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Other › Grease main gear?
04-05-2011 07:02 PM  6 years agoPost 1
LaurenceGough

rrElite Veteran

Reading, UK

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Hi guys,

Just reading some posts on another forum and they mentioned about greasing the main gear.

I've also read that apparently they recommend this in the TDR Rigid manual.

What are people's thoughts on this?

The only thing I don't like is that this might cause dirt/grass to become stuck to the main gear causing a mess.

Cheers,

Laurence

www.laurencegough.com
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04-05-2011 07:40 PM  6 years agoPost 2
mmc205

rrElite Veteran

PA - USA

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i've seen some say yes, some say no. I'm with you, it works well dry and i don't like the idea of stuff sticking to it that would make it worse.

***Logo 600 vbar***Henseleit TDR vbar***

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04-05-2011 07:41 PM  6 years agoPost 3
Ronald Thomas

rrMaster

Gainesville, Fl, USA

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I use a little silicone oil on mine, works well

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

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04-05-2011 08:46 PM  6 years agoPost 4
Justin Stuart (RIP)

rrMaster

Plano, Texas

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I too worry about the grease collecting dirt and becoming a polishing compound.

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04-06-2011 05:05 AM  6 years agoPost 5
helicraze

rrElite Veteran

Victoria - Australia

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Yeh there is some debate.

Basically any high powered helicopter should have grease on the gear.

The problem is heat from motor but more importantly heat generated from friction of the pinion so you should grease it.

The dirt is not an issue (like dirt in nitro is not really a problem either).

I regrease a little every month.
I clean the gear every few months and regrease.

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04-06-2011 06:28 AM  6 years agoPost 6
ESWLFSE

rrElite Veteran

Liberty Hill, TX

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Anyone tried SuperLube grease in this application?
Synthetic Greases
Super Lube® is a patented, multi-purpose synthetic lubricant, containing SYNCOLON® (PTFE) particles held in suspension. Super Lube® lasts longer and outperforms conventional petroleum-based greases. Super Lube® Grease is an exceptionally pure lubricant, because it is synthetic. This gives Super Lube® very stable and predictable chemical properties.

Super Lube® Grease with SYNCOLON® (PTFE) contains Polytetrafluoroethylene(PTFE) which is one of the most slippery surfaces (lowest coefficient of friction) known to man. The SYNCOLON® (PTFE) particles in Super Lube® fill surface irregularities of mating parts and are compacted to form a smooth, lubricated surface.

SYNCOLON® (PTFE) provides improved anti-wear properties, is waterproof, not washed away by acids or alkalis, and resists temperatures to 750°F. The SYNCOLON® (PTFE) particles in Super Lube's unique patented formula are held in constant suspension ensuring they will always be evenly applied to the lubricated surface.

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04-06-2011 06:52 AM  6 years agoPost 7
jphilli

rrKey Veteran

Atlanta, Ga.

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I apply hydrogen grease on my logo 600's and even 400's main gear every two or three flight for the first dozen; without doing that, I tend to strip main gears. After it's maybe every 30-50 flights.

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04-06-2011 04:34 PM  6 years agoPost 8
st99

rrNovice

uniontown, pennsylvania

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ESWLSFT,

The SYNCOLON sounds really good. I will google it and find some more info on it. Sounds like something that I would like to use.

Thanks for the info.

st99

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04-06-2011 04:48 PM  6 years agoPost 9
rexxigpilot

rrProfessor

Florida

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I'm against greasing. The exposed gear will pick up dirt and abrade the plastic more so when lubricating it. Also, don't use petroleum based grease. It will attack/weaken the plastic of most gears. Delrin does not ever need grease as it already has a very low friction coefficient. If you do grease, use a non-petro type.

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04-06-2011 08:17 PM  6 years agoPost 10
Rogman88

rrElite Veteran

West Monroe, LA

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SuperLube
Is that in the same family as KY and Astroglide

High Voltage just works better

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04-06-2011 08:49 PM  6 years agoPost 11
F1 Rocket

rrKey Veteran

Melbourne, Florida USA

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When I first started flying my TDR I measured a 15 deg reduction in pinion temp after a small amount of grease was applied to the main gear. I now grease all of my machines. Only a very small amount is needed. Dirt has not been a problem.

Danny

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04-06-2011 10:06 PM  6 years agoPost 12
st99

rrNovice

uniontown, pennsylvania

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Mabe Rogman88

I dont know but I think that I could find a better use for the KY or Astroglide. ha ha

st99

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04-07-2011 05:33 AM  6 years agoPost 13
Stolla

rrKey Veteran

Port elizabeth South Africa

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If you fly hard 3d and use a hot running motor i.e scorpion etc you will find the pinion gets extremely hot which in turn leads to gear stripping. a Thick Silicone lube same as they use for rc cars works well and will only attract dirt if you fly in very dusty conditions, i find this not to be a problem for me.
Same goes for delrin gears.

Common sense may not be common after all

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04-07-2011 05:51 AM  6 years agoPost 14
Justin Stuart (RIP)

rrMaster

Plano, Texas

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It would serve to reason that if the motor becomes extremely hot, that the pinion would become extremely hot too. But what about the white dust I find on the side of my helicopter's frame? It's not melted Delrin. It's Delrin that has been shaved off. Will the grease prevent this from happening?

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04-07-2011 06:14 AM  6 years agoPost 15
helicraze

rrElite Veteran

Victoria - Australia

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Can be from sharp pinion teeth, or also from fresh machined gear the flashing wearing off.

Use the grease on high powered electrics, unless you fly in the dirt its not an issue.

It took me ages to figure out when i stretched my own logo 600 to 690MM size. The manual says no backlash, after a while i put tiny bit in the tightest spot and some grease no problem, otherwise main gear does not last.

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04-07-2011 08:31 AM  6 years agoPost 16
ElectricSheep

rrApprentice

Orange County, CA - USA

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+1 for using good plastic safe, silicone-based grease on the gears. Just like they said in those old Brylcreem commercials: "A little dab will do ya." Measure the gear & pinion temps before and after greasing for yourself to verify.

As for all the worry about attracting a lot of airborne dust/dirt/grass/etc... I don't fly any decent heli when there's a load of airborne dust/dirt/grass/etc. in the air.

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04-07-2011 10:26 AM  6 years agoPost 17
wrongler

rrProfessor

Brewerton, New York

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ElectriSheep, Your showing your age! A little Dab will do Ya!

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04-07-2011 11:06 AM  6 years agoPost 18
HeliRush27

rrApprentice

Middle of Florida

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So, what grease should you use and how should it be applied? Dab one spot and rotate the gear, coat the entire gear edge?

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04-07-2011 12:13 PM  6 years agoPost 19
Stolla

rrKey Veteran

Port elizabeth South Africa

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Any lube as long as its plastic safe, usually non petroleum, but i've used vaseline(petroleum jelly) when i had nothing else without any detrimental effect so all depends what plastic. silicone is probably one of the easiest and safest although tend to loose lubrication ability fairly quickly so use more often,
Just lube the gear every 10mm or so it will quickly spread through

Common sense may not be common after all

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04-07-2011 02:32 PM  6 years agoPost 20
LaurenceGough

rrElite Veteran

Reading, UK

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Cheers guys, I'm going to give some silicone spray a go, it's pretty light stuff so it'll ease me into this whole lubing the main gear thing slowly .

Using a very small amount, just hoping for increased efficiency really.

www.laurencegough.com
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