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Re: pic: Team 3647: Gearbox
Quote:
Originally Posted by rsisk
We fell in love with 3/8" hex last year, well, I did anyways. What is the purpose of lathing the end to 3/8" round?
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Sisk- not to speak for the OP...
...but in the past, we have turned 3/8 hex down to round to utilize regular round bearings. Obviously we prefer to use hex for all power transmission where we can, but it has happened in the past.
One specific example was in our lift for 2010. The lift gearbox utilized a CIM through a series of reductions to spin a pulley to wrap a line which pulled us up. The radial load was most certainly above 40 lbs, which was not a known issue at the time for the AM hex bearings. We destroyed a set of them at one of our regionals, and before the next competition we changed the hex bearings to regular round bearings, subsequently requiring us to turn down the end of the shaft and mill a keyway.
-Brando
__________________
MORT (Team 11) '01-'05 :
-2005 New Jersey Regional Chairman's Award Winners
-2013 MORT Hall of Fame Inductee
NUTRONs (Team 125) '05-???
2007 Boston Regional Winners
2008 & 2009 Boston Regional Driving Tomorrow's Technology Award
2010 Boston Regional Creativity Award
2011 Bayou Regional Finalists, Innovation in Control Award, Boston Regional Finalists, Industrial Design Award
2012 New York City Regional Winners, Boston Regional Finalists, IRI Mentor of the Year
2013 Orlando Regional Finalists, Industrial Design Award, Boston Regional Winners, Pine Tree Regional Finalists
2014 Rhode Island District Winners, Excellence in Engineering Award, Northeastern University District Winners, Industrial Design Award, Pine Tree District Chairman's Award, Pine Tree District Winners
2015 South Florida Regional Chairman's Award, NU District Winners, NEDCMP Industrial Design Award, Hopper Division Finalists, Hopper/Newton Gracious Professionalism Award
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