Quote:
Originally Posted by Jonathan Norris
- with that high of a planetary reduction, the loads on last couple stages are pretty significant, to the point where I don't think those mild steel planetary gears will last very long.
- I would also be very concerned with stage plates in the last couple stages, the pins that the planetary gears rotate on are only press fit into the mild steel and have been known to come loose and destroy the gearboxes.
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Point of order. The gears are definitely mild steel, but the ring gear is aluminum and likely to fail first.
Also, the carrier plates are definitely NOT mild steel. The guys that can run our pmi gun are out of office this week, but I had a scrap carrier plate to play with. 20 minutes, a butane soldering iron, and a cup of water took the carrier plate from 22 HRC to 40+ HRC. Definitely not a mild steel.