tom wrote:

can't you just use 2 separate gears together on the same shaft w/ the angle
in opposite directions to simplify manufacture of this type of gearset?

Tom

Bill Freeman wrote:

I syspect that this would work just fine.  The issue would be
the accuracy of alignment of the two gearsets re each other and
the common shaft drive mechanism (spines or keys).  The issue
is that if you have one pair of gears it matters not where you
clock the splines to the shafts, they just line up where they line
up.  With a set of gears the internal splines of both sets (and
both gears of the set must be VERY accurately aligned to
prevent binding of the pair, or said another way - to ensure
that each half is carrying it's fair share of the load.

All the herringbone gears that I have seen have been made
as a single piece.

Bill

 
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