Thread: pic: New serve mk.1-2517
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Unread 01-07-2014, 10:51
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Re: pic: New serve mk.1-2517
Quote:
Originally Posted by nathannfm View Post
Aren't all of the extremely common dead axle (sprocket/pulley bolted directly to the wheel) drives in FRC putting 6 bolts in shear on each wheel? (we found out what happens when you accidently forget 3 of the bolts...ignore the EI metal )
While this is common and may work, it is not optimal. Screws aren't great in shear due to the stress risers of the threads and the effectively smaller load carrying diameter of the bolt. A better solution is to use 3 bolts for fastening and three shear pins to take the load. Shear pins are better simply because they aren't threaded and thus have a larger effective diameter.
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