Page 264 - IGUS Bearing

iglidur D iglidur D
®
®
+90°C +90°C
23MPa 23MPa
Bearing technology | Plain bearings | iglidur D Technical data
®
Permissible surface speeds Chemicals Resistance 100.0 0.35
iglidur D plain bearings are suitable for high surface Alcohols + 10.0 0.30
®
speeds. Speeds of up to 10.0m/s are permitted in linear Diluted acids 0 up to – 0.25
motions. The maximum values shown in table 03 can only Diluted alkalines + 1.0 0.20
be achieved at low pressures. The specified values show Fuels + 0.15
the speed at which due to friction an increase in tempera- Greases, oils without additives + Surface pressure [MPa] 0.1 Coefficient of friction [µ] 0.10
ture up to the long-term permitted value can occur. Hydrocarbons + 0.05
Surface speed, page 48 Strong acids – 0.01 0.001 0.01 0.1 1.0 10.0 0.00 0 5 10 15 20
Strong alkalines + up to 0
Temperature Surface speed [m/s] Load [MPa]
With increasing temperatures, the compressive strength All data given at room temperature [+20°C] Diagram 01: Permissible pv values for iglidur D plain bearing Diagram 05: Coefficient of friction as a function of the
®
®
of iglidur D plain bearings decreases. Diagram 02 shows Table 02: Chemical resistance with a wall thickness of 1 mm dry operation against a steel pressure, v = 0.01m/s
Chemical table, page 1170
this inverse relationship. The temperatures prevailing in shaft at +20°C, mounted in a steel housing
the bearing system also have an influence on the wear. Rotating Oscillating linear
For temperatures over +50°C an additional securing is Long-term m/s 1.5 1.1 8.0 30 8
required. Short-term m/s 3.0 2.1 10.0 7
Application temperatures, page 53 6
Additional securing, page 53 Table 03: Maximum surface speeds 20 5
4
Dry Greases Oil Water 3 Free cutting steel Cf53, hard chromed HR carbon steel 304 stainless steel High grade steel
Friction and wear Coefficient of friction μ 0.08-0.26 0.09 0.04 0.04 10 2 H.a. aluminium
Similar to wear resistance, the coefficient of friction µ also Table 04: Coefficient of friction against steel (Ra = 1μm, Wear [µm/km] 1 Cf53 steel
changes with the surface speed and load (diagram 04 and Load [MPa] 0 0
05). In the Ra range between 0.4-0.6µm, the coefficient of 50HRC) 20 30 40 50 60 70 80 90
friction attains its optimum value. Housing Plain bearings Shaft Temperature [°C]
Coefficient of friction and surfaces, page 51 Ø d1 [mm] H7 [mm] E10 [mm] h9 [mm] Diagram 02: Maximum recommended surface pressure as a Diagram 06: Wear, rotating with different shaft materials,
Wear resistance, page 54 function of temperature (23MPa at +20°C) pressure, p = 1MPa, v = 0.3m/s
0-3 +0.000 +0.010 +0.014 +0.054 -0.025 +0.000
> 3-6 +0.000 +0.012 +0.020 +0.068 -0.030 +0.000
Shaft materials > 6-10 +0.000 +0.015 +0.025 +0.083 -0.036 +0.000 10 10
Diagram 06 and 07 display a summary of the results of > 10-18 +0.000 +0.018 +0.032 +0.102 -0.043 +0.000 9 rotating
oscillating
tests with different shaft materials executed with plain > 18-30 +0.000 +0.021 +0.040 +0.124 -0.052 +0.000 8 +23°C 8
7
bearings made of iglidur D. If the shaft material you plan > 30-50 +0.000 +0.025 +0.050 +0.150 -0.062 +0.000 6 +60°C 6
®
on using is not shown in these test results, please contact > 50-80 +0.000 +0.030 +0.060 +0.180 -0.074 +0.000 4 5
4
us. > 80-120 +0.000 +0.035 +0.072 +0.212 -0.087 +0.000 3
Shaft materials, page 56 Deformation [%] 2 2
> 120-180 +0.000 +0.040 +0.085 +0.245 -0.100 +0.000 Wear [µm/km] 1
Table 05: Important tolerances for plain bearings according 0 0
Installation tolerances 0 4 8 12 16 20 24 Cf53 hard 304SS HR carbon
iglidur D plain bearings are standard bearings for shafts to ISO 3547-1 after press-fit Load [MPa] chromed steel
®
with h-tolerance (recommended minimum h9). The Diagram 03: Deformation under pressure and temperature Diagram 07: Wear for rotating and oscillating applications
bearings are designed for press-fit into a housing machined with different shaft materials, p = 2MPa
to a H7 tolerance. After being assembled into a nominal
size housing, the inner diameter automatically adjusts to 0.4
the E10 tolerances. For particular dimensions the tolerance
differs depending on the wall thickness (please see product 0.3
range table).
Testing methods, page 61 Coefficient of friction [µ] 0.2

Product range
iglidur D plain bearings are manufactured to special order. 0.1 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40
®
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

262 3D-CAD, finder and service life calculation ... www.igus-asean.com/D Lubrication-free made easy ... from stock ... no minimum order quantity 263