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  #1  
Old 02-01-2022, 09:17 AM
Sky Designs's Avatar
Sky Designs Sky Designs is offline
 
Join Date: Dec 2018
Location: Anacortes, Washington
Posts: 43
Default Ball Bearing Aileron Bellcrank Brackets

One of the things we love about our RVís is their exquisite control feel. Because most maneuvering happens in roll, anything that can be done to reduce friction and free-play in the aileron control system is particularly desirable.

New Product Announcement: Sky Designs has developed a set of aileron bellcrank brackets that allow for the bellcranks on RV-7, -8, -10, & -14 to rotate on ball bearings rather than bronze bushings...just like the RV-4 & 6 have always been.

The anodized brackets feature sealed ball-bearing units that are maintenance free, have essentially zero free-play, and reduce friction in the aileron control system. Large diameter flanges on the aluminum bellcrank bushings serve to keep the bellcranks fully captured between the brackets in the event of a failed bearing.

Installation even on an already finished and flying aircraft is straightforward and can be accomplished in an afternoon.

The $189 kit comes with everything you see in the photo plus a set of installation instructions. We have them in-stock and ready to ship - just in time for Valentine's Day! Go to: https://www.skydesigns.aero/products
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Sky Designs Engineering
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  #2  
Old 02-01-2022, 10:08 PM
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skylor skylor is offline
 
Join Date: Aug 2009
Location: Southern California
Posts: 1,046
Default Excellent!

Quote:
Originally Posted by Sky Designs View Post
One of the things we love about our RVís is their exquisite control feel. Because most maneuvering happens in roll, anything that can be done to reduce friction and free-play in the aileron control system is particularly desirable.

New Product Announcement: Sky Designs has developed a set of aileron bellcrank brackets that allow for the bellcranks on RV-7, -8, -10, & -14 to rotate on ball bearings rather than bronze bushings...just like the RV-4 & 6 have always been.

The anodized brackets feature sealed ball-bearing units that are maintenance free, have essentially zero free-play, and reduce friction in the aileron control system. Large diameter flanges on the aluminum bellcrank bushings serve to keep the bellcranks fully captured between the brackets in the event of a failed bearing.

Installation even on an already finished and flying aircraft is straightforward and can be accomplished in an afternoon.

The $189 kit comes with everything you see in the photo plus a set of installation instructions. We have them in-stock and ready to ship - just in time for Valentine's Day! Go to: https://www.skydesigns.aero/products
Oh, now thatís cool!

Skylor
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  #3  
Old 02-02-2022, 04:03 AM
Phil Sprang Phil Sprang is offline
 
Join Date: Apr 2013
Location: Newnan, GA
Posts: 34
Default

Ken,
You had me at ďnew product announcementĒ!
Check your inbox.
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Phil

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Current C-182
RV-14ER build in progress
2021 Donation Made
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  #4  
Old 02-02-2022, 04:28 AM
TASEsq TASEsq is online now
 
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Location: Melbourne, Australia
Posts: 436
Default

They seem a little thicker than the Vanís ones (on the -14 anyway). Does the extra thickness still allow for the Garmin servo bracket to work?
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  #5  
Old 02-02-2022, 09:54 AM
terrye terrye is offline
 
Join Date: Feb 2010
Location: Vancouver, BC, Canada
Posts: 992
Default

Quote:
Originally Posted by Sky Designs View Post

New Product Announcement: Sky Designs has developed a set of aileron bellcrank brackets that allow for the bellcranks on RV-7, -8, -10, & -14 to rotate on ball bearings rather than bronze bushings...just like the RV-4 & 6 have always been.
...and what about the -9/9A? Doesn't this model use the same brackets as the RV-7?
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  #6  
Old 02-02-2022, 11:54 AM
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douglassmt douglassmt is offline
 
Join Date: Nov 2008
Location: Missoula, MT
Posts: 739
Default Something else

That's very cool. I'll give it a look. However, I've determined that most of the play in my RV-10 control system is in the part that the stick mounts to, due to the imprecise bearing built in. Essentially it's kind of a rolled piece of metal as I recall, maybe with a alum tube inserted in it. Either way, all the play I've got is limited to that part. One owner I know replaced the alum tube in it with a plastic tube that was a hair long so when it was compressed it filled up the space available and took out a lot of the play. It seems like a simple matter to build a new part that would have a better bearing. If you built it I would buy 2!

My $0.02

Quote:
Originally Posted by Sky Designs View Post
One of the things we love about our RVís is their exquisite control feel. Because most maneuvering happens in roll, anything that can be done to reduce friction and free-play in the aileron control system is particularly desirable.

New Product Announcement: Sky Designs has developed a set of aileron bellcrank brackets that allow for the bellcranks on RV-7, -8, -10, & -14 to rotate on ball bearings rather than bronze bushings...just like the RV-4 & 6 have always been.

The anodized brackets feature sealed ball-bearing units that are maintenance free, have essentially zero free-play, and reduce friction in the aileron control system. Large diameter flanges on the aluminum bellcrank bushings serve to keep the bellcranks fully captured between the brackets in the event of a failed bearing.

Installation even on an already finished and flying aircraft is straightforward and can be accomplished in an afternoon.

The $189 kit comes with everything you see in the photo plus a set of installation instructions. We have them in-stock and ready to ship - just in time for Valentine's Day! Go to: https://www.skydesigns.aero/products
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Bryan Douglass
=VAF= 2022 dues paid
RV-10 N242BD
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  #7  
Old 02-02-2022, 12:34 PM
scsmith scsmith is offline
 
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Location: Ashland, OR
Posts: 3,088
Default

Brilliant.
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Steve Smith
Aeronautical Engineer
RV-8 N825RV
IO-360 A1A
WW 200RV
"The Magic Carpet" Flying since Sept. 2009
Hobbs 700
also
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  #8  
Old 02-02-2022, 12:36 PM
Stewbronco Stewbronco is offline
 
Join Date: Sep 2019
Location: Langley BC
Posts: 272
Default Highly recommend Ken

I just dealt with Ken @ Skydesigns and can attest to him being a first rate guy to deal with ! Highly recommended
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  #9  
Old 02-02-2022, 12:42 PM
A2022 A2022 is offline
 
Join Date: Apr 2011
Posts: 2,425
Default torque

what happens if you over torque the bolt? is the bolt covered with a sleeve to act as a stop?

edit: forget this question. the sleeve is built into the assembly so not a problem.

Last edited by A2022 : 02-02-2022 at 01:01 PM.
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  #10  
Old 02-02-2022, 01:57 PM
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Sky Designs Sky Designs is offline
 
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Location: Anacortes, Washington
Posts: 43
Default Servo Bracket

Quote:
Originally Posted by TASEsq View Post
They seem a little thicker than the Vanís ones (on the -14 anyway). Does the extra thickness still allow for the Garmin servo bracket to work?
Yes, they are thicker than the standard bellcrank brackets.

Others have also asked about compatibility with the Garmin servo bracket...attached is an illustration (pulled from the installation instructions for this kit) showing how the AP servo mounts to the "long" bracket. Because the extra thickness is away from the servo mounting surface, the only thing that needs to be accounted for is the grip length of the AN3 servo attach bolts. The little radius washers you see called-out in the illustration are provided in the kit.
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