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Unread 16-07-2013, 15:14
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Re: IRI Teams with a spare P60 gearbox?

Quote:
Originally Posted by AdamHeard View Post
Good Catch, with only single stage 4:1's you'd be missing the sun/carrier for a 4:1.
We may actually still have a good sun/carrier. The failure we see is a completely galled first stage reduction. The motor pinion and the gears it meshes with get destroyed. More than once this season I was able to combine the innards of multiple 16:1 gearboxes to make a new one. Of course by this point the motor was toast and we would need to attach a new pinion to a new motor anyway. The condition of the ring gear where it meshes with the first stage varies quite a bit though depending on how bad the galling got. The problem is that we can hardly notice it until the gearbox is completely seized.

One of our mentors looked at one of the failures and his immediate reaction was that there was no way the gears were cold-rolled, they must have been powder sintered because of the way there was metal powder everywhere in the gearbox. The cross section of the exposed inner surfaces of the gears also appears very non-uniform and grainy.

I've been doing research on other options for planetary gearboxes and we will likely be working with the VexPro Versa Planetaries in the future.
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