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HomeAircraftHelicopterMain Discussion › Rubber grommets
10-11-2012 04:51 PM  5 years agoPost 1
deafheliflyer

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Arizona

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I have always used rubber grommets and eyelets but Im hearing for ELECTRIC helicopters, just hard mounting servos is all that is needed..

Any thoughts/comments? I can see in the Electric environment, vibrations arent as prominent as in Nitros... Rubber Grommets could introduce more slop than is necessary...

Maybe its time for me to discard those rubber thingys?

Crash-Prone and overcoming it!!!

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10-11-2012 05:17 PM  5 years agoPost 2
Magnumeng

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29 Stumps, CA

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Keeps them rubbers handy... Never know when you will need them.

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10-11-2012 05:32 PM  5 years agoPost 3
wrongler

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Brewerton, New York

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I have always used the grommets. I read somewhere it was a good way to do it.

Bill Whittaker

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10-11-2012 05:38 PM  5 years agoPost 4
BarracudaHockey

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Jacksonville FL

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You really dont need them for electrics.

Andy
AMA 77227
http://www.jaxrc.com

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10-11-2012 05:41 PM  5 years agoPost 5
MartyH

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USA

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You have a potential for greater precision if you don't use the grommets. But, you're now directing all loads directly into the servo with nothing to absorb the shock loading. Abrupt control movements or any vibration being transmitted either via the airframe or through the control linkage now will hammer the servo with no buffer.

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10-11-2012 05:43 PM  5 years agoPost 6
deafheliflyer

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Arizona

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Precisely why I am starting this post...

Rubber Grommets are supposedly for Nitros which are higher prone to vibrations than they are for electrics....

Just a thought..

Michael

Crash-Prone and overcoming it!!!

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10-11-2012 05:45 PM  5 years agoPost 7
Nycatt

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New York

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I always use them too. They help absorb and save the servo ears in the event of a crash.




Team Synergy
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10-11-2012 06:13 PM  5 years agoPost 8
RCHSF

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NC

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I use the rubber, but not the eyelets. I put a small washer, or use a screw with a washer attched so it holds, but still can do it's job.

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10-11-2012 06:40 PM  5 years agoPost 9
PilotPin

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Indiana -- USA

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I don't use the rubber or eyelet on any of my heli's from small electric to bigger nitro's. Haven't had any issues yet. Plus I don't do any hard flying.

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10-11-2012 06:56 PM  5 years agoPost 10
Ronald Thomas

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Gainesville, Fl, USA

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I use the rubbers and the eyelets. Can anyone really feel the difference between the two....I doubt it. I use them for more safety for the servos in a crash

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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10-11-2012 09:00 PM  5 years agoPost 11
BarracudaHockey

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Jacksonville FL

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Well you should definately use them in nitros.

With servo plates, no eyelets, without servo plates use the brass eyelets

Andy
AMA 77227
http://www.jaxrc.com

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10-12-2012 02:17 AM  5 years agoPost 12
helidevil

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Brunswick, ME

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i hard mount my electric servos, but i regret it when i have a crash. All the force is transferred to the gears and crack the top casing ive had to send them in to horizon twice already. I will be switching back to soft mounting. just my two cents.

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10-12-2012 02:27 AM  5 years agoPost 13
rcflyerheli

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Granbury, TX USA

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With servo plates, no eyelets, without servo plates use the brass eyelets
The brass eyelets are there for a purpose - that is to prevent the screw from compressing the rubber to the point it is no longer providing shock protection.

If you use the rubber grommets, the brass eyelets need to be used. Locate them so that the sharp edge faces towards the screw head/washer if there is one. You can cinch down enough that you will either deform the eyelet by crushing it, or the sharp edge will dig into the CF plate, so use care when tightening down the screws.

I used they rubber grommets and eyelets on my Goblin and X7 as they helped get the geometry correct, but I haven't used them on any other helis (600 and 700 sized).

Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
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10-12-2012 02:44 AM  5 years agoPost 14
Steff Giguere

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St-Eustache, Quebec, Canada

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I have always used them and always will.

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10-12-2012 03:19 AM  5 years agoPost 15
Volcano

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chicago

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I used teh rubber but things were less stiff with it so I took it off for max enjoyment.

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