Quote:
Originally Posted by nathan_hui
I'm curious as to how this is supposed to mount onto a CIM; CIMs (or at least the ones I've seen) don't have star shaped splines. Also, this seems fairly thin for a planetary gearbox - are you sure this is the entire gearbox?
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Little known fact: in the early days of CIMs, they didn't have the 8mm keyed shaft that we know today. They shipped with a gear shape cut into the CIM shaft, apparently to integrate into a gearbox. This is quite probably the star shape spline needed to fit into this carrier.
Of course, putting the CIM in that hole wouldn't be very useful, because this would cause a decrease in torque, not an increase, given that hole is in the planet carrier, not in the sun gear. On the other hand, it might be the case that the star shaped CIM shaft was the sun gear in this gearbox.
I have no idea what planetary this might be. I might hazard a guess that this was part of the origional application for CIMs. A BaneBots P-80 might be what you're looking for, although they only have 4:1 and 3:1 single stage reductions.