stunthanger.com

Electric Stunt => Gettin all AMP'ed up! => Topic started by: Avaiojet on December 31, 2013, 04:39:36 PM

Title: Rear bearing support mounts? Suggested by Norman Whittle.
Post by: Avaiojet on December 31, 2013, 04:39:36 PM

It's great to dig for information. My shovel is getting bigger.  ;D

It's also great when you compare information from many sources. The results can be interesting to say the least!

I didn't dig this photo up, a fellow SH modeler sent me the link. Yes, true!  H^^

Obviously the photo shows a rear bearing support. First I heard of this?

Evidently someone belives it's necessary? Looks like Norman Whittle wrote the piece.

So, anyone using one?

Here's the link for anyone that may have interest, it's a good read!

http://www.castlecreations.com/products/control_line_stunt_setup.html

Charles

Title: Re: Rear bearing support mounts? Suggested by Norman Whittle.
Post by: John Cralley on December 31, 2013, 06:38:11 PM

On large front mount motors some say you need it some say you don't!  y1
 ;D S?P

Title: Re: Rear bearing support mounts? Suggested by Norman Whittle.
Post by: Rick_Huff on December 31, 2013, 06:59:50 PM

Charles,
I ended up using one on a profile RD1.  The front mount I made wasn't stiff enough and some vibrations ensued.  The very simple rear bearing that I added completely solved the problem. 
Rick

Title: Re: Rear bearing support mounts? Suggested by Norman Whittle.
Post by: Avaiojet on December 31, 2013, 07:20:27 PM

Quote from: Rick Huff on December 31, 2013, 06:59:50 PM

Charles,
I ended up using one on a profile RD1.  The front mount I made wasn't stiff enough and some vibrations ensued.  The very simple rear bearing that I added completely solved the problem. 
Rick

Rick,

Thanks for the reply!

Where did you get the bearing and shaft plus the mount holder?  Everything has to be secure and stay in place?

Charles

Title: Re: Rear bearing support mounts? Suggested by Norman Whittle.
Post by: Rick_Huff on January 02, 2014, 01:03:28 PM

Charles,
I got the bearing from McMaster Carr.  The motor is an E-Flite 15 and I bought an E-Flight 25 shaft to use in the E-Flight 15.  Its about 1/4" longer and just the right length for the bearing.  I made the bearing mount out of a small piece of basswood.  It's real simple, but it works.  I have a pic somewhere that I'll post when I find it.
Rick

Title: Re: Rear bearing support mounts? Suggested by Norman Whittle.
Post by: Rick_Huff on January 02, 2014, 01:10:36 PM

Here's a pic of the rear bearing.  The motor was slid forward for the photo.
Rick

Title: Re: Rear bearing support mounts? Suggested by Norman Whittle.
Post by: Avaiojet on January 02, 2014, 02:24:15 PM

Rick,

What a guy! Thanks for the photos!

Nice work on your metal mount? Clever.

5mm on the bearing shaft thickness?

Obviously, the rear bearing has to be centered on the money.

Bearing/mount glued in place after the motor was in place?

Thanks again for that info and photos!!

Charles

Title: Re: Rear bearing support mounts? Suggested by Norman Whittle.
Post by: Rick_Huff on January 02, 2014, 02:41:11 PM

I can't take credit for the front mount design.  I saw it on this forum a while back, can't remember who's idea it was.  Yes it's a 5mm shaft, and you're correct about gluing the rear mount in place with the motor mounted.
Rick