Page 558 - IGUS Bearing

iglidur F2 iglidur F2
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+120°C +120°C
47MPa 47MPa
Bearing technology | Plain bearings | iglidur F2 Technical data
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Permissible surface speeds Chemicals Resistance 100.0 0.5
The maximum permitted surface speeds are based on the Alcohols + 10.0 0.4
operation period and the type of motion. A plain bearing is Diluted acids 0 0.3
the most stressed in long-term rotating motions. Here, the Diluted alkalines – 1.0
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maximum speed for iglidur F2 plain bearings is 0.8m/s. In Fuels + 0.2
practice, though, this level is rarely reached due to varying Greases, oils without additives + Surface pressure [MPa] 0.1 Coefficient of friction [µ] 0.1
application conditions. Hydrocarbons –
Surface speed, page 48 Strong acids – 0.01 0.001 0.01 0.1 1.0 10.0 0.0 0 10 20 30 40 50
Strong alkalines –
Temperature Surface speed [m/s] Load [MPa]
The ambient temperatures strongly influence the properties All data given at room temperature [+20°C] Diagram 01: Permissible pv values for iglidur F2 plain Diagram 05: Coefficient of friction as a function of the
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of plain bearings. With increasing temperatures, the Table 02: Chemical resistance bearing with a wall thickness of 1mm dry operation against pressure, v = 0.01m/s
Chemical table, page 1170
compressive strength of iglidur F2 plain bearings a steel shaft at +20°C, mounted in a steel housing
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decreases. Diagram 02 shows this inverse relationship. Rotating Oscillating linear
For temperatures over +70°C an additional securing is Long-term m/s 0.8 0.7 3.0 70 12
required. Short-term m/s 1.4 1.1 5.0 60 10
Application temperatures, page 53 50
Additional securing, page 53 Table 03: Maximum surface speeds 40 8
6
Dry Greases Oil Water 30 Free cutting steel Cf53, hard chromed HR carbon steel 304 stainless steel High grade steel
Friction and wear Coefficient of friction μ 0.16-0.22 0.01 0.05 0.03 20 4 H.a. aluminium
Coefficient of friction and wear resistance are dependent Table 04: Coefficient of friction against steel (Ra = 1μm, 10 Wear [µm/km] 2 Cf53 steel
on the application parameters (diagrams 04 and 05). Load [MPa] 0 0
Coefficient of friction and surfaces, page 51 50HRC) 20 40 60 80 100 120
Wear resistance, page 54 Temperature [°C]
Housing Plain bearings Shaft
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,
Shaft materials 0-3 +0.000 +0.010 +0.014 +0.054 -0.025 +0.000 function of temperature (47MPa at +20°C) pressure, p = 1MPa, v = 0.3m/s
Diagram 06 shows a summary of the results of tests with > 3-6 +0.000 +0.012 +0.020 +0.068 -0.030 +0.000
different shaft materials executed with plain bearings made > 6-10 +0.000 +0.015 +0.025 +0.083 -0.036 +0.000 7 500
of iglidur F2. In the lower region of the load, free cutting > 10-18 +0.000 +0.018 +0.032 +0.102 -0.043 +0.000 6 rotating
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oscillating
steel and hard-anodised aluminium shafts, as well as HR > 18-30 +0.000 +0.021 +0.040 +0.124 -0.052 +0.000 5 +23°C 400
carbon steel and hard-chromed steel shafts prove to be > 30-50 +0.000 +0.025 +0.050 +0.150 -0.062 +0.000 4 +60°C 300
the most favourable in rotating applications with iglidur F2 > 50-80 +0.000 +0.030 +0.060 +0.180 -0.074 +0.000 3 200
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plain bearings with respect to wear. Diagram 07 shows > 80-120 +0.000 +0.035 +0.072 +0.212 -0.087 +0.000 2
significantly less wear in rotation compared to pivoting > 120-180 +0.000 +0.040 +0.085 +0.245 -0.100 +0.000 Deformation [%] 1 Wear [µm/km] 100
movements over the entire load range. 0 0
Shaft materials, page 56 Table 05: Important tolerances for plain bearings according 0 15 30 45 5 10 20 30 40
to ISO 3547-1 after press-fit
Load [MPa] Load [MPa]
Installation tolerances Diagram 03: Deformation under pressure and temperature Diagram 07: Wear for oscillating and rotating applications
iglidur F2 plain bearings are standard bearings for with shaft material Cf53 hardened and ground steel, as a
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shafts with h-tolerance (recommended minimum h9). The function of the load
bearings are designed for press-fit into a housing machined 0.6
to a H7 tolerance. After being assembled into a nominal 0.5
Coefficient of friction [µ] 0.2
size housing, the inner diameter automatically adjusts to 0.4
the E10 tolerances. 0.3
Testing methods, page 61

0.1
0.0
0.2
0.1
Surface speed [m/s] 0.3 0.4 0.5 0.6 0.7
ASEAN 09/2023 ASEAN 09/2023 surface speed, p = 1MPa
Diagram 04: Coefficient of friction as a function of the

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