I haven't seen any power tools where the geared end of an armature was
replaceable (where the motor axis was parallel to the output shaft).

Angle grinders and similar right-angle oriented motors often do have
replaceable armature gears.. circular saws and similar generally don't, IME.
If that wasn't what you were implying, I misinterpreted your description.

One source for old power tool parts was Sears.. the tool didn't need to be a
Sears/Craftsman brand tool, but since Sears wasn't a manufacturer, they
relied on major tool manufacturers to produce the Sears tools with the Sears
name on them.

So, if B&D (for example) made a model like yours for Sears, Sears may still
have the parts.. if you can do the required research to locate the correct
Sears/Craftsman model number.

The other gears in the drivetrain were probably very limited in production
and finding replacements would likely be a matter of luck and ingenuity as
far as finding something that can be adapted (something that fits but the
center hole size too big or small, adapting as required).
I've seen a variety of gears in power tools made from from plastic, zinc
diecast, phenolic, steel with polished center holes and hardened teeth, etc.
Fabricating combination gears consisting of 2 differently sized gears
siamesed together present a more complex problem.

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WB
..........


"dpb" wrote in message ...
I've a couple old B&D belt sanders that are my favorites for balance,
weight, size, etc., etc., etc., ... At the moment there seem to be none
in production w/ 3x24 that have similar physical dimensions--I have a
Makita but it turns out to have 3" rollers on the 4" body so it's
excessively bulky and similar issues plague every other current model I've
been able to find.

Preamble out of the way, what's wrong w/ these is that the drive gear on
the end of the motor rotor and it's matching gear wear to the point they
slip and then it's done for. There are no spare parts available (these
went of of production in the late '70s/early '80s).

So question is, does anybody know of anywhere one might affordably be able
to have some replacement gears made?

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