iglidur® GLW - Material data

With plain bearings made from iglidur GLW, we can offer our customers an alternative to iglidur G for high-volume production applications. Featuring similar mechanical properties as iglidur G, iglidur GLW plain bearings are primarily recommended for static loads. With regard to these applications, in which the dynamic properties of iglidur G to a large extent are unimportant, they represent a cost-effective alternative.

The ambient temperatures have a strong influence on the properties of plain bearings. As temperatures in the bearing system rise, bearing wear also increases. Additional protection is required at temperatures higher than +80°C.

Temperature limits for iglidur GLW:

iglidur GLW has been developed for low to medium surface speeds. During continuous operation, a maximum speed of 0.8m/s (rotating) or 2.5m/s (linear) is permissible. The maximum values shown in the table can only be achieved at low pressures. In practice, these values are rarely reached, due to the increasing temperatures approaching or exceeding the maximum permitted value.

Surface speeds of various iglidur materials

Like the wear resistance, the coefficient of friction μ also changes with the load and the surface speed (diagrams 04 and 05).

Coefficients of friction against steel (Ra = 1μm, 50HRC):

iglidur GLW plain bearings are standard bearings for shafts with h-tolerance (recommended minimum h9). The bearings are designed for press-fit into a housing machined to a H7 tolerance. After being assembled into a nominal size housing, the inner diameter automatically adjusts to the E10 tolerances. For particular dimensions the tolerance differs depending on the wall thickness (please see product range table).

iglidur GLW plain bearings have good resistance to chemicals. They are resistant to most lubricants. Most weak organic and inorganic acids do not attack iglidur GLW.

All data at room temperature [+20 °C],      + resistant      0 conditionally resistant      - non-resistant