Roll with centring guide - has mechanical centring elements at bearing rings at roll ends

摘要

The roll comprises a hollow cylinder (2) rotating about its axis and forming the working circumference (3) of the roll, an externally supported stationary cross bar (1) with a space between its circumference (6) and the internal circumference (4) of the hollow cylinder (2), a hydraulic support system (40) for producing a line pressure in the roll gap (5), and a bearing ring (10) at each end of the cross bar (1). The bearing rings are supported on the cross bar (1) by means of rolling bearings (18). The hollow cylinder (2) is positively centred - in spite of its dia. changes - at the bearing rings. USE/ADVANTAGE - For mfr. of hollow rolls with internal support. It eliminates seal wear and vibration danger inherent in known alternatives.