Page 537 - IGUS Bearing

igutex TX3 igutex TX3
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+130°C +130°C
180MPa 180MPa
Bearing technology | Plain bearings | igutex TX3 Technical data
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General properties Testing method

Density g/cm³ 1.9 -60°C up to
Ø 20.0- Colour black +130°C
80.0mm
Max. moisture absorption at +23°C/50% r.h. % weight 0.1 DIN 53495
Max. moisture absorption % weight 0.1
Mechanical properties 180MPa
Max. permissible surface pressure (+20°C) MPa 180
Also available
as: Shore D hardness 91 DIN 53505
The endurance runner for the highest loads Physical and thermal properties °C +130
Max. application temperature long-term
For pivoting applications under extreme loads Max. application temperature short-term °C +140
Bar stock, Min. application temperature °C -60
round bar FOOD
Page 743 Electrical properties
Outstanding rigidity and durability especially under high radial loads during pivoting operations characterise
the plain bearings in the new igutex TX3 series. Thanks to the closed-loop wound structure, excellent Specific transitional resistance Ωcm insulating DIN IEC 93
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dimensional stability is achieved in cases of major forces and impacts. Surface resistance Ω insulating DIN 53482
● Low wear rates in dry operation under extreme conditions Table 01: Material properties
● No lubrication and maintenance
Bar stock, ● Tested in the igus test laboratory at up to 100MPa and pivoting of 0.01m/s
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plate
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Page 773 ● Long service life due to low wear; no additional lubrication required igutex TX3 plain bearings represent very high load Friction and wear
capacity with high radial loads and good abrasion Please note that a sliding surface with a rough surface
Typical application areas resistance. The special design not only ensures excellent finish will increase the friction. Shafts that are too smooth
● Agricultural engineering dimensional stability due to the long-fibre winding but also also increase the coefficient of friction of the bearing.
● Utility and construction vehicles allows lubrication and maintenance-free operation thanks Surface finishes (Ra) of the shaft between 0.4-0.7µm are
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tribo-tape liner ● Heavy equipments to solid lubricants. Dirt and media resistance round off the ideal. Furthermore, the coefficient of friction of igutex TX3
Page 781 list of properties. plain bearings largely depends on the speed and load. As
the surface speed increases, the coefficient of friction will
Permissible surface speeds quickly increase as well. With increasing load, the coeffi-
Typical applications for igutex TX3 plain bearings are cient of friction however decreases continuously.
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pivoting movements under high loads at comparatively
low speeds. Shaft materials
Guide rings
Page 641 Table 03 In high load applications, we generally recommend the
use of hardened shafts. This particularly applies when
Temperature using igutex TX3. However, acceptable wear rates are
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igutex TX3 is an extremely temperature-resistant material. also achieved on soft shafts with heavy-duty pivoting of
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The long-term upper temperature limit of +130°C permits less than 100MPa.
the broad use in applications typical for the agricultural, Shaft materials, page 56
Two hole utility vehicle or construction equipment sectors. The
flange
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bearings press-in and press-out forces of igutex TX3 plain bearings Installation tolerances
Page 667
are very high over the entire temperature range. As a result, igutex TX3 plain bearings are standard bearings for shafts
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additional axial securing is usually not necessary. Although with h-tolerance (recommended minimum h9). The bearings
these forces remain very high, a certain decrease can be are designed for press-fit into a housing machined to a
observed at temperatures above +100°C and, in some H7 tolerance.
Moulded cases axial securing is therefore recommended above this
special parts temperature.
Page 696

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