Patent ID: 6851676
Filing Date: 2005-02-08
Classification: B21B,F16C,F16J

Abstract:
1. An inner seal ring for use in an oil film bearing for a roll in a rolling mill, said roll having a neck with an intermediate section tapering from an end face of the roll to a reduced diameter end section contained within a sleeve, the sleeve being fixed in relation to the neck and being journalled for rotation in a bushing contained within a chock, with a flexible neck seal mounted on the intermediate section of the roll neck for rotation with the roll within a seal end plate fixed to the chock, said inner seal ring comprising: a circular midsection with an annular face on one side and with inner and outer flanges projecting from an opposite side, said annular face having a plurality of ridges separated by grooves, said ridges being partially circular and offset both radially and circumferentially, said inner flange being configured to engage the neck seal, said outer flange being configured to coact in spaced relationship with the seal end plate to define a first labyrinth, and said ridges on said annular face being contoured to coact in an abutting relationship with the roll end face in defining a second labyrinth.