US 12,434,285 B2
Roller assembly
Holger Eckelsbach, Monheim (DE); and Stefan Peggen, Wassenberg (DE)
Assigned to SMS group GmbH, Düsseldorf (DE)
Appl. No. 18/027,564
Filed by SMS group GmbH, Düsseldorf (DE)
PCT Filed Sep. 13, 2021, PCT No. PCT/EP2021/075030
§ 371(c)(1), (2) Date Jun. 16, 2023,
PCT Pub. No. WO2022/063615, PCT Pub. Date Mar. 31, 2022.
Claims priority of application No. 102020212179.6 (DE), filed on Sep. 28, 2020.
Prior Publication US 2023/0311181 A1, Oct. 5, 2023
Int. Cl. B21B 13/00 (2006.01); B21B 31/07 (2006.01); F16J 15/3232 (2016.01)
CPC B21B 13/005 (2013.01) [B21B 31/078 (2013.01); F16J 15/3232 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A roller assembly, comprising:
two roller shafts mounted in a housing, wherein each of the roller shafts carries at least one roller ring in an axial end region thereof;
a seal assembly, by which the axial end regions of the roller shafts together with the roller rings are sealed relative to an interior of the housing; the seal assembly being secured at or in the housing,
wherein the sealing assembly comprises:
a seal support plate, which is secured at or in the housing or is part of the housing,
a respective slide ring for each of the roller shafts, the slide rings being arranged at the roller shafts,
a respective double lip seal for each of the roller shafts, each of the double lip seals having two sealing lips and being arranged at the seal support plate, wherein the sealing lips each bear against a respective one of the slide rings, and
a respective support ring for each of the roller shafts, each of the support rings being arranged in a radially inwardly disposed region of the respective double lip seal and radially supporting the respective double lip seal,
for each of the double lip seals, a rotation preventing feature by which rotation of the double lip seal relative to the seal support plate is prevented, the rotation preventing feature comprising:
at least one radial projection which is arranged at the seal support plate and engages in a corresponding recess in the double lip seal; or
at least one radial projection which is arranged at the double lip seal and engages in a corresponding recess in the seal support plate.