hi Paul,    can you find out what alloy the eshaft is make of?   can it
be chrome plated or nitride? i have been unable to find a shop with
induction hardening equipment in the Denver area yet.  does the
induction hardening strengthen the shaft any appreciable amount or is it
just to slow the journal wear rate.  i checked the shaft with file and
center punch, only the journals are hard, grind off about .010 and it is
much softer.  the rest of the shaft seems to be whatever heat treated
alloy used.  thanks   wyo. walt.

Induction hardening does increase the strength but you are putting
half the average load through the aft journal and flywheel joint
where the highest stresses are.

I have no idea on the alloy. It could also be nitride but I doubt it.

Richard, how did you re harden the e-shaft?

Paul Lamar ...No rotor no motor.

I do not have a shaft with hardened journals yet. I am still using the one
with the roller bearing sleeve.
My plans are induction hardening for the final version. One place I know of
doing it is in Raleigh, NC. When I get to that point, that is the place I
am going to start with. I still have to find their address.

Richard Sohn
N2071U

Here it is Richard. Paul

East Carolina Metal Treating, Inc. - Raleigh, NC - E-mail this
company Service Company
Company Profile: Induction hardening services, overnight turnaround
most jobs. Atmosphere integral quench, vacuum, induction scanning,
austempering, gas nitriding, belt brazing, hydrogen annealing,
cryogenics, black...
    
East Carolina Metal Treating, Inc.
1010 S. Saunders St.
Raleigh, NC 27603
Phone: 919-834-2100
Fax: 919-833-1764
http://www.ecmtinc.com
jeff@ecmtinc.com

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