iglidur  C                                                              Technical data
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                                                                                                                                      General properties                                                    Testing method

                                                                                                                                    Density                                            g/cm³        1.10                       -40°C up to
          Ø                                                                                                                         Colour                                                        off white                    +90°C
             –
                                                                                                                                    Max. moisture absorption at +23°C/50% r.h.       % weight        1        DIN 53495
                                                                                                                                    Max. moisture absorption                         % weight       6.9
                                                                                                                                    Coefficient of friction, dynamic, against steel      µ       0.17-0.25                     40MPa
                                                                                                                                    pv value, max. (dry)                             MPa · m/s      0.10
          Also available
          as:                                                                                                                       Mechanical properties
                      Free from PTFE and silicone                                                                                   Flexural modulus                                    MPa        1,900      DIN 53457
                                                                                                                                                                                                    60
                                                                                                                                                                                                              DIN 53452
                                                                                                                                    Flexural strength at +20°C
                                                                                                                                                                                        MPa
                      For simple applications                                                                                       Compressive strength                                MPa         30
          Bar stock,                                                                                                                Max. permissible surface pressure (+20°C)           MPa         40
          round bar
          Page 743                                                                                                                  Shore D hardness                                                72        DIN 53505
                      Although iglidur  C dispenses with the use of PTFE and silicone as lubricants, the bearings still have
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                      excellent wear resistance under low loads.                                                                    Physical and thermal properties
                      ● 	Maintenance-free dry operation                                                                             Max. application temperature long-term               °C         +90                         FOOD
                      ● 	High wear resistance                                                                                       Max. application temperature short-term              °C        +130
                      ● 	Lubrication-free                                                                                           Min. application temperature                         °C         -40
          Bar stock,   ● 	Maintenance-free                                                                                          Thermal conductivity                              W/m · K       0.24      ASTM C 177
          plate                                                                                                                                                                        -1   -5
          Page 773                                                                                                                  Coefficient of thermal expansion (at +23°C)       K  · 10       15        DIN 53752
                                                                                                                                    Electrical properties
                                                                                                                                    Specific transitional resistance                    Ωcm        > 10 10    DIN IEC 93
                                                                                                                                    Surface resistance                                   Ω         > 10 9     DIN 53482
                                                                                                                                    Table 01: Material properties
          tribo-tape liner
          Page 781                                                                                                                  Plain bearings made from iglidur  C were developed   Resistance to weathering
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                                                                                                                                    especially for applications where the use of PTFE and   iglidur  C plain bearings have limited resistance to weathering.
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                                                                                                                                    silicon is not possible. Such applications can be found in   The material properties are affected. Discolouration
                                                                                                                                    electronics, tobacco and beverages industry and in many   occurs. Practical tests under real application conditions
                                                                                                                                    painting processes. Keywords like paint compatibility and   are recommended.
                                                                                                                                    silicon-free make the further employment of this material
          Guide rings
          Page 641                                                                                                                  reasonable.                                        Mechanical properties
                                                                                                                                                                                       With increasing temperatures, the compressive strength
                       Descriptive technical specifications                                                                         Moisture absorption                                of iglidur  C plain bearings decreases. Diagram 02 shows
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                       Wear resistance at +23°C                     –                       +                                       The moisture absorption of iglidur  C plain bearings is only   this inverse relationship. The maximum recommended
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                                                                                                                                    6.9% weight after saturation in water. This must be taken   surface pressure is a mechanical material parameter. No
                       Wear resistance at +90°C                     –                       +
                                                                                                                                    into account for these types of applications.      conclusions regarding the tribological properties can be
          Two hole     Wear resistance at +150°C                    –                       +                                                                                          drawn from this.
          flange
          bearings                                                                                                                  Vacuum                                             Diagram 03 shows the elastic deformation of iglidur  C at
                                                                                                                                                                                                                                  ®
          Page 667     Slide property                               –                       +
                                                                                                                                    In vacuum, any present moisture is released as vapour.   radial loads. The high flexibility makes the bearing suitable
                       Wear resistance under water                  –                       +                                       The use in vacuum is only possible to a limited extent.  for vibrations and edge loads.
                                                                                                                                                                                       Surface pressure, page 45
                       Media resistance                             –                       +
                                                                                                                                    Radiation resistance
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          Moulded      Resistant to edge pressures                  –                       +                                       Plain bearings made from iglidur  C are resistant up to a
          special parts                                                                                                             radiation intensity of 2 · 10⁴ Gy.
          Page 696     Resistant to shock and impact loads          –                       +

                       Dirt resistance                              –                       +




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          632   3D-CAD, finder and service life calculation ... www.igus-asean.com/C                                                                            Lubrication-free made easy ... from stock ... no minimum order quantity   633
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