Quote:
Originally Posted by martin417
We bought brand new 6" Andymark plaction wheels this year. We noticed after the scrimmage that one of the wheels was cracked. Today, one of the wheels on our practice bot completely came apart. It appears to have originated at the hub area. The entire hub disintegrated intiny pieces.
Has anyone else had problems with Plaction wheels? A possibility we thought of is the loctite. I know some plastics don't like loctite. It is likely that when the sprockets were assembled, some loctite got on the plastic. Is this a likely culprit?
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http://www.useloctite.com/library/faqs3bd1.html
Q: Do you recommend using anaerobics on plastics?
A: Anaerobics are generally not used with most plastics. Anaerobics will stress crack some plastics including many thermoplastics like ABS and polycarbonate. If the product is used for metal-to-metal but in close proximity to plastic, there is the possibility of excess liquid product or vapor affecting the plastic. In the case of compatible plastics like acetals, the anaerobics are simply not the best family of products for effectively locking and/or sealing. Often cyanoacrylates are substituted if they meet the other application parameters.
Plaction wheels are made out of polycarbonate, you are most likely correct in thinking that may be the cause.