Patent ID: 7862492

Claim:
A roller for a machine which processes a web of fibrous material, said roller comprising: two support core bearing arrangements; a support core including two end regions each of which is braced respectively by one of said support core bearing arrangements, each of said support core bearing arrangements defining a radially extending center plane; two outer covering bearing arrangements; an outer covering including an axially central region and two end regions, said outer covering being mounted, in said axially central region, in a radially fixed manner relative to said support core, each of said end regions of said outer covering being braced in a radially displaceable manner relative to said support core respectively by one of said outer covering bearing arrangements, each of said outer covering bearing arrangements defining a radially extending center plane, said radially extending center plane of each of said support core bearing arrangements and said radially extending center plane of each of said outer covering bearing arrangements lying axially within said outer covering, each of said outer covering bearing arrangements being spaced apart relative to each of said support core bearing arrangements; and two actuators, each of said end regions of said outer covering being displaceable respectively by one of said actuators, said actuators being one of adjustable and controllable such that the roller is configured for performing simultaneously a plurality of functions of at least two of an expander roller, a guide roller, a regulation roller, and a tension roller.