Does anybody have a parts list with numbers for the gearbox?

Kevin Alderman



Tracy's gear box? I can give you part numbers on the planetaries.
His prop shaft and flange was based on a modified  GM truck rear axle and bearing.

The rest of the parts are custom made.

The rear planet is  Slauson Transmission Parts E4D 40. Front planet is E4D 30 Sun Gear E4D 28
Rear ring gear E4D 74. Front Ring gear E4D 61.

Paul Lamar

Paul, if memory serves, the only thing that holds the axle bearing to the axle was a light press fit on the axle, and then a press fit lock ring. Is that right, NAW, could not be just that, right?

Steve Carlisle

It is not a light press fit. It was done with a 20 ton press.
That takes all of the prop thrust. That also holds the wheel in and the axle
on in the truck.


Paul Lamar

I pressed mine on, I just didn't get a part number for it.  I would like to know what plain bearing and other items he used-
Spare parts are hard to get without part numbers and suppliers.

Kevin Alderman

I have no idea on the plain bearing part number.

I am not going to use one.

It seized on Dave Leonard's box at Reno.

Thanks to Larry Childs he had another Tracy box back in Northern Cal.
that somebody recovered by flying over there. We had Dave flying again
in less than 8 hours.

Paul Lamar

The Rotary Engine free News Letter. Powered by Linux. If you want off
the list PLEASE let me know and I will remove  you.  ACRE NL web
site. http://www.rotaryeng.net You Tube http://tinyurl.com/beqqxas
Copyright 1998-2017 All world wide rights reserved.