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Ernest,
Please explain needle roller bearings under the planets.
I was in the middle of explaining about NRB but realised you may have ment
something else, other than what I'd thought.
George ( down under)
Ed Anderson wrote:
>Ernest, I think you might be referring to the time Tracy received some
drive
>shafts which had not been manufactured correctly. Wasn't an
incompatibility
>problem it was failure in manufacturing and quality control.
>
>Ed A
>
>
>
Yeah, that was it. He ended up having to ship a bunch of units back,
right? I just vaguely remember it, with the basic lessons being to
carefully check my gearset with a strong backlight before trusting life
and limb and that all gearset are NOT created equal.
I remember the lesson more clearly than what taught it, which led to my
reluctance to swap gears. Now that I realize that I can inspect the
switch in the store...No problem. I'll swap out for the 6-planet set
with the steel carrier next week. My investigation has reveal what
Tracy was saying earlier, though. I don't yet know if it is the front
or rear gear set, buy there are a lot of variations that actually have
different reduction rates. But again, I won't leave the store without
something that works properly, even if it is what I have.
One question I still have, though. I've read that the major wear factor
on a gear set is the number of torque reversals. Wouldn't a 6-planet
set induce twice the number of reversals as the 3-planet? And how much
difference will it make if you're using the same sun and ring gears?
Well, two questions. Some of the racing sites are advertising planet
sets with needle bearings under the planets. Claims to reduce rolling
resistance and increase torque. Smells of snake oil to me, but since
I'm switching out anyway, is there any merit to this?
Ernest (you are in a maze of reduction gears...all slightly different)
>> Homepage: http://www.flyrotary.com/
>> Archive: http://lancaironline.net/lists/flyrotary/List.html
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