Neil: There is a single thrust bearing on the input shaft to compensate for the forward pressures of thé planetary set.It slides over the small pilot shaft that is 1 inch diameter
The pilotshaft runs in a small needle bearing pressed into the PSRU housing.
On the photo you will see that the trustbearing is bed into the sungear so that no movement sideways are possible and that everything is "held true"
It is embedded the thickness of the trust bearing washer (sungear side)
The Oilseal sits in the "bellhousing" and runs on a 1.760 inch diameter. There is enough place to run a back to back oilseal there.Just have to machine deeper into the belhousing oilseal bed.
Feel free if you need some more photos of the input shaft ect.
Sent from my iPhone
Le Roux Breytenbach
Le Roux,
Again some interesting comparisons, The spline that Tracy used on the input shaft is 30 teeth and a dia of just under an inch (23.8mm), so the Ross spline is bigger dia. by a substantial amount. Having said that, the Tracy spline is around 1.75 inches long which appears to be much longer than the clutch center that Ross used. So at the end of the day, both the same strength wise. Then looking at your photo of the Ross input shaft, just where does the Ross input shaft run the oil seal for the redrive? It would appear to be at the bottom of the leading helicut gear?? Seems Ross had the ability to cut the gears on the input shaft, whereas tracy used the stock gear from the Ford box. This is a cheaper option. Cutting and tempering gears is not cheap.
Neil.
Neil: Yes the input shaft has a spline that fits into the center of the clutch plate.
The input shaft have 26 spines with diameter at splines of 1.560 inch
Phots of the input shaft:
The propellor shaft dimensions will i send tomorrow, as i don`t have a press that are strong enough, for the locking pins on the shaft
Le Roux,
Just wondering how far you have gotten into the redrive. Seems the drive is used by cutting down a clutch plate? I assume therefore that the input shaft has a spline to fit the clutch plate spline and not the fine multi spline that Tracy uses?
Do you have any measurements as to the prop shaft -- photos?
Neil.
-----Original Message-----
From: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Friday, November 27, 2020 7:16 AM
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: [FlyRotary] Ross Redrive se ex se
Terry : Thanks Terry for the Ross Redrive the parcel arrived on Monday 23 Nov .
Neil if you want some dimensions on the hollow propellor shaft your welcome.
Regards
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