SPINDLE OF FACE MOTOR Russian patent published in 1996 - IPC

FIELD: mining industry. SUBSTANCE: spindle of face motor includes body, shaft with flow groove, multirow oil-filled ball bearing mounted between radial bearings and having outer and inner races. In the middle of ball bearing there is put bearing unit in the form of inner and outer bushings and seal located between ball and radial bearings. Spindle is fitted with throttle placed between upper radial bearing and upper seal. Seals are made in the form of mobile and immobile contact rings. Longitudinal and annular grooves are made in external surfaces of outer races of ball bearing, immobile contact rings of seals and external bushing. Bearing unit can be manufactured in the form of lubricator. EFFECT: expanded application field, improved operational efficiency. 2 cl, 2 dwg