Mailing List flyrotary@lancaironline.net Message #64451
From: Bobby J. Hughes bhughes@qnsi.net <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] 1mm thrust washer
Date: Sun, 11 Nov 2018 11:29:03 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Neil,

That should work. I believe Tracy has suggested the same solution. It would allow for replacing the 1mm washer if needed. I’m thinking aluminum instead of steel to minimize any wear on the washer outer edge if it rotated. I would like to start using my gearbox chip detector again. The 1mm washer shaft contact caused enough fuzz to activate it every few hours so I removed it. Would this be an item Randy Kempf would consider supplying? We need four in Austin TX and I’m sure others would retrofit if the part was available.  The cup OD would need to increased but I think we have plenty of room to accommodate modification.

Thanks,
Bobby

Sent from my iPad

> On Nov 10, 2018, at 4:01 PM, Neil Unger 12348ung@gmail.com <flyrotary@lancaironline.net> wrote:
>
> Bobby,
>
>                     Tried my bearing blokes with no joy, over that size they are all 1.5mm.  There is another way however if there is room.  I suggest a small alloy (or steel) "cup" with mounting flanges like the washer you want, except in the middle the 1mm washer fits flat against the mounting plate as usual, and the cup then tapers upwards (after the 1mm thick retaining hole at the bottom ) and out slightly (for say another 3mm?) to prevent the 1mm thrust washer to "jump out of bed" and moving sideways. If it does move forward the taper will force it back into place when the load comes on again.  My $0.02 worth,
>
> Neil.
>
>
> --
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