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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
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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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