From: "Bill Schertz" <flyrotary@lancaironline.net>
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To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] bearing in mazda g/box
Date: Sat, 5 Aug 2017 08:51:31 -0600
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I believe that Tracy's gearbox uses a stack of needle bearings to lower the 
rpm of each bearing to a better value
Bill Schertz

-----Original Message----- 
From: Neil Unger
Sent: Friday, August 04, 2017 11:54 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] bearing in mazda g/box

Gents,  I have suddenly realised that the main bearing on the Mazda
g/box input shaft would have to take 8/9000 RPM.  In my search most
bearings give out at 6,000 RPM.  Does anyone know just what bearing they
use?  Perhaps the number??   I realise i am the optimist.  Thanks Neil.


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