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iglidur  A500                                                                                                                                                                                                            iglidur  A500
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         +250°C                                                                                                                                                                                                                   +250°C
         120MPa                                                                                                                                                                                                                   120MPa
                      Bearing technology | Plain bearings | iglidur  A500                                                           Technical data
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          Permissible surface speeds                          Chemicals                        Resistance                             1,000                                                0.7
          iglidur  A500 also permits high surface speeds due to its   Alcohols                     +                                    100                                                0.6
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          high temperature resistance. The coefficient of friction rises   Diluted acids           +                                                                                       0.5
          however by these high speeds leading to a higher heating   Diluted alkalines             +                                     10                                                0.4
          up of the bearing. Tests show that plain bearings made   Fuels                           +                                                                                       0.3
          from iglidur  A500 are more wear-resistant in the case of   Greases, oils without additives  +                             Surface pressure [MPa]  1                          Coefficient of friction [µ]  0.2
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          pivoting movements, and the permissible pv values are   Hydrocarbons                     +                                                                                       0.1
          also higher in pivoting applications.               Strong acids                         +                                    0.1  0.001   0.01     0.1      1.0      10.0       0.0
          Surface speed, page 48                              Strong alkalines                     +                                                                                           0    10   20   30    40   50   60   70
                                                                                                                                      Surface speed [m/s]                                Load [MPa]
                                                             All data given at room temperature [+20°C]
          Temperature                                                                                                               Diagram 01: Permissible pv values for iglidur  A500 with a   Diagram 05: Coefficient of friction as a function of the
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          iglidur  A500 plain bearings can be used at temperatures    Table 02: Chemical resistance                                 wall thickness of 1mm dry operation against a steel shaft at   pressure, v = 0.01m/s
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                                                             Chemical table, page 1170
          up to +300°C for short periods. When temperatures                                                                         +20°C, mounted in a steel housing
          increase, the compressive strength of iglidur  A500 plain            Rotating Oscillating   linear
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          bearings decreases. Diagram 02 shows this inverse    Long-term  m/s     0.6       0.4        1.0                             160                                                 30
          relationship. The temperatures prevailing in the bearing   Short-term  m/s  1.0   0.7        2.0                             140                                                 27
          system also have an influence on the wear. For temperatures                                                                  120                                                 24
                                                                                                                                                                                           21
          over +130°C an additional securing is required.    Table 03: Maximum surface speeds                                          100                                                 18
          Application temperatures, page 53                                        Dry    Greases Oil  Water                            80                                                 15          Free cutting steel   Cf53, hard chromed  304 stainless steel
                                                                                                                                                                                           12
          Additional securing, page 53                                                                                                  60                                                  9     H.a. aluminium       HR carbon steel  High grade steel
                                                              Coefficient of friction μ 0.26-0.41  0.09  0.04  0.04                     40                                                  6               Cf53 steel
                                                             Table 04: Coefficient of friction against steel (Ra = 1μm,              Load [MPa]  20                                     Wear [µm/km]  3
          Friction and wear                                                                                                              0                                                  0
          The coefficient of friction is dependent on the load that   50HRC)                                                               20    50     80    120   150   200   250
          acts on the bearing (diagrams 04 and 05).                       Housing   Plain bearings   Shaft                            Temperature [°C]
          Coefficient of friction and surfaces, page 51       Ø d1 [mm]   H7 [mm]     F10 [mm]     h9 [mm]                          Diagram 02: Maximum recommended surface pressure as a   Diagram 06: Wear, rotating with different shaft materials,
          Wear resistance, page 54                                                                                                  function of temperature (120MPa at +20°C)          pressure, p = 1MPa, v = 0.3m/s
                                                              0-3       +0.000 +0.010 +0.006 +0.046 -0.025 +0.000
                                                              > 3-6     +0.000 +0.012 +0.010 +0.058 -0.030 +0.000
          Shaft materials                                     > 6-10    +0.000 +0.015 +0.013 +0.071 -0.036 +0.000                       10                                                 200
          Diagram 06 shows results of testing different shaft   > 10-18  +0.000 +0.018 +0.016 +0.086 -0.043 +0.000                                                                                    rotating
                                                                                                                                                                                                      oscillating
          materials with plain bearings made from iglidur  A500. The   > 18-30  +0.000 +0.021 +0.020 +0.104 -0.052 +0.000                8       +23°C                                     160
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          combination "iglidur  A500/hard-chromed shaft" clearly   > 30-50  +0.000 +0.025 +0.025 +0.125 -0.062 +0.000                    6       +60°C                                     120
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          stands out in rotating application. Up to about 2.0MPa,   > 50-80  +0.000 +0.030 +0.030 +0.150 -0.074 +0.000                   4                                                 80
          the wear of this combination remains largely independent   > 80-120  +0.000 +0.035 -0.036 +0.176 -0.087 +0.000
          of load. In pivoting applications with Cf53 shafts, the wear   > 120-180  +0.000 +0.040 +0.043 +0.203 +0.000 +0.100        Deformation [%]  2                                 Wear [µm/km]  40
          resistance is better than in rotations under equal load. If                                                                    0                                                  0
          the shaft material you plan on using is not shown in these   Table 05: Important tolerances for plain bearings according         0     20     40    60    80    100   120            0      10     20      30     40     50
          test results, please contact us.                   to ISO 3547-1 after press-fit                                            Load [MPa]                                         Load [MPa]
          Shaft materials, page 56                                                                                                  Diagram 03: Deformation under pressure and temperature  Diagram 07: Wear for oscillating and rotating applications
                                                                                                                                                                                       with shaft material Cf53 hardened and ground steel, as a
          Installation tolerances                                                                                                                                                      function of the load
          iglidur  A500 plain bearings are standard bearings for                                                                        0.5
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          shafts with h tolerance (recommended minimum h9).                                                                             0.4
          The bearings are designed for press-fit into a housing
          machined to a H7 tolerance. After being assembled into a                                                                      0.3
          nominal size housing, in standard cases the inner diameter                                                                 Coefficient of friction [µ]
          automatically adjusts to the F10 tolerances. For particular                                                                   0.2
          dimensions the tolerance differs depending on the wall
          thickness (please see product range table).                                                                                   0.1
                                                                                                                                           0.05
                                                                                                                                                 0.10
          Testing methods, page 61                                                                                                    Surface speed [m/s]  0.15  0.20  0.25  0.30  0.35
                                                                                                                 ASEAN 09/2023   ASEAN 09/2023  Diagram 04: Coefficient of friction as a function of the

                                                                                                                                    surface speed, p = 0.75MPa

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