I am looking for a female spline that will fit the output shaft on the TC
gear box. It
 is 25 mm OD with 18 splines.

 It is about the same OD as Tracy's spline plate but far fewer splines.

 Anybody know their splines ? :)

 Paul Lamar

 Paul,  I would call Hayes  Mfg Co at  231-879-3372  and ask for a code
99 (special
 spline or bore)  jaw type steel  shaft coupling sized for about 40 HP. A
Hytrel insert
 and the metal ring external retainer. You will also need the bore and key
measurements
 for the E-shaft nose. george grimes

 The screw in the end of the e-shaft is high torque. I'll weld a socket on
the end of
 the coupling shaft and connect it that way.

 The spline was a press fit so I am sure it is a custom spline.

 I have decided to use the gear as part of the coupling.

 I want to get that gear normalized tomorrow and turn it down. If I get it
up 1650 F or
 so and let it cool slowly will that do it? I have a small electric oven.
Less than a
 cubic foot. What is the best way to let it cool. Can I just turn off the
oven? Will
 that cool slowly enough?

 Max torque will be about 50 foot pounds at 6000 RPM What kind of mcmaster
carr coupling
 do you recommend?


 A "Multi-Flex Shaft Couplings" looks good. 6,000 RPM but only 450 inch
pounds.


 Paul Lamar

 On second thought I'll  never get the TC gear box and 3 rotor engine
aligned well
 enough to use a simple coupling. Plus they will move around slightly
while running.

 I am going with a double u joint shaft like this.


 Paul Lamar


 Paul air cooling is too fast. You might put it in a box of granulated
garden lime for a
 day after you get it hot. george

 Now you tell me. I just paid $50 to the heat treater :)

 I have decide to use AN24 SS braided hose as a coupling. Held on with
shaft collars.

 Much cheaper than all the other options I have looked at.


 Paul Lamar


 Paul,

 Will the hose be able to transmit the torque?  If not, what would happen
if you filled
 the hose with the 500 degree RTV material you are talking about for the
torsional
 damper?  Maybe some fiberglass on the 45 degree bias on the inside will
help transmit
 the torque without twisting the hose.  Just an idea I had...

 Norm

I hope so. Not much torque. Only about 40 foot pounds.

Good idea.

Paul Lamar



Paul there are 2 piece clamps made for steam hose that crush the hose onto
the  fitting  with 2 or 4 bolts. The inside of the clamp looks like the
inside of a no-skive hydraulic hose end. If you are concerned about wrap up
from torque you can use a 4 wire hose in place of the two wire hose.
                        george grimes