Page 582 - IGUS Bearing

iglidur J UV iglidur J UV
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+90°C +90°C
35MPa 35MPa
Bearing technology | Plain bearings | iglidur J UV Technical data
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Permissible surface speeds Installation tolerances 100.0 0.30
The low coefficient of friction and no stick-slip tendency iglidur J UV plain bearings are standard bearings for 10.0 0.25
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of iglidur J UV plain bearings are particularly important shafts with h-tolerance (recommended minimum h9). The 0.20
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at very low speeds. However, iglidur J UV can also be bearings are designed for press-fit into a housing machined 1.0 0.15
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used for high speeds of over 1m/s. In both cases the to a H7 tolerance. After being assembled into a nominal 0.10
static friction is very low and stick slip does not occur. The size housing, the inner diameter automatically adjusts to Surface pressure [MPa] 0.1 Coefficient of friction [µ] 0.05
maximum values shown in table 03 can only be achieved the E10 tolerances. For particular dimensions the tolerance
at low pressures. At the given speeds, friction can cause differs depending on the wall thickness (please see product 0.01 0.001 0.01 0.1 1.0 10.0 0.00
a temperature increase to maximum permissible levels. In range table). 0 5 10 15 20 25 30 35
practice, though, this level is rarely reached due to varying Testing methods, page 61 Surface speed [m/s] Load [MPa]
application conditions. Diagram 01: Permissible pv values for iglidur J UV plain Diagram 05: Coefficient of friction as a function of the
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Surface speed, page 48 bearing with a wall thickness of 1mm dry operation against pressure, v = 0.01m/s
Chemicals Resistance a steel shaft at +20°C, mounted in a steel housing.
Temperature Alcohols +
In the case of a permissible long-term application temperature Diluted acids 0 up to – 120 2.5
of +90°C, iglidur J UV will even withstand +120°C for Diluted alkalines + 100
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short periods. The wear rises with increasing temperatures. Fuels + 2.0
For temperatures over +60°C an additional securing is Greases, oils without additives + 80 1.5
required. Hydrocarbons + 60 1.0 Free cutting steel Cf53, hard chromed 304 stainless steel
Application temperatures, page 53 Strong acids – 40 H.a. aluminium HR carbon steel High grade steel
Additional securing, page 53 Strong alkalines + up to 0 20 Wear [µm/km] 0.5 Cf53 steel
All data given at room temperature [+20°C] Load [MPa] 0 0.0
Friction and wear Table 02: Chemical resistance 20 30 40 50 60 70 80
Similar to wear resistance, the coefficient of friction µ also Chemical table, page 1170 Temperature [°C]
changes with the surface speed and load (diagrams 04 Diagram 02: Maximum recommended surface pressure as a Diagram 06: Wear, rotating with different shaft materials,
and 05). Rotating Oscillating linear function of temperature (35MPa at +20°C) pressure, p = 1MPa, v = 0.3m/s
Coefficient of friction and surfaces, page 51 Long-term m/s 1.5 1.1 8.0
Wear resistance, page 54 Short-term m/s 2.2 1.7 12.0 12.5 350
Table 03: Maximum surface speeds 300 rotating
Shaft materials 10.0 +23°C 250 oscillating
The friction and wear are also dependent, to a large Dry Greases Oil Water 7.5 +60°C 200
degree, on the mating partner. With increasing shaft Coefficient of friction μ 0.08-0.19 0.09 0.04 0.04 5.0 150
surface finish, the coefficient of friction also increases. Table 04: Coefficient of friction against steel (Ra = 1μm, 100
For iglidur J UV a ground surface with an average 50HRC) Deformation [%] 2.5 Wear [µm/km] 50
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surface finish Ra = 0.8µm is recommended. Diagram 0.0 0
06 and 07 display a summary of the results of tests with Housing Plain bearings Shaft 0.0 12.5 25.0 37.5 50.0 0 1 2 5 10 20 45
different shaft materials executed with plain bearings Ø d1 [mm] H7 [mm] E10 [mm] h9 [mm] Load [MPa]
made of iglidur J UV. When compared to most other 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
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iglidur materials, iglidur J UV plain bearings have very > 3-6 +0.000 +0.012 +0.020 +0.068 -0.030 +0.000 with different shaft materials,
low wear results at low loads compared with all shaft > 6-10 +0.000 +0.015 +0.025 +0.083 -0.036 +0.000 p = 2MPa
materials tested. Also, for increasing loads up to 5 MPa, > 10-18 +0.000 +0.018 +0.032 +0.102 -0.043 +0.000 0.25
the wear resistance of iglidur J UV plain bearings is > 18-30 +0.000 +0.021 +0.040 +0.124 -0.052 +0.000
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excellent. If the shaft material you plan on using is not > 30-50 +0.000 +0.025 +0.050 +0.150 -0.062 +0.000 0.20
shown in these test results, please contact us. > 50-80 +0.000 +0.030 +0.060 +0.180 -0.074 +0.000
Shaft materials, page 56 > 80-120 +0.000 +0.035 +0.072 +0.212 -0.087 +0.000 Coefficient of friction [µ] 0.15
> 120-180 +0.000 +0.040 +0.085 +0.245 -0.100 +0.000
Table 05: Important tolerances for plain bearings according 0.10
to ISO 3547-1 after press-fit 0.1 0.2 0.3 0.4 0.5

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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