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Chrispin,<br><br> There are no teeth on either the stationary aperture nor the rotating-element.<br>The rotating-element is a beveled trapezoid of tool-steel rolled into a half-cylinder by cross-peen hammer, die, and tongs.<br>It was heated to incandescence with blown wood charcoal for rolling. <br>It was then welded to a heavy disc with generous fillet inside, and deep perimeter scarf filled with weld.<br>The weldment was then trued in an engine lathe between centers of it's own keyed hub, and shaft.<br><br> Slight clearance is tolerated between rotating-element and stationary-aperture, however, the two shall not touch.<br>Heavy thrust, and journal bearings are required to hold the slow-speed shaft in rigid radial, and axial alignment.<br>I find only special bearings to be adequate.<br><br>Jim,<br><br> Only Jussi Aysto, Wayne Kieth and me have built axial-chunkers so far.<br>Jussi, and Wayne both use tough truck-axles.<br>I wanted a machine that could move in the forest nimbly where severe equipment limitations exist.<br><br> I shall post the link to the GEK-wiki, soon:<br>http://www.youtube.com/watch?v=lZCiCL6cffM<br><br>Alex,<br><br> Never blink when feeding this beast!<br>It needs a gravity-hopper with spring-loaded log-stops.<br>Toss in a log, and stand clear.<br><br>Andrew Schofield<br><br><br><br><br> </body>
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