Page 325 - IGUS Bearing

iglidur V400 iglidur V400
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+200°C +200°C
45MPa 45MPa
Bearing technology | Plain bearings | iglidur V400 Technical data
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Permissible surface speeds Chemicals Resistance 100.0 0,7
iglidur V400 also permits high surface speeds due to the Alcohols + 10.0 0,6
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high temperature resistance. The very favourable coefficient Diluted acids + 0,5
of friction of the bearing enables maximum surface speeds Diluted alkalines + 1.0 0,4
up to 1.3m/s. In linear applications, the permissible speeds Fuels + 0,3
are even higher and can be up to 3.0m/s. Greases, oils without additives + Surface pressure [MPa] 0.1 Coefficient of friction [µ] 0,2
Surface speed, page 48 Hydrocarbons + 0.01 0,1
Strong acids + 0.001 0.01 0.1 1.0 10.0 0,0 0 5 10 15 20 25 30 35 40 45
Temperature Strong alkalines –
The maximum long-term application temperature is Surface speed [m/s] Load [MPa]
+200°C. For temperatures over +100°C an additional All data given at room temperature [+20°C] Diagram 01: Permissible pv values for iglidur V400 with a Diagram 05: Coefficient of friction as a function of the
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securing is required. Then, however, the wear resistance Table 02: Chemical resistance wall thickness of 1mm dry operation against a steel shaft at pressure, v = 0.01m/s
Chemical table, page 1170
of the bearings is very good and adopts a leading position +20°C, mounted in a steel housing
among all iglidur materials. When temperatures increase, Rotating Oscillating linear
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the compressive strength of iglidur V400 plain bearings Long-term m/s 0.9 0.6 2.0 80 12
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decreases. Diagram 02 shows this inverse relationship. Short-term m/s 1.3 0.9 3.0 70 11
10
Application temperatures, page 53 60 9
Additional securing, page 53 Table 03: Maximum surface speeds 50 8
7
40 6
Dry Greases Oil Water 30 5 Free cutting steel Cf53, hard chromed HR carbon steel 304 stainless steel High grade steel
Friction and wear Coefficient of friction μ 0.15-0.20 0.09 0.04 0.04 20 4 H.a. aluminium
3
The coefficient of friction is dependent on the bearing‘s Table 04: Coefficient of friction against steel (Ra = 1μm, 10 Wear [µm/km] 2 Cf53 steel
1
stressing capacity (diagrams 04 and 05). The coefficient of Load [MPa] 0 0
friction of iglidur V400 is very constant. No other iglidur 50HRC) 20 50 80 120 150 200
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plain bearing material exhibits a lower variance in the coeffi- Housing Plain bearings Shaft Temperature [°C]
cients of friction, even when the shaft material is altered. Ø d1 [mm] H7 [mm] F10 [mm] h9 [mm] Diagram 02: Maximum recommended surface pressure as a Diagram 06: Wear, rotating with different shaft materials,
Coefficient of friction and surfaces, page 51 0-3 +0.000 +0.010 +0.006 +0.046 -0.025 +0.000 function of temperature (45MPa at +20°C) pressure, p = 1MPa, v = 0.3m/s
Wear resistance, page 54
> 3-6 +0.000 +0.012 +0.010 +0.058 -0.030 +0.000
> 6-10 +0.000 +0.015 +0.013 +0.071 -0.036 +0.000 5.0 200
Shaft materials > 10-18 +0.000 +0.018 +0.016 +0.086 -0.043 +0.000 180 rotating
oscillating
The influence of the shaft material on the wear resistance > 18-30 +0.000 +0.021 +0.020 +0.104 -0.052 +0.000 4.0 +23°C 160
140
is bigger than on the friction. Here, even at low loads > 30-50 +0.000 +0.025 +0.025 +0.125 -0.062 +0.000 3.0 +60°C 120
(0.75MPa), significant differences occur, as shown in > 50-80 +0.000 +0.030 +0.030 +0.150 -0.074 +0.000 2.0 100
80
diagram 06. With regard to wear, iglidur V400 plain > 80-120 +0.000 +0.035 -0.036 +0.176 -0.087 +0.000 60
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bearings show better values in rotating applications than > 120-180 +0.000 +0.040 +0.043 +0.203 +0.000 +0.100 Deformation [%] 1.0 Wear [µm/km] 40
20
in pivoting movements (diagram 07). 0.0 0
Shaft materials, page 56 Table 05: Important tolerances for plain bearings according 0 15 30 45 0 5 10 15 20 25 30 35 40 45
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
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iglidur V400 plain bearings are standard bearings for with shaft material Cf53 hardened and ground steel, as a
shafts with h-tolerance (recommended minimum h9). function of the load
The bearings are designed for press-fit into a housing 0.5
machined to a H7 tolerance. After being assembled into a 0.4
nominal size housing, in standard cases the inner diameter
automatically adjusts to the F10 tolerances. For particular 0.3
dimensions the tolerance differs depending on the wall Coefficient of friction [µ]
thickness (please see product range table). 0.2
Testing methods, page 61 0.1
0.05
0.10
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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