Page 630 - IGUS Bearing

iglidur B iglidur B
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+100°C +100°C
40MPa 40MPa
Bearing technology | Plain bearings | iglidur B Technical data
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Permissible surface speeds Chemicals Resistance 100.0 0.7
iglidur B plain bearings can be continuously used up to Alcohols + up to 0 10.0 0.6
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0.7m/s in rotating applications. The frictional heat provides Diluted acids 0 up to – 0.5
the speed limits. In practice, though, this level is rarely Diluted alkalines – 1.0 0.4
reached due to varying application conditions. Fuels – 0.3
Surface speed, page 48 Greases, oils without additives – Surface pressure [MPa] 0.1 Coefficient of friction [µ] 0.2
Hydrocarbons – 0.1
Temperature Strong acids – 0.01 0.001 0.01 0.1 1.0 10.0 0.0 0 10 20 30 40
The maximum long-term application temperature is Strong alkalines –
+100°C. For temperatures over +50°C an additional Surface speed [m/s] Load [MPa]
securing is required. The wear resistance also decreases All data given at room temperature [+20°C] Diagram 01: Permissible pv values for iglidur B plain bearing Diagram 05: Coefficient of friction as a function of the
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exponentially from +70°C upwards. Table 02: Chemical resistance with a wall thickness of 1mm dry operation against a steel pressure, v = 0.01m/s
Chemical table, page 1170
Application temperatures, page 53 shaft at +20°C, mounted in a steel housing.
Additional securing, page 53
Rotating Oscillating linear
Long-term m/s 0.7 0.5 2.0 120 2.5
Friction and wear Short-term m/s 1.0 0.7 3.0 100
The coefficient of friction increases slightly with the speed 2.0
and decreases with the load. Surface finishes (Ra) of the Table 03: Maximum surface speeds 80 1.5
shaft between 0.4-0.6µm are ideal. As far as the bearing Dry Greases Oil Water 60 1.0 Free cutting steel Cf53, hard chromed 304 stainless steel
load is not too high, the attained coefficient of wear is pretty Coefficient of friction μ 0.18-0.28 0.09 0.04 0.04 40 H.a. aluminium HR carbon steel High grade steel
good. An increase in load results in a disproportionate Table 04: Coefficient of friction against steel (Ra = 1μm, 20 Wear [µm/km] 0.5 Cf53 steel
increase in abrasion. Load [MPa] 0 0.0
Coefficient of friction and surfaces, page 51 50HRC) 20 30 40 50 60 70 80 90 100
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 (40MPa at +20°C) pressure, p = 1MPa, v = 0.3m/s
The influence of the shaft is not very large on the wear > 3-6 +0.000 +0.012 +0.030 +0.105 -0.030 +0.000
resistance. Diagram 06 and 07 clarify that very similar wear > 6-10 +0.000 +0.015 +0.040 +0.130 -0.036 +0.000 18.0 200
data are attained with different shaft materials. > 10-18 +0.000 +0.018 +0.050 +0.160 -0.043 +0.000 15.0 180 rotating
oscillating
Shaft materials, page 56 160
> 18-30 +0.000 +0.021 +0.065 +0.195 -0.052 +0.000 12.0 +23°C 140
+60°C 120
> 30-50 +0.000 +0.025 +0.080 +0.240 -0.062 +0.000 9.0 100
Installation tolerances > 50-80 +0.000 +0.030 +0.100 +0.290 -0.074 +0.000 80
iglidur B plain bearings are standard bearings for shafts > 80-120 +0.000 +0.035 +0.120 +0.340 -0.087 +0.000 6.0 60
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with h-tolerance (recommended minimum h9). The > 120-180 +0.000 +0.040 +0.145 +0.395 -0.100 +0.000 Deformation [%] 3.0 Wear [µm/km] 40
20
bearings are designed for press-fit into a housing machined 0.0 0
to a H7 tolerance. After being assembled into a nominal Table 05: Important tolerances for plain bearings according 0 10 20 30 40 0 10 20 30 40
size housing, the inner diameter automatically adjusts to to ISO 3547-1 after press-fit Load [MPa] Load [MPa]
the D11 tolerances. For particular dimensions the tolerance Diagram 03: Deformation under pressure and temperature Diagram 07: Wear for oscillating and rotating applications
differs depending on the wall thickness (please see product with shaft material Cf53 hardened and ground steel, as a
range table). function of the load
Testing methods, page 61 0.5

Coefficient of friction [µ] 0.2
Product range 0.4
iglidur B plain bearings are manufactured to special order. 0.3
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0.1
0.10
0.05
Surface speed [m/s] 0.15 0.20 0.25 0.30
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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