I was under the impression the snubber thickness set the end play. The one supplied by Tracy is not flat and I had assumed it was not an off the shelf item.
https://wwwmcmaster.com/7421K28/
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Temperature Range
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10° to 220° F
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Bobby
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Wednesday, April 28, 2021 1:16 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: PSRU thrust bearing/washer
Too little or too much end play?
Tracy specifies 0.005 to 0.035"
Note that if you check it without RTV, it may increase when you assemble it.
Finn
On 4/28/2021 1:05 PM, Matt Boiteau mattboiteau@gmail.com wrote:
I have one of Neil's 3.17 psru with Tracey's cushion drive. *I also sent Neil an email but it's late in the night in Australia.
After my fly off hours, tearing down the plane to inspect everything. The Ultra-Low-Friction Oil-Embedded Thrust Bearing is broken into pieces.
https://wwwmcmaster.com/7421K28/
The nylon or teflon washer supplied just melted. I thought I nailed it with a fix using the oil-embedded, but I guess not.
I think in Tracey's documentation, he called it a snubber ? Any ideas what I can use, or why this happens?
--
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