Page 438 - IGUS Bearing

iglidur A200 iglidur A200
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+80°C +80°C
18MPa 18MPa
Bearing technology | Plain bearings | iglidur A200 Technical data
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Permissible surface speeds Chemicals Resistance 100.0 0.8
iglidur A2000 was developed for low surface speeds. Alcohols + up to 0 10.0 0.6
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The given values in table 03 indicate the limits at which Diluted acids 0 up to –
an increase up to the continuous permissible temperature Diluted alkalines + 1.0 0.4
occurs. This increase is a result of friction. In practice, Fuels +
though, this level is rarely reached due to varying applica- Greases, oils without additives + Surface pressure [MPa] 0.1 Coefficient of friction [µ] 0.2
tion conditions. Hydrocarbons +
Surface speed, page 48 Strong acids – 0.01 0.001 0.01 0.1 1.0 10.0 0.0 0 5 10 15 20
Strong alkalines 0
Temperature Surface speed [m/s] Load [MPa]
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iglidur A200 plain bearings can be used at temperatures All data given at room temperature [+20°C] Diagram 01: Permissible pv values for iglidur A200 with a Diagram 05: Coefficient of friction as a function of the
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up to +170°C for short periods. The temperatures prevailing Table 02: Chemical resistance wall thickness of 1mm dry operation against a steel shaft at pressure, v = 0.01m/s
Chemical table, page 1170
in the bearing system also have an influence on the wear. +20°C, mounted in a steel housing
For temperatures over +50°C an additional securing is Rotating Oscillating linear
required. Long-term m/s 0.8 0.6 2.0 40 6
Application temperatures, page 53 Short-term m/s 1.5 1.1 3.0 5
Additional securing, page 53 30
Table 03: Maximum surface speeds 4
Friction and wear Dry Greases Oil Water 20 3 Free cutting steel Cf53, hard chromed 304 stainless steel
Similar to wear resistance, the coefficient of friction µ also Coefficient of friction μ 0.10-0.40 0.09 0.04 0.04 10 2 H.a. aluminium HR carbon steel High grade steel
changes with the surface speed and load (diagrams 04 Table 04: Coefficient of friction against steel (Ra = 1μm, Wear [µm/km] 1 Cf53 steel
and 05). Load [MPa] 0 0
Coefficient of friction and surfaces, page 51 50HRC) 20 30 40 50 60 70 80
Wear resistance, page 54 Temperature [°C]
Housing Plain bearings Shaft
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,
Shaft materials 0-3 +0.000 +0.010 +0.020 +0.080 -0.025 +0.000 function of temperature (18MPa at +20°C) pressure, p = 1MPa, v = 0.3m/s
Diagram 06 and 07 display a summary of the results of > 3-6 +0.000 +0.012 +0.030 +0.105 -0.030 +0.000
tests with different shaft materials executed with plain > 6-10 +0.000 +0.015 +0.040 +0.130 -0.036 +0.000 10 70
bearings made of iglidur A200. In pivoting applications > 10-18 +0.000 +0.018 +0.050 +0.160 -0.043 +0.000 60 rotating
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below a load of 2MPa, the wear of iglidur A200 plain > 18-30 +0.000 +0.021 +0.065 +0.195 -0.052 +0.000 8 +23°C 50 oscillating
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bearings is higher than in rotating applications with equal > 30-50 +0.000 +0.025 +0.080 +0.240 -0.062 +0.000 6 +60°C 40
load. Here the HR carbon steel shaft is a positive exception. > 50-80 +0.000 +0.030 +0.100 +0.290 -0.074 +0.000 4 30
Shaft materials, page 56 20
> 80-120 +0.000 +0.035 +0.120 +0.340 -0.087 +0.000 2
> 120-180 +0.000 +0.040 +0.145 +0.395 -0.100 +0.000 Deformation [%] Wear [µm/km] 10
Installation tolerances 0 0
iglidur A200 plain bearings are standard bearings for Table 05: Important tolerances for plain bearings according 0 3 6 9 12 15 18 Cf53 hard 304SS HR carbon
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shafts with h tolerance (recommended minimum h9). The to ISO 3547-1 after press-fit Load [MPa] chromed steel
bearings are designed for press-fit into a housing machined Diagram 03: Deformation under pressure and temperature Diagram 07: Wear for rotating and oscillating applications
to a H7 tolerance. After being assembled into a nominal with different shaft materials, p = 2MPa
size housing, the inner diameter automatically adjusts to
the D11 tolerances. For particular dimensions the tolerance 1.0
differs depending on the wall thickness (please see product 0.9
Coefficient of friction [µ] 0.6
range table). 0.8
Testing methods, page 61 0.7

0.5
0.4
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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