SPINDELEINHEIT EINER PRAEZISIONSWERKZEUGMASCHINE

摘要

The assembly, has a device for preventing drawing in of air into the housing from ambient atmosphere through the labyrinth seal in the rear lid. The device includes a passage having its inlet communicating with the ambient atmosphere and its outlet communicating with the clearance between the spindle flange and the front lid. The spindle assembly is primarily intended for use in finishing boring machines in which the tool spindles are of a flange-type design and are mounted in antifriction bearings. The spindle assembly prolongs the period of high-accuracy performance of the antifriction bearings and their service life in general.