DEVICE FOR MOUNTING AND DEMOUNTING A BACK-UP ROLL BEARING UNIT

摘要

The invention relates to a device for raising and withdrawing a bearing unit (3) of a back-up roll (1) of a roll stand. Said bearing unit is comprised of a piece (4) to be inserted inside which has a roll pin bearing arranged therei n. According to the invention, a change-over device (16) is configured so that it can be temporarily coupled to the bearing unit (3) and is provided for effecting an axial movement toward and away from the back-up roll (1).