"Tim Angus" wrote in message
news:20050515130041.558e8894.MyForeName@TheLast4Ch arsOfMySurname.net...

The actual number of splines is not important, nor is the precise
profile of the splines. The purpose of this part is as an internal
ratchet, used for a gear shifter on a bicycle. The spline profiles must
be symmetrical as there are two pawls, one for each shifting direction
(the pawls are disengaged at rest).

Why reinvent the wheel? I would disassemble a Sears Craftsman ratchet
(Avail in 3 sizes.) and see if you can use the guts for your purposes.

This would have the advantage of having replacement parts always available.

--

Roger Shoaf

About the time I had mastered getting the toothpaste back in the tube, then
they come up with this striped stuff.