Patent ID: 7549647

Claim:
Roll bearing sealing device, comprising: a ring-like extension connected to a bearing housing ( 5 ); a ring seal ( 8 ) permanently connected to the ring-like extension ( 7 ); a neck seal ( 4 ) preceded on a roll barrel side by the ring seal ( 8 ), the ring seal having a sealing lip ( 18 ); and a ring profile ( 11 ) with an L-shaped cross section is permanently connected by a first sidepiece ( 12 ) to an end surface ( 10 ) of a roll ( 1 ), the sealing lip ( 18 ) being arranged to rest on certain areas of the first sidepiece ( 12 ) with sealing contact, and a second sidepiece ( 13 ) of the L-shaped ring profile ( 11 ) extends over the ring seal ( 8 ) and part of the ring-like extension ( 7 ) so as to leave a slight gap and seal off the ring seal ( 8 ) and the ring-like extension ( 7 ) from the barrel of the roll, the ring-like extension ( 7 ) having a drain groove ( 9 ) on an external surface of the ring-like extension ( 7 ), the drain groove ( 9 ) being open radially outward, an area of the first sidepiece ( 12 ) in contact with the sealing lip ( 18 ) is at least one of hardened and subjected in certain areas to at least one of plasma nitriding and controlled oxidation.