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Material table
General specification
Unit
igutex® TX1
Test method
density
g/cm³
2,1
Colour
grey-green
max. Moisture absorption at 23°C/50% room humidity.
% by weight
0,2
DIN 53495
max. total moisture absorption
wt.-%
0,5
Sliding friction coefficient, dynamic, against steel
µ
0,04 - 0,14
pv value, max. (dry)
MPa x m/s
0,89
Mechanical specification
flexural modulus
MPa
12.000
DIN 53457
flexural strength at 20°C
MPa
55
DIN 53452
Compressive strength
MPa
220
maximum recommended surface pressure (20°C)
MPa
200
Shore D hardness
94
DIN 53505
Physical and thermal specification
Upper long-term application temperature
°C
+120
Upper short-term application temperature
°C
+170
Lower application temperature
°C
-60
thermal conductivity
[W/m x K]
0,24
ASTM C 177
coefficient of thermal expansion (at 23°C)
[K-1 x 10-5]
3
DIN 53752
Electrical specification
Volume resistivity
Ωcm
> 1011
DIN IEC 93
surface resistance
Ω
> 1013
DIN 53482
Table 01: Material data
igutex TX1 plain bearings represent very high load capacity with high radial loads and good abrasion resistance. The special design ensures high dimensional stability due to the long-fibre winding and solid lubricants and this ensures that a lubrication and maintenance-free operation is possible. High dirt and media resistance complete the specification profile.
Mechanical specification
The compressive strength of igutex® TX1 plain bearings decreases with increasing temperatures. diagram. 02 illustrates this relationship. At the short-term permissible application temperature of +170 °C, the permissible surface pressure is still 100 MPa. The maximum recommended surface pressure represents a mechanical material parameter. Conclusions about the tribology cannot be drawn from this.
diagram. 03 shows the elastic deformation of igutex® TX1 under radial load.
Shaft materials
The use of hardened shafts is generally recommended in the high-load range. This applies in particular to the use of igutex® TX1. However, even on soft shafts, acceptable wear rates are still achieved in high-load swivelling below 100 MPa. The comparison of the wear rate in rotation and swivelling in diagram 07 makes it clear that the strength of igutex® TX1 lies in high-load swivelling.
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