Højhastighedsspindel til en mineraluldsfiberudtrækningsmaskine

摘要

The invention relates to a spindle for a mineral wool fibre-forming machine employing free centrifuging. The inventive spindle comprises a shaft (2) which is mounted on rolling bearings (3) inside a bearing (4) in the form of a hollow shaft. The aforementioned rolling bearings are life time lubricated precision rolling bearings and the hollow shaft-type bearing is a one-piece machined part which enables the spindle to rotate at speeds of the order of 1200 t/mn.