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iglidur  R                                                                                                                                                                                                              iglidur  R
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          +90°C                                                                                                                                                                                                                   +90°C
          23MPa                                                                                                                                                                                                                   23MPa
                      Bearing technology | Plain bearings | iglidur  R                                                              Technical data
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                                                                                                                                    General properties                                                      Testing method

                                                                                                                                    Density                                            g/cm³        1.39                       -50°C up to
          Ø                                                                                                                         Colour                                                        dark red                     +90°C
          2.0-35.0mm
                                                                                                                                    Max. moisture absorption at +23°C/50% r.h.       % weight       0.2       DIN 53495
                                                                                                                                    Max. moisture absorption                         % weight       1.1
                                                                                                                                    Coefficient of friction, dynamic, against steel      µ       0.09-0.25                     23MPa
                                                                                                                                    pv value, max. (dry)                             MPa · m/s      0.27
          Also available
          as:                                                                                                                       Mechanical properties
                      Low-cost                                                                                                      Flexural modulus                                    MPa        1,950      DIN 53457
                                                                                                                                    Flexural strength at +20°C
                                                                                                                                                                                                    70
                                                                                                                                                                                                              DIN 53452
                                                                                                                                                                                        MPa
                      Abrasion-resistant                                                                                            Compressive strength                                MPa         68
          Bar stock,                                                                                                                Max. permissible surface pressure (+20°C)           MPa         23
          round bar
          Page 743                                                                                                                  Shore D hardness                                                77        DIN 53505
                      Low-cost material with low coefficient of friction and good wear resistance at low to medium loads.
                      ● 	High wear resistance                                                                                       Physical and thermal properties
                      ● 	Low coefficient of friction                                                                                Max. application temperature long-term               °C         +90                         FOOD
                      ● 	Cost-effective                                                                                             Max. application temperature short-term              °C        +110
                      ● 	Low moisture absorption                                                                                    Min. application temperature                         °C         -50
          Bar stock,   ● 	Lubrication-free                                                                                          Thermal conductivity                              W/m · K       0.25      ASTM C 177
          plate                                                                                                                                                                        -1   -5
          Page 773    ● 	Maintenance-free                                                                                           Coefficient of thermal expansion (at +23°C)       K  · 10       11        DIN 53752
                                                                                                                                    Electrical properties
                      Typical application areas                                                                                     Specific transitional resistance                    Ωcm        > 10 12    DIN IEC 93
                      ● 	Sports and leisure                                                                                         Surface resistance                                   Ω         > 10 12    DIN 53482
                      ● 	Model making                                                                                               Table 01: Material properties
          tribo-tape liner  ● 	Furniture industry
          Page 781    ● 	Mechatronics                                                                                               The development of the iglidur  R as a bearing material   Resistance to weathering
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                                                                                                                                    focused on high performance and very low cost. Especially   iglidur  R plain bearings are resistant to weathering. The
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                                                                                                                                    in the dry operation, low coefficient of friction and wear   material properties are slightly affected. Discolouration
                                                                                                                                    were to be achieved. Plain bearings made from iglidur  R   occurs.
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                                                                                                                                    are supported by a combination of solid lubricants. The
                                                                                                                                    PTFE and silicon-free material achieves extremely low   Mechanical properties
          Guide rings
          Page 641                                                                                                                  coefficient of friction in dry operation and runs largely free   With increasing temperatures, the compressive strength
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                                                                                                                                    of stick-slip effects.                             of iglidur  R plain bearings decreases. Diagram 02 shows
                       Descriptive technical specifications                                                                                                                            this inverse relationship. The maximum recommended
                       Wear resistance at +23°C                     –                       +                                       Moisture absorption                                surface pressure is a mechanical material parameter. No
                                                                                                                                    The moisture absorption of iglidur  R plain bearings in   conclusions regarding the tribological properties can be
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                       Wear resistance at +90°C                     –                       +
                                                                                                                                    ambient conditions is approximately 0.2% weight. The   drawn from this.
          Two hole     Wear resistance at +150°C                    –                       +                                       saturation limit submerged in water is 1.1% weight. This   Diagram 03 shows the elastic deformation of iglidur  R
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          flange
          bearings                                                                                                                  must be taken into account for these types of applications.  at radial loads. At the maximum recommended surface
          Page 667     Slide property                               –                       +
                                                                                                                                                                                       pressure of 23MPa the deformation is about 4% at room
                       Wear resistance under water                  –                       +                                       Vacuum                                             temperature. A plastic deformation can be negligible up
                                                                                                                                    In vacuum, any present moisture is released as vapour.   to this value. However, it is also dependent on the service
                       Media resistance                             –                       +
                                                                                                                                    The use in vacuum is only possible to a limited extent.  time.
          Moulded      Resistant to edge pressures                  –                       +                                                                                          Surface pressure, page 45
          special parts                                                                                                             Radiation resistance
          Page 696     Resistant to shock and impact loads          –                       +
                                                                                                                                    Plain bearings made from iglidur  R are resistant up to a
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                       Dirt resistance                              –                       +                                       radiation intensity of 3 · 10² Gy.




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          252   3D-CAD, finder and service life calculation ... www.igus-asean.com/R                                                                            Lubrication-free made easy ... from stock ... no minimum order quantity   253
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