On Sat, 15 Jan 2005 12:49:01 -0600, F. George McDuffee
wrote:

Several sources have suggested using a 37/47 gear combination
which is susposed to produce "2/100 of 1% accuracy"
[see http://www.lathe.com/metric_threading]

We carry those gears. Our online store is temporarily down for
maintenance, but you can call our office [(815)943-9500] for details.

We have two different sets available, both 16DP, 14-1/2 NPA.

One set is 7/16" wide with a 5/8" bore and 5/32" keyway. These are
designed for Logan 9", 10", 11" and some 12" Lathes.

The other set is 5/8" wide with a 15/16" bore and 5/32" keyway. These
are designed for Logan 14" and some 12" Lathes.

We also have available 100T and 127T gears with the same specs for
mathematically correct transposition. These gears are, of course,
substantially larger and more expensive.

The 37T gears are $60.50 each, the 47T gears are $74.50 each.

The 100T gears are $162.25 each, and the 127T gears are $213.25 each.


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