B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
80/43
B21B 31/08 (2006.01) B21B 31/07 (2006.01) F16B 31/04 (2006.01)
Patent
CA 1311377
ABSTRACT A hydraulic fastener is provided for mounting bearing assemblies on the end of a roll in a rolling mill stand. The fastener includes a hydraulic ring cylinder component having a front face directed toward a roll and an inner cylindrical surface adapted to fit onto a reduced diameter end section of the roll. A chamber extends about the circumference of the cylinder component and is open at the front face. A hydraulic ring piston component is slidably received in this chamber and has an inner face. A retaining ring is threadedly mounted in the cylinder component to hold at least a substantial portion of the piston in the chamber. Passageways are provided in the cylinder component for injecting grease into the chamber and into a space formed between the inner face of the piston and an opposing face of the chamber. A split ring is secured on the end section of the roll to retain the cylinder component in place. Zero-leakage two-directional seals are arranged between the cylinder component and the piston at both radially inner and radially outer sides of the piston to prevent escape of said grease.
559281
Hall George Gordon
Lawrence Gordon David
N. H. C. Inc.
Ridout & Maybee Llp
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