Bar peeling machine, has hydraulically controlled piston which impinges on main drive spindle bearing to apply force based on speed of spindle

摘要

The main drive spindle (2) is mounted in roller bearings (3,4) in axial and radial directions, and the bearings are subject to a constant spring force. At least one roller bearing is provided with a controllable tensioning member (8). The tensioning member may be hydraulically controllable piston which axially impinges on the bearing, based on the rotation speed of the main drive spindle.