Page 551 - IGUS Bearing

iglidur F iglidur F
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+140°C +140°C
105MPa 105MPa
Bearing technology | Plain bearings | iglidur F Technical data
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Permissible surface speeds Chemicals Resistance 1,000 0.5
The maximum permitted surface speeds are based on the Alcohols + up to 0 100 0.4
operation period and the type of motion. A plain bearing Diluted acids 0 up to – 0.3
is the most stressed in long-term rotating motions. Here, Diluted alkalines + 10
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the maximum speed for iglidur F plain bearings is 0.8 Fuels + 0.2
m/s. The speeds stated in table 03 are limit values for the Greases, oils without additives + Surface pressure [MPa] 1 Coefficient of friction [µ] 0.1
lowest bearing loads. In practice, though, this level is rarely Hydrocarbons +
reached due to varying application conditions. Strong acids – 0.1 0.001 0.01 0.1 1.0 10.0 0.0
Surface speed, page 48 Strong alkalines + up to 0 0 10 20 30 40 50 60 70 80
Surface speed [m/s] Load [MPa]
All data given at room temperature [+20°C]
Temperature Diagram 01: Permissible pv values for iglidur F plain bearing Diagram 05: Coefficient of friction as a function of the
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The ambient temperatures strongly influence the properties Table 02: Chemical resistance with a wall thickness of 1mm dry operation against a steel pressure, v = 0.01m/s
Chemical table, page 1170
of plain bearings. With increasing temperatures, the shaft at +20°C, mounted in a steel housing.
compressive strength of iglidur F plain bearings Rotating Oscillating linear
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decreases. The wear also increases. For temperatures Long-term m/s 0.8 0.6 3.0 160 12
over +105°C an additional securing is required. Short-term m/s 1.5 1.1 6.0 140 10
Application temperatures, page 53 120
Additional securing, page 53 Table 03: Maximum surface speeds 100 8
80 6
Dry Greases Oil Water 60 Free cutting steel Cf53, hard chromed HR carbon steel 304 stainless steel High grade steel
Friction and wear Coefficient of friction μ 0.10-0.39 0.09 0.04 0.04 40 4 H.a. aluminium
In dry operation, the coefficient of friction of iglidur F Table 04: Coefficient of friction against steel (Ra = 1μm, 20 Wear [µm/km] 2 Cf53 steel
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plain bearings is not as favourable as those of many other Load [MPa] 0 0
iglidur materials. However iglidur plain bearings can be 50HRC) 20 50 80 120 140
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lubricated without any problems, and iglidur F bearings Housing Plain bearings Shaft Temperature [°C]
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attain excellent results among the lubricated iglidur Ø d1 [mm] H7 [mm] D11 [mm] h9 [mm] Diagram 02: Maximum recommended surface pressure as a Diagram 06: Wear, rotating with different shaft materials,
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bearings. 0-3 +0.000 +0.010 +0.020 +0.080 -0.025 +0.000 function of temperature (150MPa at +20°C) pressure, p = 1MPa, v = 0.3m/s
Coefficient of friction and surfaces, page 51 > 3-6 +0.000 +0.012 +0.030 +0.105 -0.030 +0.000
Wear resistance, page 54 10 40
> 6-10 +0.000 +0.015 +0.040 +0.130 -0.036 +0.000
rotating
> 10-18 +0.000 +0.018 +0.050 +0.160 -0.043 +0.000 8 oscillating
Shaft materials > 18-30 +0.000 +0.021 +0.065 +0.195 -0.052 +0.000 +23°C 30
Diagram 06 and 07 display a summary of the results of > 30-50 +0.000 +0.025 +0.080 +0.240 -0.062 +0.000 6 +60°C
tests with different shaft materials executed with plain > 50-80 +0.000 +0.030 +0.100 +0.290 -0.074 +0.000 4 20
bearings made of iglidur F. In the lowest load range, the > 80-120 +0.000 +0.035 +0.120 +0.340 -0.087 +0.000 10
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hard-chromed shafts prove to be the most suitable shaft > 120-180 +0.000 +0.040 +0.145 +0.395 -0.100 +0.000 Deformation [%] 2 Wear [µm/km]
in rotating applications with iglidur F bearings. 0 0
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Shaft materials, page 56 Table 05: Important tolerances for plain bearings according 0 15 30 45 60 75 90 105 Cf53 hard 304SS HR carbon
to ISO 3547-1 after press-fit chromed steel
Load [MPa]
Installation tolerances Diagram 03: Deformation under pressure and temperature Diagram 07: Wear for rotating and oscillating applications
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iglidur F plain bearings are standard bearings for shafts with different shaft materials,
with h-tolerance (recommended minimum h9). After being p = 2MPa
assembled into a nominal size housing, the inner diameter 0.6
automatically adjusts to the D11 tolerances. For particular
Coefficient of friction [µ] 0.4
dimensions the tolerance differs depending on the wall 0.5
thickness (please see product range table).
Testing methods, page 61

0.3
0.05
0.10
Surface speed [m/s] 0.15 0.20 0.25 0.30 0.35
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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