Quote:
Originally Posted by AmiSMB
Mine has not failed but I have noticed little pieces at the outer edge of some of the teeth are missing. Looks to me like the rear ring gear is cast and maybe then have minimal finishing. All the 1/8th ring gears I have seen look like they are completely machined from solid metal.
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Exactly, I'm also thinking little pockets of air or impurities in the molding process cause these failures. I received once a new ring gear with a corner missing, so it's completely possible that an imperfection is at the inside of a tooth.
Off course all the precautions we mentioned here will minimise stress on this gear and will minimise failures. But I also would prefer machined gears, that I can use untill they are worn instead of broken, even at a higher price (already broke 8 of them in a year and a half)