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iglidur  Z                                                                                                                                                                                                              iglidur  Z
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         +250°C                                                                                                                                                                                                                   +250°C
         150MPa                                                                                                                                                                                                                   150MPa
                      Bearing technology | Plain bearings | iglidur  Z                                                              Technical data
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                                                                                                                                    General properties                                                      Testing method

                                                                                                                                    Density                                            g/cm³        1.40                       -100°C up to
          Ø                                                                                                                         Colour                                                         brown                       +250°C
          4.0-120.0mm
                                                                                                                                    Max. moisture absorption at +23°C/50% r.h.       % weight       0.3       DIN 53495
                                                                                                                                    Max. moisture absorption                         % weight       1.1
                                                                                                                                    Coefficient of friction, dynamic, against steel      µ       0.06-0.14                     150MPa
                                                                                                                                    pv value, max. (dry)                             MPa · m/s      0.84
          Also available
          as:                                                                                                                       Mechanical properties
                      Long service life under extreme conditions                                                                    Flexural modulus                                    MPa        2,400      DIN 53457
                                                                                                                                                                                                              DIN 53452
                                                                                                                                                                                                    95
                                                                                                                                                                                        MPa
                                                                                                                                    Flexural strength at +20°C
                      Resistant to wear and impact even at high loads                                                               Compressive strength                                MPa         65
          Bar stock,                                                                                                                Max. permissible surface pressure (+20°C)           MPa         150
          round bar   and temperatures
          Page 743                                                                                                                  Shore D hardness                                                81        DIN 53505
                                                                                                                                    Physical and thermal properties
                      Extremely high compressive strength coupled with high flexibility enables iglidur  Z bearings to attain       Max. application temperature long-term               °C        +250
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                      their prominent properties in association with soft shafts, edge loads and impacts. At the same time the      Max. application temperature short-term              °C        +310                         FOOD
                      bearings suitable for temperatures up to +250°C.                                                              Min. application temperature                         °C        -100

          Bar stock,   ● 	Excellent wear resistance especially with high loads                                                      Thermal conductivity                              W/m · K       0.62      ASTM C 177
          plate       ● 	High temperature resistance                                                                                                                                   -1   -5
          Page 773                                                                                                                  Coefficient of thermal expansion (at +23°C)       K  · 10        4        DIN 53752
                      ● 	Suitable for very high loads                                                                               Electrical properties
                      ● 	Suitable for high surface speeds                                                                           Specific transitional resistance                    Ωcm        > 10 11    DIN IEC 93
                      ● 	Suitable for high edge pressures                                                                           Surface resistance                                   Ω         > 10 11    DIN 53482
                      ● 	Lubrication-free                                                                                           Table 01: Material properties
                      ● 	Maintenance-free
          tribo-tape liner
          Page 781                                                                                                                  In addition to iglidur  X, iglidur  Z is among the best-selling    Resistance to weathering
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                      Typical application areas                                                                                     iglidur  high-temperature materials. Specifically worth   iglidur  Z plain bearings are continuously resistant to
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                      ● 	Construction machinery industry                                                                            noting is the outstanding wear behaviour under extreme   weathering. The material properties are only slightly
                      ● 	Mechanical engineering                                                                                     conditions (high loads and temperatures).          affected. Possible discolourations are only superficial.
                      ● 	Textile industry
                      ● 	Aerospace engineering                                                                                      Moisture absorption                                Mechanical properties
          Guide rings  ● 	Glass industry
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          Page 641                                                                                                                  The moisture absorption of iglidur  Z plain bearings in   With increasing temperatures, the compressive strength
                                                                                                                                    ambient conditions is approximately 0.3% weight. The   of iglidur  Z plain bearings decreases. Diagram 02 shows
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                       Descriptive technical specifications                                                                         saturation limit submerged in water is 1.1% weight.  this inverse relationship. The maximum recommended
                       Wear resistance at +23°C                     –                       +                                                                                          surface pressure is a mechanical material parameter. No
                                                                                                                                    Vacuum                                             conclusions regarding the tribological properties can be
                       Wear resistance at +90°C                     –                       +
                                                                                                                                    In vacuum, any present moisture is released as vapour.   drawn from this.
          Two hole     Wear resistance at +150°C                    –                       +                                       Use in vacuum is only possible with dehumidified iglidur  Z    iglidur  Z is suitable for both medium and - due to its
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          flange
          bearings                                                                                                                  bearings.                                          high heat resistance - high speeds. Diagram 03 shows
          Page 667     Slide property                               –                       +
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                                                                                                                                                                                       the elastic deformation of iglidur  Z at radial loads. At the
                       Wear resistance under water                  –                       +                                       Radiation resistance                               maximum recommended surface pressure of 23MPa the
                                                                                                                                    Plain bearings made from iglidur  Z are resistant up to a   deformation is about 5.5% at room temperature.
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                       Media resistance                             –                       +
                                                                                                                                    radiation intensity of 1 · 10⁵ Gy.                 Surface pressure, page 45
          Moulded      Resistant to edge pressures                  –                       +
          special parts
          Page 696     Resistant to shock and impact loads          –                       +
                       Dirt resistance                              -                       +




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          302   3D-CAD, finder and service life calculation ... www.igus-asean.com/Z                                                                            Lubrication-free made easy ... from stock ... no minimum order quantity   303
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