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Old Feb 29, 2012, 10:43 PM
Registered User
United States, CA, San Jose
Joined Dec 2011
8 Posts
Help!
Stripped screw on 480 Bl outrunner motor

I stripped one of the 2 mm hex screws on the outrunner. It's the screw attached to the donut looking piece behind the shaft. Anyone have any advice?
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Old Mar 01, 2012, 06:30 AM
Jack
USA, ME, Ellsworth
Joined May 2008
17,015 Posts
Is that the aluminum cylindrical piece that slides up the shaft and against the Ci-clip? If so, that reinforces the shaft and keeps it from being pulled out of the inner races in the event of the C-clip failing or being lost.

It is only needed when you are using the motor in the radial mounting method (rotating part facing in the direction of flight). If you have a firewall mounting (rotating part to the rear) you can leave that "donut" off.

If the C-clip is in place and up against the inner bearing race (as it should be) you can fly without it and take the chance that the C-clip will hold as failures are not very common.

To "save it" you may be able to tape the screw hole to a 3mm thread and use the larger grub screw.

Jack
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