Patent ID: 7578061

Claim:
A method of preloading a tapered roller bearing ( 1 ) secured with a conical seat on a tapering roll neck ( 3 ) of a roll ( 2 ), in particular, a back-up roll, arranged in a roll stand by means of a chock ( 4 ), by application of a hydraulic pressure thereto, a bearing inner ring ( 18 ), rollers, ( 17 ) and a bearing outer ring ( 13 ) of the tapered roller bearing ( 1 ) being subjected to pressure produced during rolling and being radially preloaded against the roll ( 2 ), characterized in that the tapered roller bearing ( 1 ) is preloaded by an annular pressure applying device ( 5 ) arranged on each side of the roll ( 2 ) in the chock ( 4 ) and supported relative to the roll ( 2 ), and in that upon application of pressure, the pressure applying device ( 5 ) displaces the chock ( 4 ) with the bearing outer ring ( 13 ) in a direction toward the roll ( 2 ) or displaces the roll ( 2 ) in an opposite direction.