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Unread 12-04-2013, 02:11
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Botwoon Botwoon is offline
A.K.A. Matthew Ruane
FRC #0207 (Metalcrafters)
Team Role: College Student
 
Join Date: Feb 2012
Rookie Year: 2009
Location: Southern California
Posts: 152
Botwoon will become famous soon enough
Re: pic: 2175 Wheel v2

Quote:
Originally Posted by Boe View Post
Ill try and find the wheel at the shop tonight and upload it later. we believe the reason for the failure was because of the less then ideal shaft size causing the forces not to be distributed over a large enough area in the wheel. What size shaft do you guys use it looks like 3/4.

Also the 3/8 shaft is steel (not sure the exact alloy) and they have held up through 2 regionals plus practice in the shop, i dont expect to see any failures from them, but we have two spare drive sides that we can scavenge off of if they start to fail.
We used 1/2" alum this year. I believe we did 7/8" in 2012 and iirc we were rolling 1" hex in 2011. I'm too lazy to embed, but here's a link to the entire 2013 assembly (4" wheel). The back end of the axle is unfinished in this photo.
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