Inner seal ring for rolling mill oil film bearing

Seal for a joint or juncture – Seal between relatively movable parts – Diverse and distinct dynamic seals

Reexamination Certificate

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Details

C277S552000, C384S485000, C072S247000

Reexamination Certificate

active

06851676

ABSTRACT:
An inner seal ring is disclosed for use in an oil film bearing for a roll in a rolling mill. The roll has a neck with an intermediate section tapering from an end face to a reduced diameter end section contained within a sleeve. The sleeve is fixed in relation to the roll neck and is journalled for rotation in a bushing contained within a chock. A flexible neck seal is mounted on the intermediate section of the roll neck for rotation with the roll within a seal end plate fixed to the chock. The inner seal ring comprises a circular midsection with an annular face on one side and with inner and outer flanges projecting from an opposite side. The inner flange is configured to engage the neck seal, the outer flange is configured to coact in spaced relationship with the seal end plate to define a first labyrinth, and the annular face is contoured to coact in an abutting relationship with the roll end face in defining a second labyrinth.

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patent: 2825301 (2001-01-01), None
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patent: 2076481 (1981-12-01), None

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