Page 357 - IGUS Bearing
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iglidur  H370                                                                                                                                                                                                            iglidur  H370
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         +200°C                                                                                                                                                                                                                   +200°C
          75MPa                                                                                                                                                                                                                   75MPa
                      Bearing technology | Plain bearings | iglidur  H370                                                           Technical data
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                                                                                                                                    General properties                                                      Testing method

                                                                                                                                    Density                                            g/cm³        1.66                       -40°C up to
          Ø                                                                                                                         Colour                                                          grey                       +200°C
          3.0-75.0mm
                                                                                                                                    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       0.07-0.17                     75MPa
                                                                                                                                    pv value, max. (dry)                             MPa · m/s      0.74
          Also available
          as:                                                                                                                       Mechanical properties
                      Long service life under water                                                                                 Flexural modulus                                    MPa       11,100      DIN 53457
                                                                                                                                    Flexural strength at +20°C
                                                                                                                                                                                        MPa
                                                                                                                                                                                                    135
                                                                                                                                                                                                              DIN 53452
                      High media resistance                                                                                         Compressive strength                                MPa         79
          Bar stock,                                                                                                                Max. permissible surface pressure (+20°C)           MPa         75
          round bar
          Page 743                                                                                                                  Shore D hardness                                                82        DIN 53505
                      iglidur  H370 is the right solution for underwater applications. The bearings absorb extremely high loads,
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                      are resistant to chemicals and can be used at temperatures up to +200°C.                                      Physical and thermal properties
                      ● 	Suitable for underwater applications                                                                       Max. application temperature long-term               °C        +200                         FOOD
                      ● 	Temperature-resistant from -40°C to +200°C                                                                 Max. application temperature short-term              °C        +240
                      ● 	Chemical-resistant                                                                                         Min. application temperature                         °C         -40
          Bar stock,   ● 	Lubrication-free                                                                                          Thermal conductivity                              W/m · K       0.50      ASTM C 177
          plate                                                                                                                                                                        -1   -5
          Page 773    ● 	Maintenance-free                                                                                           Coefficient of thermal expansion (at +23°C)       K  · 10        5        DIN 53752
                                                                                                                                    Electrical properties 5)
                      Typical application areas                                                                                     Specific transitional resistance                    Ωcm        < 10 5     DIN IEC 93
                      ● 	Offshore                                                                                                   Surface resistance                                   Ω         < 10 5     DIN 53482
                      ● 	Ship building                                                                                              5)  The good conductivity of this material can favour the generation of corrosion on the metallic contact components.
          tribo-tape liner  ● 	Fluid technology                                                                                     Table 01: Material properties
          Page 781    ● 	Packaging
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                      ● 	Plant construction                                                                                         iglidur  H370 is an advanced development of the iglidur  H    Resistance to weathering
                                                                                                                                    series. The material is characterised by particularly low   iglidur  H370 plain bearings are continuously resistant
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                                                                                                                                    moisture absorption and clearly enhanced wear resistance.   to weathering. The material properties are only slightly
                                                                                                                                    With regard to the mechanical and thermal characteristic   affected. Possible discolourations are only superficial.
                                                                                                                                    values, iglidur  H370 shows the same features as iglidur  H.
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          Guide rings
          Page 641                                                                                                                                                                     Mechanical properties
                                                                                                                                    Moisture absorption                                With increasing temperatures, the compressive strength of
                       Descriptive technical specifications                                                                         The moisture absorption of iglidur  H370 plain bearings is   iglidur  H370 plain bearings decreases. Diagram 02 shows
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                       Wear resistance at +23°C                     –                       +                                       below 0.1% weight in ambient conditions. The saturation   this inverse relationship. The maximum recommended
                                                                                                                                    limit submerged in water is also 0.1% weight. For this   surface pressure is a mechanical material parameter. No
                       Wear resistance at +90°C                     –                       +
                                                                                                                                    reason, iglidur  H370 plain bearings are often used for   conclusions regarding the tribological properties can be
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          Two hole     Wear resistance at +150°C                    –                       +                                       underwater applications.                           drawn from this.
          flange
          bearings                                                                                                                                                                     Diagram 03 shows the elastic deformation of iglidur  H370
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          Page 667     Slide property                               –                       +
                                                                                                                                    Vacuum                                             under different loads. At the recommended maximum
                       Wear resistance under water                  –                       +                                       In vacuum, any present moisture is released as vapour.   surface pressure of 75MPa the deformation is less than
                                                                                                                                    The use in vacuum is generally possible.           2.5% at room temperature.
                       Media resistance                             –                       +
                                                                                                                                                                                       Surface pressure, page 45
          Moulded      Resistant to edge pressures                  –                       +                                       Radiation resistance
          special parts                                                                                                             iglidur  H370 withstands neutron and gamma particle
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          Page 696     Resistant to shock and impact loads          –                       +
                                                                                                                                    radiation. Plain bearings made from iglidur  H370 are
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                       Dirt resistance                              –                       +                                       resistant up to a radiation intensity of 2 · 10² Gy.



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          354   3D-CAD, finder and service life calculation ... www.igus-asean.com/H370                                                                         Lubrication-free made easy ... from stock ... no minimum order quantity   355
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