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iglidur  A350                                                                                                                                                                                                            iglidur  A350
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         +180 °C                                                                                                                                                                                                                  +180 °C
          60MPa                                                                                                                                                                                                                   60MPa
                      Bearing technology | Plain bearings | iglidur  A350                                                           Technical data
                                                                                                 ®
          Permissible surface speeds                          Chemicals                        Resistance                             100.0                                               0.19
          iglidur  A350 plain bearings are suitable for low and   Alcohols                         +                                   10.0                                               0.17
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          medium speeds in rotating and oscillating applications.   Diluted acids                  +                                                                                      0.15
          Good bearing support for linear movements is also possible   Diluted alkalines           +                                    1.0                                               0.13
          with iglidur  A350. In the case of high surface speeds   Fuels                           +                                                                                      0.11
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          it should be tested whether iglidur  J or iglidur  L250    Greases, oils without additives  +                              Surface pressure [MPa]  0.1                        Coefficient of friction [µ]  0.09
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          can be used, as the wear rate of these bearings is lower.  Hydrocarbons               + up to 0                                                                                 0.07
          Surface speed, page 48                              Strong acids                         +                                   0.01  0.001   0.01     0.1      1.0      10.0      0.05  0  5  10 15 20 25 30 35 40 45 50 55 60
                                                              Strong alkalines                     +
          Temperature                                                                                                                 Surface speed [m/s]                                Load [MPa]
          Its temperature resistance makes iglidur  A350 the   All data given at room temperature [+20°C]                           Diagram 01: Permissible pv values for iglidur  A350 with a   Diagram 05: Coefficient of friction as a function of the
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          ideal material for plain bearing used in the food area.   Table 02: Chemical resistance                                   wall thickness of 1mm dry operation against a steel shaft at   pressure, v = 0.01m/s
                                                             Chemical table, page 1170
          For temperatures over +140°C an additional securing is                                                                    +20°C, mounted in a steel housing
          required. The wear rate of iglidur  A350 plain bearings              Rotating Oscillating   linear
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          rises only little with higher temperatures. Tests have shown   Long-term  m/s  1.0  0.8      2.5                              80                                                 4.5
          good wear results at +100°C on all tested shaft materials.  Short-term  m/s  1.2  0.9        3.0                                                                                 4.0
          Application temperatures, page 53                                                                                             60                                                 3.5
          Additional securing, page 53                       Table 03: Maximum surface speeds                                                                                              3.0
                                                                                                                                                                                           2.5
                                                                                                                                        40                                                 2.0
                                                                                   Dry    Greases Oil  Water                                                                                           Free cutting steel   Cf53, hard chromed  HR carbon steel  304 stainless steel  High grade steel
          Friction and wear                                   Coefficient of friction μ 0.10-0.20  0.09  0.04  0.04                     20                                                 1.5    H.a. aluminium
          The coefficient of friction of iglidur  A350 on a steel shaft   Table 04: Coefficient of friction against steel (Ra = 1μm,                                                    Wear [µm/km]  1.0   Cf53 steel
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                                                                                                                                                                                           0.5
          is in the mid range (diagrams 04 and 05).                                                                                  Load [MPa]  0                                         0.0
          Coefficient of friction and surfaces, page 51      50HRC)                                                                        20   40   60  80   100  120  140  160  180
          Wear resistance, page 54                                                                                                    Temperature [°C]
                                                                          Housing   Plain bearings   Shaft
                                                              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,
          Shaft materials                                     0-3       +0.000 +0.010 +0.006 +0.046 -0.025 +0.000                   function of temperature (60MPa at +20°C)           pressure, p = 1MPa, v = 0.3m/s
          The corrosion-resistant steels are rather considered   > 3-6  +0.000 +0.012 +0.010 +0.058 -0.030 +0.000
          a natural choice for use in the food industry. The trials   > 6-10  +0.000 +0.015 +0.013 +0.071 -0.036 +0.000                  6                                                 25
          were therefore carried out especially on such materials. It   > 10-18  +0.000 +0.018 +0.016 +0.086 -0.043 +0.000               5                                                        Cf53     304 stainless steel
                                                                                                                                                                                                  High grade steel
          has been shown that there is no clear favourite and 304   > 18-30  +0.000 +0.021 +0.020 +0.104 -0.052 +0.000                   4       +23°C                                     20
          stainless steel, high grade steel and hard-chromed steel   > 30-50  +0.000 +0.025 +0.025 +0.125 -0.062 +0.000                          +60°C                                     15
          are all suitable. Hard-anodised aluminium is also well suited   > 50-80  +0.000 +0.030 +0.030 +0.150 -0.074 +0.000             3                                                 10
          for both linear and rotational movements.           > 80-120  +0.000 +0.035 -0.036 +0.176 -0.087 +0.000                        2
          Shaft materials, page 56                                                                                                   Deformation [%]  1                                     5
                                                              > 120-180  +0.000 +0.040 +0.043 +0.203 +0.000 +0.100                                                                      Wear [µm/km]
                                                             Table 05: Important tolerances for plain bearings according                 0                                                  0
          Installation tolerances                                                                                                          0     10     20    30    40    50    60             1.0      2.0      3.0      4.0      5.0
          iglidur  A350 plain bearings are standard bearings for   to ISO 3547-1 after press-fit                                      Load [MPa]                                         Load [MPa]
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          shafts with h tolerance (recommended minimum h9).                                                                         Diagram 03: Deformation under pressure and temperature  Diagram 07: Wear, rotating with different shaft materials, as a
          The bearings are designed for press-fit into a housing                                                                                                                       function of the load
          machined to a H7 tolerance. After being assembled into a
          nominal size housing, in standard cases the inner diameter                                                                    0.4
          automatically adjusts to the F10 tolerances. For particular                                                                   0.3
                                                                                                                                     Coefficient of friction [µ]  0.1
          dimensions the tolerance differs depending on the wall
          thickness (please see product range table).                                                                                   0.2
          Testing methods, page 61



                                                                                                                                        0.0
                                                                                                                                           0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50
                                                                                                                                      Surface speed [m/s]
                                                                                                                 ASEAN 09/2023   ASEAN 09/2023  surface speed, p = 1MPa
                                                                                                                                    Diagram 04: Coefficient of friction as a function of the



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