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Walt Strong

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Posts: 889
Reply with quote  #16 
"Keep in mind that "planetary" means one specific type of epicyclic gearing where the ring or annulus is stationary."

Hence, the Planet gears rotate about the Sun gear!

Walt

 
John from PA

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Posts: 963
Reply with quote  #17 
Quote:
Originally Posted by Walt Strong
"Keep in mind that "planetary" means one specific type of epicyclic gearing where the ring or annulus is stationary."

Hence, the Planet gears rotate about the Sun gear!

Walt

 


Not to be picky, but I'd prefer to use the expression the planet gears orbit about the sun gear.
JuddJones

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Posts: 382
Reply with quote  #18 
Quote:
Originally Posted by Danny Harvey
Many manufacturers of planetary reducers say that tracking the temperature on the exterior of the ring gears is the best way to track wear in them.

I would think that would be a very good indicator on the smaller planetgear gearboxes we have. The small one and 2 stagers (that a word?) have the ring gear built into the ID of the case. Would the larger gearboxes see much temp increase with the multiple stages all having separate carriers?
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