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iglidur R iglidur R
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+90°C +90°C
23MPa 23MPa
Bearing technology | Plain bearings | iglidur R Technical data
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Permissible surface speeds Installation tolerances 100.0 0.35
iglidur R plain bearings are suitable for high surface iglidur R plain bearings are standard bearings for shafts 10.0 0.30
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speeds. Speeds of up to 5.0m/s are permitted in linear with h-tolerance (recommended minimum h9). The 0.25
motions. The maximum values shown in table 03 can only bearings are designed for press-fit into a housing machined 1.0 0.20
be achieved at low pressures. The specified values show to a H7 tolerance. After being assembled into a nominal 0.15
the speed at which due to friction an increase in temperature size housing, the inner diameter automatically adjusts to Surface pressure [MPa] 0.1 Coefficient of friction [µ] 0.10
up to the long-term permitted value can occur. the E10 tolerances. For particular dimensions the tolerance 0.05
Surface speed, page 48 differs depending on the wall thickness (please see product 0.01 0.001 0.01 0.1 1.0 10.0 0.00
range table). 0 5 10 15 20
Temperature Testing methods, page 61 Surface speed [m/s] Load [MPa]
With increasing temperatures, the compressive strength Diagram 01: Permissible pv values for iglidur R plain bearing Diagram 05: Coefficient of friction as a function of the
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of iglidur R plain bearings decreases. Diagram 02 shows with a wall thickness of 1mm dry operation against a steel pressure, v = 0.01m/s
this inverse relationship. The temperatures prevailing in Chemicals Resistance shaft at +20°C, mounted in a steel housing.
the bearing system also have an influence on the wear. Alcohols +
For temperatures over +50°C an additional securing is Diluted acids 0 up to – 25 4.0
required. Diluted alkalines + 3.5
Application temperatures, page 53 Fuels + 20 3.0
Additional securing, page 53 Greases, oils without additives + 15 2.5
Hydrocarbons + 10 2.0 Free cutting steel Cf53, hard chromed 304 stainless steel
Friction and wear Strong acids – 1.5 H.a. aluminium HR carbon steel High grade steel
1.0
Similar to wear resistance, the coefficient of friction µ also Strong alkalines + up to 0 5 Wear [µm/km] 0.5 Cf53 steel
changes with the surface speed and load (diagram 04 All data given at room temperature [+20°C] Load [MPa] 0 0.0
and 05). iglidur R is especially suitable for applications in Table 02: Chemical resistance 20 30 40 50 60 70 80 90
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which high pv values are induced mainly through the high Chemical table, page 1170 Temperature [°C]
surface speed rather than surface pressure. Less distinct is Diagram 02: Maximum recommended surface pressure as a Diagram 06: Wear, rotating with different shaft materials,
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the dependency of the coefficient of friction of the iglidur R Rotating Oscillating linear function of temperature (23MPa at +20°C) pressure, p = 1MPa, v = 0.3m/s
plain bearings on the shaft surface. Long-term m/s 0.8 0.6 3.5
Coefficient of friction and surfaces, page 51 Short-term m/s 1.2 1.0 5.0 10 10
Wear resistance, page 54 Table 03: Maximum surface speeds 9 rotating
8 8 oscillating
+23°C 7
Shaft materials Dry Greases Oil Water 6 +60°C 6
Diagram 06 and 07 display a summary of the results of Coefficient of friction μ 0.09-0.25 0.09 0.04 0.04 4 5
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tests with different shaft materials executed with plain Table 04: Coefficient of friction against steel (Ra = 1μm, 3
bearings made of iglidur R. At 0.3m/s and 1MPa, the high 50HRC) Deformation [%] 2 Wear [µm/km] 2
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grade steel and Cf53 shafts are the best materials. With 0 0
increasing loads the iglidur R bearings feature the best Housing Plain bearings Shaft 0 4 8 12 16 20 24 Cf53 hard 304SS HR carbon
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wear behaviour with Cf53 and 304 stainless steel shafts. In Ø d1 [mm] H7 [mm] E10 [mm] h9 [mm] Load [MPa] chromed steel
pivoting applications, the hard-chromed shaft proves to be 0-3 +0.000 +0.010 +0.014 +0.054 -0.025 +0.000 Diagram 03: Deformation under pressure and temperature Diagram 07: Wear for rotating and oscillating applications
the ideal mating surface. If the shaft material you plan on > 3-6 +0.000 +0.012 +0.020 +0.068 -0.030 +0.000 with different shaft materials, p = 2MPa
using is not shown in these test results, please contact us. > 6-10 +0.000 +0.015 +0.025 +0.083 -0.036 +0.000
Shaft materials, page 56 > 10-18 +0.000 +0.018 +0.032 +0.102 -0.043 +0.000 0.5
> 18-30 +0.000 +0.021 +0.040 +0.124 -0.052 +0.000 0.4
> 30-50 +0.000 +0.025 +0.050 +0.150 -0.062 +0.000
> 50-80 +0.000 +0.030 +0.060 +0.180 -0.074 +0.000 0.3
> 80-120 +0.000 +0.035 +0.072 +0.212 -0.087 +0.000 Coefficient of friction [µ]
> 120-180 +0.000 +0.040 +0.085 +0.245 -0.100 +0.000 0.2
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

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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