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iglidur  L350                                                                                                                                                                                                            iglidur  L350
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         +180 °C                                                                                                                                                                                                                  +180 °C
          59MPa                                                                                                                                                                                                                   59MPa
                      Bearing technology | Plain bearings | iglidur  L350                                                           Technical data
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                                                                                                                                    General properties                                                      Testing method

                                                                                                                                    Density                                            g/cm³        1.54                       -100 °C up to
          Ø                                                                                                                         Colour                                                       dark grey                     +180 °C
          3.0-10.0mm
                                                                                                                                    Max. moisture absorption at +23°C/50% r.h.       % weight       0.4       DIN 53495
                                                                                                                                    Max. moisture absorption                         % weight       1.4
                                                                                                                                    Coefficient of friction, dynamic, against steel      µ       0.07-0.18                     59MPa
                                                                                                                                    pv value, max. (dry)                             MPa · m/s      3.00
          Also available
          as:                                                                                                                       Mechanical properties
                      For high rotational speeds                                                                                    Flexural modulus                                    MPa       15,882      DIN 53457
                                                                                                                                                                                                              DIN 53452
                                                                                                                                                                                                    210
                                                                                                                                                                                        MPa
                                                                                                                                    Flexural strength at +20°C
                      High performance at lower cost                                                                                Compressive strength                                MPa         210
          Bar stock,                                                                                                                Max. permissible surface pressure (+20°C)           MPa         59
          round bar
          Page 743                                                                                                                  Shore D hardness                                                80        DIN 53505
                      iglidur  L350 is extremely long-lasting. Developed for the best coefficient of wear and friction at speeds
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                      of 1.5m/s and more, this material outperforms classic plain bearings in high-speed rotation operation.        Physical and thermal properties
                      ● 	Up to 3.5m/s rotating                                                                                      Max. application temperature long-term               °C        +180                         FOOD
                      ● 	Temperature-resistant up to +210°C in continuous use                                                       Max. application temperature short-term              °C        +210
                      ● 	Low moisture absorption                                                                                    Min. application temperature                         °C        -100
          Bar stock,   ● 	Good price-performance ratio                                                                              Thermal conductivity                              W/m · K       0.61      ASTM C 177
          plate                                                                                                                                                                        -1   -5
          Page 773    ● 	Extremely wear-resistant                                                                                   Coefficient of thermal expansion (at +23°C)       K  · 10        7        DIN 53752
                      ● 	Lubrication and maintenance-free                                                                           Electrical properties
                      ● 	Standard range from stock                                                                                  Specific transitional resistance                    Ωcm        > 10 5     DIN IEC 93
                                                                                                                                    Surface resistance                                   Ω         > 10 5     DIN 53482
                      Typical application areas                                                                                     Table 01: Material properties
          tribo-tape liner  ● 	Electric motors
          Page 781    ● 	Fans                                                                                                       With iglidur  L350, another lubrication and maintenance-   Resistance to weathering
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                      ● 	Household appliances                                                                                       free material is now available, which is designed for   iglidur  L350 plain bearings have not yet been tested for
                                                                                                                                    continuous high speeds. Due to the low thermal expansion   their resistance to weathering. Please consult igus  if
                                                                                                                                                                                                                                    ®
                                                                                                                                    and low moisture absorption, bearings can be manufactured    you're planning to use them outdoors.
                                                                                                                                    with very little clearance. iglidur  L350 is especially suitable
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                                                                                                                                    for use in fans, blowers or electric motors – and the costs   Mechanical properties
          Guide rings
          Page 641                                                                                                                  are also lower.                                    When temperatures increase, the compressive strength of
                                                                                                                                                                                       iglidur  L350 plain bearings decreases. Diagram 02 shows
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                       Descriptive technical specifications                                                                         Moisture absorption                                this inverse relationship. The maximum recommended
                       Wear resistance at +23°C                     –                       +                                       The very low moisture absorption of 0.4 %weight in   surface pressure is a mechanical material parameter. No
                                                                                                                                    standard climatic conditions and 1.4 %weight at maximum   conclusions regarding the tribological properties can be
                       Wear resistance at +90°C                     –                       +
                                                                                                                                    water absorption also enables continuous operation in high   drawn from this.
          Two hole     Wear resistance at +150°C                    –                       +                                       humidity or in liquid media.                       Diagram 03 shows the elastic deformation of iglidur  L350
                                                                                                                                                                                                                                 ®
          flange
          bearings                                                                                                                                                                     under different loads. At the recommended maximum
          Page 667     Slide property                               –                       +
                                                                                                                                    Vacuum                                             surface pressure of 59MPa the deformation is less than
                       Wear resistance under water                  –                       +                                       In vacuum, the moisture content is released as vapour. Due   2.5% at room temperature. A plastic deformation can be
                                                                                                                                    to its low moisture absorption, use in a vacuum is possible.  negligible up to this value. It is however also dependent
                       Media resistance                             –                       +
                                                                                                                                                                                       on the duty cycle of the load.
          Moulded      Resistant to edge pressures                  –                       +                                       Radiation resistance                               Surface pressure, page 45
          special parts                                                                                                             Plain bearings made from iglidur  L350 are resistant up to
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          Page 696     Resistant to shock and impact loads          –                       +
                                                                                                                                    a radiation intensity of 2 · 10² Gy. Higher radiation affects
                       Dirt resistance                              –                       +                                       the material and may result in a significant decrease in
                                                                                                                                    mechanical properties.



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          236   3D-CAD, finder and service life calculation ... www.igus-asean.com/L350                                                                         Lubrication-free made easy ... from stock ... no minimum order quantity   237
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