trunnion

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trunnion

[′trən·yən]
(design engineering)
Either of two opposite pivots, journals, or gudgeons, usually cylindrical and horizontal, projecting one from each side of a piece of ordnance, the cylinder of an oscillating engine, a molding flask, or a converter, and supported by bearings to provide a means of swiveling or turning.
A pin or pivot usually mounted on bearings for rotating or tilting something.
(engineering)
A tubular section of steel welded to the side of a pipe in order to help support the pipe.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Installation of the trunnions has stiffened up the flimsy sheet metal receiver.
I READ the reports of the Lord Collingwood celebrations with great interest, but would point out that the trunnions of the cannon at the base of the Collingwood Monument in Tynemouth are not the originals from the Royal Sovereign (as indeed they once were), which were made of wood and I can produce photographs of this.
He found trunnions with integrated vises could not be changed out, accommodate castings, were too flimsy to hold required tolerances and, with or without these limitations, far too expensive.
press also has a table capable of tilting 45[degrees] forward and 90[degrees] side-to-side, by loosening the knobs under the table while the table itself rotates on two trunnions.
Horizontal index trunnions provide access to three sides of the workpiece, allowing complete machining in one loading and, consequentially, driving significant production increases on vertical machining centers.
Multi-axis, swiveling trunnions reduce changeover times and D- and A-axes bring parts into position.
Automatic work changers feature two horizontal fixture trunnions that are mounted to a main trunnion swapper.
It has both an aluminum stock adapter and aluminum tube that has an integral adapter for mounting to AKMs with fixed stock rear trunnions. Since it is foreign-made, ensure the foreign parts count does not go over 10 by having sufficient American-made parts elsewhere.