Interchange Airtonics/JR servo arms

[Atwood, Mark]

I've found the Nylon arms to be pretty interchangeable between JR and
Atx...  But with the aluminum arms Bob is correct...the "fit" is
slightly off and there is some slop.  Unfortunately, most of the
aluminum 3rd party arms are made for JR and then marketed as JR/Atx
compatible...which they're not really.

 

-M

 

________________________________

From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
On Behalf Of ronlock at comcast.net
Sent: Tuesday, July 12, 2005 8:35 AM
To: discussion at nsrca.org; discussion at nsrca.org
Cc: Bob Pastorello
Subject: Re: Interchange Airtonics/JR servo arms

 

Ive found it is a mixed bag.  Almost all will bolt on, and some 

Airtronics/JR servo and arm combinations fit properly.  Depending on 

particular model of servo and brand of arm, you may find a very slight 

bit of slop. It may show up as a slight trim change that that won't go
away.

 

Later, Ron Lockhart

	-------------- Original message -------------- 
	
	> Thanks, Ed. Didn't know it was one of those "close, but no
cigar" 
	> things.... I had been forced to use an Airtronics arm in the
distant past 
	> once on my JR servo.... glad to have better info! 
	> 
	> Bob Pastorello 
	> www.rcaerobats.net 
	> rcaerobob at cox.net 
	> ----- Original Message ----- 
	> From: "Ed Alt" 
	> To: 
	> Sent: Monday, July 11, 2005 8:31 PM 
	> Subject: [SPAM] Re: [SPAM] Re: servo horns 
	> 
	> 
	> > Bob: 
	> > The number of teeth are the same, however you will get a
sloppy fit when 
	> > you interchange them. Try a machined, snug fitting aluminum
arm meant for 
	> > a JR servo on an Airtronics and you will see what I mean.
You can make it 
	> > work, but the tolerances are not the same. 
	> > 
	> > Ed 
	> > ----- Original Message ----- 
	> > From: "Bob Pastorello" 
	> > To: 
	> > Sent: Monday, July 11, 2005 9:22 PM 
	> > Subject: Re: [SPAM] Re: servo horns 
	> > 
	> > 
	> >> JR fits Airtronics/vice versa. 
	> >> 
	> >> Bob Pastorello 
	> >> www.rcaerobats.net 
	> >> rcaerobob at cox.net 
	> >> ----- Original Message ----- 
	> >> From: "Ed Alt" 
	> >> To: 
	> >> Sent: Monday, July 11, 2005 8:15 PM 
	> >> Subject: [SPAM] Re: servo horns 
	> >> 
	> >> 
	> >>> Bill: 
	> >>> No, JR is different from Futaba. As far as I know, every
single major 
	> >>> servo manufacturer has their own unique spline design. 
	> >>> Ed 
	> >>> 
	> >>> ----- Original Message ----- 
	> >>> From: "Bill Pritchett" 
	> >>> To: 
	> >>> Sent: Monday, July 11, 2005 8:56 PM 
	> >>> Subject: servo horns 
	> >>> 
	> >>> 
	> >>>> All: 
	> >>>> Will Futaba horns fit ok on JR servos? 
	> >>>> Thanks 
	> >>>> Bill 
	> >>>> 
	> >>>> 
	> >>>> Bill Pritchett 
	> >>>> 765-744-9322 
	> >>>> 
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