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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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