Blurring of the thrust disc of the thrust bearing is a big problem for the owner of the device. However, such cases can be regenerated without dismantling the rotor, which is costly and time-consuming work.

To this end, we have developed a device for turning and grinding thrust discs as well another face surfaces on turbine rotors, without disassembly.

Local surface hardening, caused by an increase in temperature due to friction – causes of damage – are always a major obstacle that needs to be taken into account in the regeneration of the thrust disc. Usually, the requirements for surface quality and deviation of shape are very high, hence the several-step regeneration technology.

Photo. Thrust disc after dismantling the thrust bearing. Dark color is the area of abrasion.

Photo. The same disc after the first pass. Still visible the deepest circumferential features.

Phot. Another passage, this time the entire surface is devoid of circumferential features.

Photo: Done. After grinding. Disc rescued !