Page 591 - IGUS Bearing

iglidur N54 iglidur N54
®
®
+80°C +80°C
36MPa 36MPa
Bearing technology | Plain bearings | iglidur N54 Technical data
®
Permissible surface speeds Installation tolerances 100.0 0.5
Although the typical applications of iglidur N54 plain iglidur N54 plain bearings are standard bearings for 10.0 0.4
®
®
bearings are generally in the area of intermittent operation, shafts with h-tolerance (recommended minimum h9). The 0.3
the maximum attainable speeds can be quite high, bearings are designed for press-fit into a housing machined 1.0
depending on the type of motion. The speeds stated in to a H7 tolerance. After being assembled into a nominal 0.2
table 03 are limit values for the lowest bearing loads. With size housing, the inner diameter automatically adjusts to Surface pressure [MPa] 0.1 Coefficient of friction [µ] 0.1
higher loads, the permitted speed drops with the extent of the E10 tolerances. For particular dimensions the tolerance
the load due to the limitations by the pv value. differs depending on the wall thickness (please see product 0.01 0.001 0.01 0.1 1.0 10.0 0.0
Surface speed, page 48 range table). 0 10 20 30 40 50 60 70 80
Testing methods, page 61 Surface speed [m/s] Load [MPa]
Temperature Diagram 01: Permissible pv values for iglidur N54 plain Diagram 05: Coefficient of friction as a function of the
®
The short-term permissible temperature limit is +120°C, bearing with a wall thickness of 1mm dry operation against pressure, v = 0.01m/s
which allows the use of iglidur N54 plain bearings in all Chemicals Resistance a steel shaft at +20°C, mounted in a steel housing.
®
applications involving elevated ambient temperatures. Alcohols + up to 0
With increasing temperatures, the compressive strength of Diluted acids 0 up to + 40 10
iglidur N54 plain bearings decreases. When considering Diluted alkalines + 9
®
temperatures, the additional frictional heat in the bearing Fuels + 30 8
7
system must be taken into account. For temperatures over Greases, oils without additives + 6
+60°C an additional securing is required. Hydrocarbons + 20 5 Free cutting steel Cf53, hard chromed 304 stainless steel
4
Application temperatures, page 53 Strong acids – 10 3 H.a. aluminium HR carbon steel High grade steel
Additional securing, page 53 Strong alkalines 0 Wear [µm/km] 2 Cf53 steel
1
All data given at room temperature [+20°C] Load [MPa] 0 0
Friction and wear Table 02: Chemical resistance 20 40 80 120
The coefficient of friction of iglidur N54 is low. Please Chemical table, page 1170 Temperature [°C]
®
note that a sliding surface with a rough surface finish will Diagram 02: Maximum recommended surface pressure as a Diagram 06: Wear, rotating with different shaft materials,
increase the friction. Surface finishes (Ra) of the shaft Rotating Oscillating linear function of temperature (36MPa at +20°C) pressure, p = 1MPa, v = 0.3m/s
between 0.1-0.4µm are ideal. The coefficient of friction of Long-term m/s 0.8 0.6 1.0
iglidur N54 plain bearings is only marginally dependent Short-term m/s 1.5 1.1 2.0 5.0 200
®
on the surface speed. The influence of the load is greater; Table 03: Maximum surface speeds 180 rotating
oscillating
an increase in load lowers the coefficient of friction to as 4.0 +23°C 160
140
low as 0.8. Dry Greases Oil Water 3.0 +60°C 120
Coefficient of friction and surfaces, page 51 Coefficient of friction μ 0.15-0.23 0.09 0.04 0.04 2.0 100
80
Wear resistance, page 54 Table 04: Coefficient of friction against steel (Ra = 1μm, 60
50HRC) Deformation [%] 1.0 Wear [µm/km] 40
20
Shaft materials 0.0 0
It is important to select a suitable shaft material. As a rule, Housing Plain bearings Shaft 0 20 40 65 0 10 20 30
iglidur N54 is suitable for use with hard or soft shafts, Ø d1 [mm] H7 [mm] E10 [mm] h9 [mm] Load [MPa] Load [MPa]
®
but "hard" shaft surfaces tend to give better service life. 0-3 +0.000 +0.010 +0.014 +0.054 -0.025 +0.000 Diagram 03: Deformation under pressure and temperature Diagram 07: Wear for oscillating and rotating applications
Starting at loads of 1MPa, wear increases measurably and > 3-6 +0.000 +0.012 +0.020 +0.068 -0.030 +0.000 with shaft material Cf53 hardened and ground steel, as a
continuously. If the shaft material you plan on using is not > 6-10 +0.000 +0.015 +0.025 +0.083 -0.036 +0.000 function of the load
shown in these test results, please contact us. > 10-18 +0.000 +0.018 +0.032 +0.102 -0.043 +0.000 0.5
Shaft materials, page 56 > 18-30 +0.000 +0.021 +0.040 +0.124 -0.052 +0.000 0.4
> 30-50 +0.000 +0.025 +0.050 +0.150 -0.062 +0.000
> 50-80 +0.000 +0.030 +0.060 +0.180 -0.074 +0.000 0.3
> 80-120 +0.000 +0.035 +0.072 +0.212 -0.087 +0.000 Coefficient of friction [µ]
> 120-180 +0.000 +0.040 +0.085 +0.245 -0.100 +0.000 0.2
Table 05: Important tolerances for plain bearings according 0.1
to ISO 3547-1 after press-fit 0.05 0.10 0.15 0.20 0.25 0.30

Surface speed [m/s]
ASEAN 09/2023 ASEAN 09/2023 surface speed, p = 1MPa
Diagram 04: Coefficient of friction as a function of the

588 3D-CAD, finder and service life calculation ... www.igus-asean.com/N54 Lubrication-free made easy ... from stock ... no minimum order quantity 589