Page 457 - IGUS Bearing

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iglidur iglidur
UW160 UW160
+90°C +90°C
15MPa 15MPa
Bearing technology | Plain bearings | iglidur UW160 Technical data
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Permissible surface speeds Installation tolerances 100.0 0.3
The maximum recommended surface speed is based on iglidur UW160 plain bearings are standard bearings for 10.0
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the frictional heat generated at the bearing surface. The shafts with h-tolerance (recommended minimum h9). The 0.2
temperature should only be permitted to increase to a bearings are designed for press-fit into a housing machined 1.0
value that will ensure a sustainable use of the bearing with to a H7 tolerance. After being assembled into a nominal 0.1
respect to wear and dimensional integrity. The maximum size housing, the inner diameter automatically adjusts to Surface pressure [MPa] 0.1 Coefficient of friction [µ]
values specified in table 03 are for the dry operation. In the E10 tolerances. 0.0
media-based application, sometimes significantly higher Testing methods, page 61 0.01 0.001 0.01 0.1 1.0 10.0 0.0 2.5 5.0 7.5 10.0 12.5 15.0
speeds are achieved due to reduced heat generation
depending on the installation. Surface speed [m/s] Load [MPa]
Surface speed, page 48 Chemicals Resistance Diagram 01: Permissible pv values for iglidur UW160 with a Diagram 05: Coefficient of friction as a function of the
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Alcohols + wall thickness of 1mm dry operation against a steel shaft at pressure, v = 0.01m/s
Temperature Diluted acids + +20°C, mounted in a steel housing
iglidur UW160 was developed for use in liquid media Diluted alkalines +
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in the normal and medium temperature range. As in the Fuels + up to 0 20 15
case of all thermoplastics, the compression strength of Greases, oils without additives +
iglidur UW160 decreases when temperatures rise. The Hydrocarbons + 15 12
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temperatures prevailing in the bearing system also have Strong acids + 9
an influence on the wear. The wear rises with increasing Strong alkalines + 10 6 Free cutting steel Cf53, hard chromed 304 stainless steel
temperatures. For temperatures over +70°C an additional All data given at room temperature [+20°C] 5 H.a. aluminium HR carbon steel High grade steel
securing is required. Table 02: Chemical resistance Wear [µm/km] 3 Cf53 steel
Application temperatures, page 53 Chemical table, page 1170 Load [MPa] 0 0
Additional securing, page 53 20 30 40 50 60 70 80 90
Rotating Oscillating linear Temperature [°C]
Friction and wear Long-term m/s 0.3 0.3 1.0 Diagram 02: Maximum recommended surface pressure as a Diagram 06: Wear, rotating with different shaft materials,
Similar to wear resistance, the coefficient of friction µ also Short-term m/s 0.5 0.4 2.5 function of temperature (15MPa at +20°C) pressure, p = 1MPa, v = 0.3m/s
changes with the surface speed and load (diagram 04 and Table 03: Maximum surface speeds
05). The influence of surface speed and surface finish of the 10 160
shaft on the friction coefficient is low, but with increasing Dry Greases Oil Water rotating
oscillating
radial load the coefficient of friction decreases significantly, Coefficient of friction μ 0.17-0.31 0.08 0.03 0.03 8 +23°C 120
mainly in the range of up to 7.5MPa. Table 04: Coefficient of friction against steel (Ra = 1μm, 6 +60°C
Coefficient of friction and surfaces, page 51 50HRC) 4 80
Wear resistance, page 54 40
Housing Plain bearings Shaft Deformation [%] 2 Wear [µm/km]
Shaft materials Ø d1 [mm] H7 [mm] E10 [mm] h9 [mm] 0 0
Diagram 06 shows results of testing different shaft 0-3 +0.000 +0.010 +0.014 +0.054 -0.025 +0.000 0 6 12 18 5 10 15 20
materials with plain bearings made from iglidur UW160. > 3-6 +0.000 +0.012 +0.020 +0.068 -0.030 +0.000 Load [MPa] Load [MPa]
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In the example of a rotational movement with radial loads > 6-10 +0.000 +0.015 +0.025 +0.083 -0.036 +0.000 Diagram 03: Deformation under pressure and temperature Diagram 07: Wear for oscillating and rotating applications
of 1MPa and a speed of 0.3m/s, it becomes clear that > 10-18 +0.000 +0.018 +0.032 +0.102 -0.043 +0.000 with shaft material Cf53 hardened and ground steel, as a
iglidur UW160 achieves good coefficient of wear with > 18-30 +0.000 +0.021 +0.040 +0.124 -0.052 +0.000 function of the load
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the most varied shafts. It is also clear that there are better > 30-50 +0.000 +0.025 +0.050 +0.150 -0.062 +0.000 0.6
iglidur materials for dry operation. As with many other > 50-80 +0.000 +0.030 +0.060 +0.180 -0.074 +0.000 0.5
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Coefficient of friction [µ] 0.2
iglidur materials in dry operation, diagram 07 shows the > 80-120 +0.000 +0.035 +0.072 +0.212 -0.087 +0.000 0.4
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significantly higher wear in rotation than in pivoting with > 120-180 +0.000 +0.040 +0.085 +0.245 -0.100 +0.000 0.3
otherwise identical parameters. Table 05: Important tolerances for plain bearings according
Shaft materials, page 56 to ISO 3547-1 after press-fit 0.1

0.0
0.1
0.2
Surface speed [m/s] 0.3 0.4 0.5
ASEAN 09/2023 ASEAN 09/2023 surface speed, p = 1MPa
Diagram 04: Coefficient of friction as a function of the

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