Sealing device

1. Apparatus for dewatering or washing material suspensions comprising at least one cylindrical rotary roll including a pair of axle journals, said at least one cylindrical rotary roll separated by a predetermined gap from a second element, a trough surrounding said at least one cylindrical rotary roll, said trough including an inlet for said material suspension, an outlet for said material suspension comprising said predetermined gap, a pair of bearing housings, a pair of bearings supported by said pair of bearing housings, said pair of axle journals being mounted in said pair of bearings, said pair of bearing housings being individually movable whereby said at least one cylindrical rotary roll can be angularly displaced with respect to said pair of bearing housings, each of said pair of bearing housings including a sealing means for creating a seal between said pair of bearing housings and said pair of axle journals, said sealing means comprising a stator ring, a pair of diagonally disposed guide pins supporting said stator ring with respect to said bearing housing, whereby said stator ring can be angled in a plane with respect to said pair of guide pins, a sealing ring for creating a seal between said stator ring and said axle journal, a bellows for creating a seal between said bearing housing and said stator ring, and at least one resilient member for urging said stator ring in abutment against said sealing ring.

2. The apparatus of claim 1 wherein at least one of said at least one cylindrical rotary roll and said second element is liquid permeable.

3. The apparatus of claim 2 wherein said second element comprises a second cylindrical rotary roll.