igutex® TX1 - material data

Mechanical specifications

With increasing temperatures, the compressive strength of igutex TX1 plain bearings decreases. Diagram 02 shows this inverse relationship. At the short-term permitted application temperature of +170°C, the permitted surface pressure is still 100MPa. The maximum recommended surface pressure is a mechanical material parameter. No conclusions regarding the tribological properties can be drawn from this. Diagram 03 shows the elastic deformation of igutex TX1 under radial loads.

Further information on the load

Diagram 02: Maximum recommended surface pressure as a function of temperature (200MPa at +20°C)

X = temperature [°C]
Y = pressure [MPa]

Diagram 03: Deformation under load and temperatures

X = load [MPa]
Y = deformation [%]

Friction and wear

It must be noted that a mating surface that is too rough will increase the friction. Shafts that are too smooth also increase the coefficient of friction. We recommend shaft roughnesses (Ra) of 0.4 to a maximum of 0.7μm. The coefficient of friction of the igutex TX1 plain bearings is also highly dependent on the speed and the load. As the surface speed increases, the coefficient of friction also rises rapidly. In contrast, the coefficient of friction decreases continuously with the load.

Diagram 05: Coefficients of friction as a function of the load, v = 0.01m/s

X = load [MPa]
Y = coefficient of friction μ

Shaft materials

In heavy-duty applications, we generally recommend using hardened shafts. This particularly applies when working with igutex TX1. However, acceptable wear rates are also achieved on soft shafts with heavy-duty pivoting of less than 100MPa. The comparison of the wear rate during rotation and pivoting shown in diagram 07 emphasises that the strength of igutex TX1 lies in heavy-duty pivoting.

Further information on shaft materials

Diagram 06: Wear, rotating application with different shaft materials, p = 76MPa, v = 0.01m/s

X = shaft material
Y = wear [μm/km]

A = Cf53
B = Cf53, hard-chromed
C = 304 SS
D = HR carbon steel
E = St52 gas-nitrided
F = Cromax 280X
G = Cromax 482H

Diagram 07: Wear in oscillating and rotating applications with Cf53 as a function of pressure

X = pressure [MPa]
Y = wear [μm/km]

A = rotating
B = oscillating