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Scorpion Power GLOBAL 3D
HelicopterMain Discussion › What is the proper lube for heli plastic gears
05-03-2017 01:29 PM  21 days agoPost 1
KingCobra Heli

Senior Heliman

MA-USA

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What is the proper lube tube to use on helicopter plastic gear train?
I know nitro's kinda self lube with the exhaust smoke but electrics don't.

The Drylube brand is insanely expensive for a very small amount. Is this worth it?

What do you guys use?

Thanks in advance.

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05-03-2017 01:36 PM  21 days agoPost 2
Danny Calderone

Key Veteran

South Jersey

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Air.

Danny Calderone.

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05-03-2017 01:41 PM  21 days agoPost 3
Jeff polisena

Elite Veteran

westpalmbeachflorida usa

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Keep dry and clean 'air' , putting anything on gears will attract dirt and do more harm than help .

I stole it ,flew it and gave it back ;)

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05-03-2017 01:59 PM  21 days agoPost 4
Héli Suisse

Senior Heliman

Geneva Switzerland

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True air for autolubricant plastic gear is the best. Drylube is very effective even not cheap. I've tried it on giant models with great results.

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05-03-2017 03:47 PM  21 days agoPost 5
KingCobra Heli

Senior Heliman

MA-USA

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Wow, so no one uses lube?

The gears don't wear prematurely?

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05-03-2017 03:51 PM  21 days agoPost 6
Danny Calderone

Key Veteran

South Jersey

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no sir, just keep them clean and properly meshed.

Danny Calderone.

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05-03-2017 04:04 PM  21 days agoPost 7
Héli Suisse

Senior Heliman

Geneva Switzerland

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Yes sure. Delrin gears don't need any lubricant and if run on other same material will stand for long. It's only in a combination plastic/metal that the gears are wearing a bit more. Dirt and dust act like abrasive powder and enhance a premature wear.

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05-03-2017 05:05 PM  21 days agoPost 8
Dr.Ben

rrMaster

Richmond, VA, USA

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Drylube is well worth the expense. The bottle lasts a LONG time. Judicious use of lube between pinion and maingear if you do not fly in a dirt hole eases wear. If you temp the pinion on your model before and after using some lube, the difference is noticeable. I fly off grass, so the little bit of silicone or dry lube I use between the main gear and hard coat ali pinion does not hold any dirt. For those in dusty, arid climates or who fly off of dirt, then the benefit of lube likely will not be appreciated.

Ben Minor

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

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05-04-2017 04:13 PM  20 days agoPost 9
KingCobra Heli

Senior Heliman

MA-USA

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Thanks guys

I am seeing what looks like to me premature wear on the main gear specifically (metal pinion to plastic) and was very curious as to what others were doing.

It seems to me that at least those should be lubed. Just wanted to get a collective opinion on what everyone else thinks

I do appreciate everyone's opinion on the matter.

Thanks again guys.

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05-04-2017 04:36 PM  20 days agoPost 10
Four Stroker

Elite Veteran

Atlanta

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If the pinion is not cut correctly - and many are not - it will eat the main gear. Also if the pinion is not spaced correctly it will eat the main gear. Powdered main gear everywhere is an indicator of this.

Ask Dr.Ben who makes the best main gears.

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05-04-2017 05:31 PM  20 days agoPost 11
Peter Wales

Elite Veteran

Orlando Fl

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Metal to metal...grease often
metal to plastic...grease once
plastic to plastic...no grease

Peter Wales
http://scalehelicopters.org

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05-05-2017 12:16 AM  20 days agoPost 12
fastrc1

Key Veteran

Brooklyn, NY-USA

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I use Synthetic Polyolefin (PAO) Lubricant/Grease also known as M-kote EM-30L.

RIP Roman Pirozek Jr.
Team SRW Comp
Zeal Blades U.S. Flight Team
HRP
Team CanoMod

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05-05-2017 12:46 AM  19 days agoPost 13
EEngineer

Elite Veteran

TX

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Magic gear spray....

Logo 600SXs, 700XX, 800XX

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05-05-2017 06:49 AM  19 days agoPost 14
Shawnlh

Senior Heliman

Medicine Hat, Alberta, Canada

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This goes on all my plastic gears............. https://www.rotorquest.com/categori...0ml-102644.html

Trex 800 Pro DFC / Trex 700L Dominator / Trex Pro 700 DFC / Blade 180CFX w/Ikon / Futaba 18SZ / RealFlight 7.5

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05-05-2017 02:54 PM  19 days agoPost 15
Héli Suisse

Senior Heliman

Geneva Switzerland

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Metal to metal...grease often
metal to plastic...grease once
plastic to plastic...no grease
I fully agree and therefore would recommend Drylube for the second case. First I would use conventional grease for the tail gb for instance.

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05-09-2017 07:46 AM  15 days agoPost 16
Richardmid1

rrProfessor

Leeds, England

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In 13 years I've never replaced a main gear due to excessive wear. I don't lube the gears btw.

60% of the time, it works every time!

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05-09-2017 01:40 PM  15 days agoPost 17
Four Stroker

Elite Veteran

Atlanta

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Well that was my point exactly. I have never worn out a main gear in over 30 years of helicoptering. BUT I have seen main gears at the field reduced to powder in a few flights. 10 BHP makes a difference.

1) Gears made out of the wrong stuff.
2) Gears that do not meet the standard.
3) Pinions that are not cut properly.
4) Pinions NOT HARDENED.
5) Gears and pinions not spaced properly.

This is mainly a quality issue in both design and manufacture. A proper pinion gear has a curved tooth that takes maybe 5 CNC passes plus smoothing. OR maybe they have CNC that makes curves now ? Then it is polished and hardened. I have seen pinions made with two passes that had a ridge in on each tooth.

K&S used to sell "quiet" pinions as an aftermarket upgrade. But old pinions were a hell of a lot better - Kalt, MA, Schluter, Hirobo.

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05-09-2017 06:51 PM  15 days agoPost 18
EEngineer

Elite Veteran

TX

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"Gears and pinions not spaced properly."

Totally agree....

That should be #1 on your list....

Logo 600SXs, 700XX, 800XX

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05-09-2017 06:52 PM  15 days agoPost 19
EEngineer

Elite Veteran

TX

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Number 4) sounds like a medical issue.....

Logo 600SXs, 700XX, 800XX

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05-09-2017 07:37 PM  15 days agoPost 20
JuanRodriguez

Elite Veteran

The Villages, Florida

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I would agree .....medical issue.

May I recommend K Y Jelly as a possible solution???

Been there, done that and old enough to know better.....

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HelicopterMain Discussion › What is the proper lube for heli plastic gears
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