MK ball bearing connectors

[chadnortheast at shaw.ca]

One method I use to get around the lack of adjustment (especially on elevators) is to use the Central pushrod system and use the 4-40 fittings on one end and the 2.5mm fittings on the other.  With the differing thread pitches you get an infinite amount of adjustment.  Its possible to just spin the pushrod to get really fine adjustments.

Chad

----- Original Message -----
From: David Harmon <K6XYZ at comcast.net>
Date: Wednesday, January 21, 2004 12:40 pm
Subject: RE: MK ball bearing connectors

> Yep...that's true..I hose the bearings out with WD-40 occasionally 
> justin case they want to rust or corrode although there has never 
> been any
> observed.
> The aluminum horns corrode though...they need to be anodized.
> 
> Regards
> 
> Dave Harmon
> NSRCA 586
> K6XYZ[at]comcast[dot]net
> Torrance, Ca. 
> -----Original Message-----
> From: discussion-request at nsrca.org [discussion-request at nsrca.org]
> On Behalf Of Troy Newman
> Sent: Wednesday, January 21, 2004 11:07 AM
> To: discussion at nsrca.org
> Subject: Re: MK ball bearing connectors
> 
> Get a 2mm socket head screw and some 2mm hex nuts. Then you have a 1/2
> turn resolution. I recommend the nuts regardless. I've had several
> models up over 1500 flights using these clevis devices and never 
> had one
> go sloppy or fail. The cost a bit more...but event he Rocket city 
> stuffwas going sloppy on me and need replacing. By the time I 
> bought 2 sets
> of RC stuff I paid for the MK stuff.....This is the best 
> endorsement I
> can make on this hardware. I have yet to see something wear out.
> 
> 
> TN
> ----- Original Message ----- 
> From: Woodward James R Civ 412 TW/DRP
> <')" >James.Woodward2 at edwards.af.mil>  
> To: discussion at nsrca.org 
> Sent: Wednesday, January 21, 2004 10:55 AM
> Subject: MK ball bearing connectors
> 
> Hi All,
> I'm using some MK ball bearing connectors on my plane now and have 
> a few
> questions for those that use them.  When installed on the 
> elevator, I
> only have the resolution of 1 full turn because the direction the 
> smallPhilips head screw must pass through.  Are there any tricks 
> to working
> around this?  The aileron install seems fine as you can access the 
> screwhead from any direction. 
> 
> For those that use these devises, are there any improvements,
> maintenance, or things to be aware of?  Has the screw ever backed out?
> Thanks,
> Jim W.
> 
> 
> 

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