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iglidur W360 iglidur W360
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+180 °C +180 °C
75MPa 75MPa
Bearing technology | Plain bearings | iglidur W360 Technical data
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Permissible surface speeds Chemicals Resistance 100.0 0.25
iglidur W360 plain bearings are suitable for low and Alcohols 0 up to – 10.0 0.20
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medium speeds in rotating and oscillating applications. Diluted acids 0 up to – 0.15
The wear rates, however, are much better in the case Diluted alkalines + 1.0
of rotating applications. Good bearing support for linear Fuels + 0.10
movements is also possible with iglidur W360. Greases, oils without additives + Surface pressure [MPa] 0.1 Coefficient of friction [µ] 0.05
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Surface speed, page 48 Hydrocarbons + 0.01 0.00
Strong acids 0 up to – 10.0
Temperature Strong alkalines + 0.001 0.01 0.1 1.0 0 10 20 30 40 50 60 70
The temperature resistance makes iglidur W360 a very Surface speed [m/s] Load [MPa]
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universal material for plain bearings in different industries. All data given at room temperature [+20°C] Diagram 01: Permissible pv values for iglidur W360 with a Diagram 05: Coefficient of friction as a function of the
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Application temperatures up to +200°C are permissible for Table 02: Chemical resistance wall thickness of 1mm dry operation against a steel shaft at pressure, v = 0.01m/s
Chemical table, page 1170
short periods. For temperatures over +90°C an additional +20°C, mounted in a steel housing
securing is required. Rotating Oscillating linear
Application temperatures, page 53 Long-term m/s 1.2 0.9 3.0 80 0.20
Additional securing, page 53
Short-term m/s 2.7 2.0 5.0 0.16
60
Table 03: Maximum surface speeds
Friction and wear 0.12
The coefficient of friction of iglidur W360 in dry operation Dry Greases Oil Water 40 0.08
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against steel is very good. They constantly remain at a Coefficient of friction μ 0.07-0.21 0.09 0.04 0.04 20 Coefficient of friction [µ]
low level regardless of the speed. Diagram 04 shows this Table 04: Coefficient of friction against steel (Ra = 1μm, 0.04
inverse relationship. As the load increases, the coefficient Load [MPa] 0 0.00
of friction decreases. The correlation is especially strong 50HRC) 20 40 60 80 100 120 140 160 180 0.4 0.6 0.8 1.0 1.2 1.4 1.6
up to approximately 15MPa (diagram 05). Housing Plain bearings Shaft Temperature [°C] Shaft surface finish Ra [µm]
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: Coefficient of friction as a function of the shaft
Wear resistance, page 54 function of temperature (75MPa at +20°C) surface (Cf53 shaft)
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 4.0 5
In the case of W360, the shaft’s surface finish has practically > 10-18 +0.000 +0.018 +0.032 +0.102 -0.043 +0.000
no effect on the coefficient of friction in the range of up to > 18-30 +0.000 +0.021 +0.040 +0.124 -0.052 +0.000 3.0 4
1.6MPa (diagram 06). Diagram 07 shows results of testing > 30-50 +0.000 +0.025 +0.050 +0.150 -0.062 +0.000 +23°C 3
+60°C
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different shafts. iglidur W360 plain bearings are suitable > 50-80 +0.000 +0.030 +0.060 +0.180 -0.074 +0.000 2.0 2 Free cutting steel Cf53, hard chromed 304 stainless steel
for all sliding surfaces. During rotation with a load of 1MPa, > 80-120 +0.000 +0.035 +0.072 +0.212 -0.087 +0.000 1.0 H.a. aluminium Cf53 steel HR carbon steel High grade steel
all HC aluminium, Cf53 and stainless steel shafts stand out. > 120-180 +0.000 +0.040 +0.085 +0.245 -0.100 +0.000 Deformation [%] Wear [µm/km] 1
A similar picture also exists with other loads or pivoting 0.0 0
movements. If the shaft material you plan on using is not Table 05: Important tolerances for plain bearings according 0 25 50 75 100 125 150
shown in these test results, please contact us. to ISO 3547-1 after press-fit Load [MPa]
Shaft materials, page 56 Diagram 03: Deformation under pressure and temperature Diagram 07: Wear, rotating with different shaft materials,
p = 1MPa, v = 0.3m/s
Installation tolerances
iglidur W360 plain bearings are standard bearings for 0.25
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shafts with h tolerance (recommended minimum h9). The 0.20
bearings are designed for press-fit into a housing machined 0.15
to a H7 tolerance. After being assembled into a nominal
size housing, the inner diameter automatically adjusts to Coefficient of friction [µ] 0.10
the E10 tolerances. 0.05
Testing methods, page 61 0.00
0.0
0.3
Surface speed [m/s] 0.6 0.9 1.2 1.5
ASEAN 09/2023 ASEAN 09/2023 surface speed, p = 1MPa
Diagram 04: Coefficient of friction as a function of the

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