Patent ID: 7836581
Filing Date: 2010-11-23
Classification: B21B,F16C,Y10T

Abstract:
1. A device for mounting a bearing assembly ( 3 ), which comprises a chock and a roll neck bearing mounted in the chock, on a roll neck ( 1 ) of a backup roll of a rolling stand and for dismounting a bearing assembly ( 3 ) from the roll neck ( 1 ) of the backup roll of the rolling stand, wherein an anchorage fixture ( 5 ), which extends in the axial direction of the roll, acts on the roll neck ( 1 ), the anchorage fixture ( 5 ) supports a washer ( 6 ) that is axially displaceable on the anchorage fixture ( 5 ), which washer ( 6 ) is directly supported at one end on a nut ( 8 ) that can be moved on the anchorage fixture ( 5 ) by screwing and at the other end on the bearing assembly ( 3 ); a hydraulic pretensioning tool ( 16 ) can be temporarily assigned to the nut ( 8 ) and can apply a mounting force between the anchorage fixture ( 5 ) and the washer ( 6 ), which is supported on the bearing assembly ( 3 ), a dismounting unit ( 11 ) can be temporarily coupled with the bearing assembly ( 3 ); and a hydraulic cylinder ( 15 ) of the dismounting unit ( 11 ) can be supported on the roll neck ( 1 ).