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iglidur H iglidur H
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+200°C +200°C
90 MPa 90 MPa
Bearing technology | Plain bearings | iglidur H Technical data
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Permissible surface speeds Installation tolerances 100.0 0.20
The maximum permitted surface speed is dependent on iglidur H plain bearings are standard bearings for 10.0 0.15
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whether the temperature at the bearing point becomes shafts with h-tolerance (recommended minimum h9).
too high or not. iglidur H is suitable for maximum surface The bearings are designed for press-fit into a housing 1.0 0.10
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speeds of 1.0m/s (rotating) and 3.0m/s (linear) in dry machined to a H7 tolerance. After being assembled into a
operation. Linear movements enable higher surface nominal size housing, in standard cases the inner diameter Surface pressure [MPa] 0.1 Coefficient of friction [µ] 0.05
speeds, as a large area of the shaft contributes to the automatically adjusts to the F10 tolerances. For particular
cooling. dimensions the tolerance differs depending on the wall 0.01 0.001 0.01 0.1 1.0 10.0 0.00
Surface speed, page 48 thickness (please see product range table). 0 10 20 30 40 50 60 70 80
Testing methods, page 61 Surface speed [m/s] Load [MPa]
Temperature Diagram 01: Permissible pv values for iglidur H plain bearing Diagram 05: Coefficient of friction as a function of the
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With increasing temperatures, the compressive strength with a wall thickness of 1mm dry operation against a steel pressure, v = 0.01m/s
of iglidur H plain bearings decreases. Diagram 02 shows Chemicals Resistance shaft at +20°C, mounted in a steel housing.
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this inverse relationship. The temperatures prevailing in Alcohols +
the bearing system also have an influence on the wear. Diluted acids + up to 0 160 18
For temperatures over +120°C an additional securing is Diluted alkalines + 140 15
required. Fuels + 120
Application temperatures, page 53 Greases, oils without additives + 100 12
Additional securing, page 53 Hydrocarbons + 80 9 Free cutting steel Cf53, hard chromed 304 stainless steel
Strong acids + up to – 60 6 H.a. aluminium HR carbon steel High grade steel
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Friction and wear Strong alkalines + 20 Wear [µm/km] 3 Cf53 steel
Both the wear resistance and the coefficient of friction All data given at room temperature [+20°C] Load [MPa] 0 0
change depending on the load. Interestingly, the coefficient Table 02: Chemical resistance 20 30 40 50 120 130
of friction µ lowers slightly with the increase of surface Chemical table, page 1170 Temperature [°C]
speed at constant load (see diagram 04 and 05). Diagram 02: Maximum recommended surface pressure as a Diagram 06: Wear, rotating with different shaft materials,
Coefficient of friction and surfaces, page 51 Rotating Oscillating linear function of temperature (90MPa at +20°C) pressure, p = 1MPa, v = 0.3m/s
Wear resistance, page 54 Long-term m/s 1.0 0.7 3.0
Short-term m/s 1.5 1.1 4.0 3.5 45
Shaft materials Table 03: Maximum surface speeds 3.0 40 rotating
oscillating
Diagram 06 and 07 display a summary of the results of 2.5 +23°C 35
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tests with different shaft materials executed with plain Dry Greases Oil Water 2.0 +60°C 25
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bearings made of iglidur H. The iglidur H plain bearings Coefficient of friction μ 0.07-0.20 0.09 0.04 0.04 1.5 20
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give different results when used in rotating and pivoting Table 04: Coefficient of friction against steel (Ra = 1μm, 1.0 15
applications on different shaft materials. The Cf53 and HR 50HRC) Deformation [%] 0.5 Wear [µm/km] 10
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carbon steel shafts give the best wear values in rotating 0.0 0
applications, whereas the 304 stainless steel shafts (which Housing Plain bearings Shaft 0 25 50 75 100 Cf53 hard 304SS HR carbon
are not so good for rotation) give the best results in pivoting Ø d1 [mm] H7 [mm] F10 [mm] h9 [mm] Load [MPa] chromed steel
applications. Hard-chromed shafts only give an advantage 0-3 +0.000 +0.010 +0.006 +0.046 -0.025 +0.000 Diagram 03: Deformation under pressure and temperature Diagram 07: Wear for rotating and oscillating applications
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at low pressures when used with iglidur H bearings. > 3-6 +0.000 +0.012 +0.010 +0.058 -0.030 +0.000 with different shaft materials, p = 2MPa
Shaft materials, page 56 > 6-10 +0.000 +0.015 +0.013 +0.071 -0.036 +0.000
> 10-18 +0.000 +0.018 +0.016 +0.086 -0.043 +0.000 0.4
> 18-30 +0.000 +0.021 +0.020 +0.104 -0.052 +0.000
> 30-50 +0.000 +0.025 +0.025 +0.125 -0.062 +0.000 0.3
> 50-80 +0.000 +0.030 +0.030 +0.150 -0.074 +0.000
> 80-120 +0.000 +0.035 -0.036 +0.176 -0.087 +0.000 Coefficient of friction [µ] 0.2
> 120-180 +0.000 +0.040 +0.043 +0.203 +0.000 +0.100
Table 05: Important tolerances for plain bearings according 0.1
to ISO 3547-1 after press-fit 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40

Surface speed [m/s]
ASEAN 09/2023 ASEAN 09/2023 surface speed, p = 0.75MPa
Diagram 04: Coefficient of friction as a function of the

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