Thrust support for a fluid motor used in drilling wells

摘要

The thrust support incorporates a rolling-contact thrust bearing with the inner and outer races rigidly attached to the shaft and housing of the fluid motor, respectively. Interposed between said races are balls. Positioned near the end faces of the thrust bearing are multi-row mechanical seals in the form of inner and outer friction discs which make up friction packs and are rigidly attached to the inner and outer races of the thrust bearing, respectively, and are rigidly attachable to the shaft and housing of the motor, respectively.