Page 531 - IGUS Bearing
P. 531

igutex  TX2                                                                                                                                                                                                             igutex  TX2
            ®
                                                                                                                                                                                                                                     ®
         +130°C                                                                                                                                                                                                                   +130°C
         180MPa                                                                                                                                                                                                                   180MPa
                      Bearing technology | Plain bearings | igutex  TX2                                                             Technical data
                                                                                                    ®
                                                                                                                                      General properties                                                    Testing method

                                                                                                                                    Density                                        g/cm³          1.77                         -60°C up to
          Ø 20.0-                                                                                                                   Colour sliding layer                                         black                         +130°C
          80.0mm
                                                                                                                                    Colour supporting layer                                  reddish brown
                                                                                                                                    Max. moisture absorption at +23°C/50% r.h.   % weight         1.0         DIN 53495
                                                                                                                                    Max. moisture absorption                     % weight         1.3                          180MPa
                                                                                                                                    Mechanical properties
          Also available
          as:                                                                                                                       Max. permissible surface pressure (+20°C)       MPa           180
                      The technical shafts specialist                                                                               Shore D hardness                                              91          DIN 53505
                                                                                                                                    Physical and thermal properties
                      Wear-resistant under extreme loads                                                                            Max. application temperature long-term           °C          +130
          Bar stock,                                                                                                                Max. application temperature short-term          °C          +140
          round bar                                                                                                                                                                                                             FOOD
          Page 743                                                                                                                  Min. application temperature                     °C           -60
                      The new igutex  TX2 bearings were developed for use in particularly heavily loaded applications. The
                                   ®
                      high-strength, wound structure with integrated solid lubricants ensures low-friction and maintenance-free     Electrical properties
                      operation - without any external lubrication.                                                                 Specific transitional resistance                Ωcm        insulating     DIN IEC 93
                      ● 	Particularly low wear in heavy-duty areas                                                                  Surface resistance                               Ω         insulating     DIN 53482
                                                                         ®
                      ● 	Up to three and a half times the wear resistance of igutex  TX1                                            Table 01: Material properties
          Bar stock,   ● 	Good coefficient of wear and therefore a long service life
          plate
          Page 773
                      Typical application areas                                                                                     igutex   TX2 plain bearings represent very high load   Friction and wear
                                                                                                                                         ®
                      ● 	Agricultural engineering                                                                                   capacity with high radial loads and good abrasion   Please note that a sliding surface with a rough surface
                      ● 	Utility and construction vehicles                                                                          resistance. The special design not only ensures excellent   finish will increase the friction. Shafts that are too smooth
                      ● 	Heavy equipments
                                                                                                                                    dimensional stability due to the long-fibre winding but also   also increase the coefficient of friction of the bearing.
          tribo-tape liner
          Page 781                                                                                                                  allows lubrication and maintenance-free operation thanks   Surface finishes (Ra) of the shaft between 0.4-0.7µm are
                                                                                                                                    to solid lubricants. Dirt and media resistance round off the   ideal. Furthermore, the coefficient of friction of igutex  TX2
                                                                                                                                                                                                                                  ®
                                                                                                                                    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 coefficient
                                                                                                                                    Typical applications for igutex  TX2 plain bearings are   of friction however decreases continuously.
                                                                                                                                                              ®
          Guide rings                                                                                                               pivoting movements under high loads at comparatively
          Page 641
                                                                                                                                    low speeds.                                        Shaft materials
                                                                                                                                    Table 03                                           In high load applications, we generally recommend the
                                                                                                                                                                                       use of hardened shafts. This particularly applies when
                                                                                                                                    Temperature                                        using igutex  TX2. However, acceptable wear rates are
                                                                                                                                                                                                 ®
                                                                                                                                    igutex  TX2 is an extremely temperature-resistant material.   also achieved on soft shafts with heavy-duty pivoting of
                                                                                                                                         ®
          Two hole                                                                                                                  The long-term upper temperature limit of +130°C permits   less than 100MPa.
          flange                                                                                                                    the broad use in applications typical for the agricultural,   Shaft materials, page 56
          bearings
          Page 667                                                                                                                  utility vehicle or construction equipment sectors. The
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                                                                                                                                    press-in and press-out forces of igutex  TX2 plain bearings   Installation tolerances
                                                                                                                                    are very high over the entire temperature range. As a result,   igutex  TX2 plain bearings are standard bearings for shafts
                                                                                                                                                                                            ®
                                                                                                                                    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
          Moulded
          special parts                                                                                                             observed at temperatures above +100°C and, in some   H7 tolerance.
          Page 696                                                                                                                  cases axial securing is therefore recommended above this
                                                                                                                                    temperature.





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