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T-REX 500 › Scorpion 1900 motor bearings
12-22-2008 12:15 PM  8 years agoPost 1
uf-engineer

rrApprentice

Jacksonville,​Florida

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After about 20 flights on my Scorpion 1900 motor (5S), I hear a squeeling. I should have known because my gyro was acting up. I believe its the motor bearings. Should I send the motor back to Scorpion? Where can I fine the address?

OR, should i replace the bearing myself? If so, what bearings? How hard is the task??

Thanks
Mike

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12-22-2008 04:51 PM  8 years agoPost 2
xahhax

rrApprentice

Switzerland,​Lausanne

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It's easy to do. order the bearing here
http://www.innov8tivedesigns.com/pr...products_id=438

(be careful 2 versions of the 3026).

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12-22-2008 08:00 PM  8 years agoPost 3
OICU812

rrMaster

Edson, Alberta,​Canada

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Did you oil them? It clearly states this in the manual. Scorpion motor bearings need to be oiled, as preventative maintenence oil them every 8-10 flights with the micro oiler, only takes a minute and they laast.

...Once upon a time there were Nitros, flybars and frequency pins...

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12-22-2008 08:18 PM  8 years agoPost 4
blbills

rrKey Veteran

Provo, UT

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Bearing failure is the only thing that isn't covered in the warranty. I just had mine go out too, pretty pissed. Ordered some ceramics from readyheli and I'll see how they hold up.

Brian

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12-22-2008 08:38 PM  8 years agoPost 5
OICU812

rrMaster

Edson, Alberta,​Canada

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blbills, were you oiling yours to?

...Once upon a time there were Nitros, flybars and frequency pins...

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12-22-2008 09:01 PM  8 years agoPost 6
aaron07

rrNovice

Sydney, Australia

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I would replace your bearings with ceramic bearings. You can find them at Readyheli or Helidirect, but first make sure what version of scorpion motor you have as the bearing kits are different.

V1: Black wires / 3 bearings
V2: Colored wires / 2 bearings

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12-22-2008 10:54 PM  8 years agoPost 7
uf-engineer

rrApprentice

Jacksonville,​Florida

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My motor serial number starts with IC. Do I have a version one motor? What is the difference between v1 & v2 other than one has two bearing and the other has three?

THanks

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12-23-2008 04:53 AM  8 years agoPost 8
aaron07

rrNovice

Sydney, Australia

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V1 has a collar and black wires
V2 has an E clip and colored wires

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12-23-2008 03:23 PM  8 years agoPost 9
blbills

rrKey Veteran

Provo, UT

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*Notice*

Open your motor up before you order bearnings. Mine has all of the characteristics of a V2 motor (colored wires, e-clip etc...) but it had the three bearings in it. I'm sure glad I checked before I ordered the wrong ones.

Brian

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12-23-2008 03:52 PM  8 years agoPost 10
Heli 770

rrProfessor

USA.

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The V2 has three bearings in it, except the 4025 and 4035 has two bearings.

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12-23-2008 05:41 PM  8 years agoPost 11
uf-engineer

rrApprentice

Jacksonville,​Florida

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I removed the motor and spooled it up with it mounted on my bench. I didn't hear the squeeling as I did while the helicoper was in flight. Could the bearing in the motor be OK.

How can I tell if the bearings are OK in the motor without trying a different motor all together?

Thanks

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12-23-2008 08:08 PM  8 years agoPost 12
OICU812

rrMaster

Edson, Alberta,​Canada

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Did you oil it? Has anyone oiled theres that is complaining about their bearings and if so how often?

...Once upon a time there were Nitros, flybars and frequency pins...

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12-24-2008 12:59 AM  8 years agoPost 13
blbills

rrKey Veteran

Provo, UT

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Mine developed side to side play and that is how I found out that the bearings were bad. No squeel or anything.
The V2 has three bearings in it, except the 4025 and 4035 has two bearings.
I'm so confused. I ordered the 3 bearing v1 set from readyheli and they were exactly the same as the ones I took out. So is my motor a v1 or v2?

Brian

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12-24-2008 02:30 AM  8 years agoPost 14
Heli 770

rrProfessor

USA.

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blbills
If your motor is a HK-3026 and it has three ball bearings than it's supposed to be a V1, according to Innov8tive Designs. I just found something out that's mind blowing! Innov8tive Designs says to oil the motor bearings every 5-6 or 10-12 flights depending on what motor you have. Well, I was at Scorpionsystem.com. Products info: Brushless Outrunner Motor It says the motor bearings are "High quality shielded and PERMANENTLY LUBRICATED ball bearings are used to support the motor shaft in ALL our motors".

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12-24-2008 04:50 AM  8 years agoPost 15
blbills

rrKey Veteran

Provo, UT

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Take a look at readyheli's website:
http://www.readyheli.com/Replacement_Bearings_s/254.htm

Is that incorrect then?

Brian

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12-24-2008 05:02 AM  8 years agoPost 16
OICU812

rrMaster

Edson, Alberta,​Canada

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It says on the information sheet included to oil the bearings, this is nothing new and it takes about 30 seconds to oil them with the oiling kit, http://www.readyheli.com/Scorpion_M...it_p/oilkit.htm

.....which is like 5-6 bucks, and will last for a season. I have oiled Actro bearings, NEU bearings, and many more and it makes all of them of all brands last "MUCH" longer. No one answered my questions in regards to this, thus I suspect they were not oiling their bearings from the start, this is and has been the culprit for many people, including myself in the beggining, guess I was to lazy to read or look at the box and instructions.

...Once upon a time there were Nitros, flybars and frequency pins...

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12-24-2008 05:10 AM  8 years agoPost 17
OICU812

rrMaster

Edson, Alberta,​Canada

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Quoted from this page.

http://www.scorpionsystem.com/catal.../S-HK30-1900KV/

4th paragraph down.

Scorpion Motors are built to last, and are backed with a 2-Year warranty against defects in materials or workmanship. However, due to the high RPM of these motors, and the fact that we cannot control the installation and setup, the bearings are not covered by the 2-Year warranty, nor is any subsequent damage caused to the motor by a bearing failure. Bearings are a normal wear item, and as such, need to be maintained and changed periodically. For maximum life, make sure that a sufficient gap is left between the pinion and main gear during motor installation to avoid binding, and put a small drop of oil on each bearing every 5-6 flights. It is the responsibility of the pilot to ensure that the bearings are maintained properly.

Now this being said as a minimum I have been oiling mine every 10 flights, "various sizes" every 10 flights or so, and on a few of my 30HK series have 100+ flights, no sounds, no issues, be well.

...Once upon a time there were Nitros, flybars and frequency pins...

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12-24-2008 12:43 PM  8 years agoPost 18
uf-engineer

rrApprentice

Jacksonville,​Florida

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No one answered my questions in regards to this, thus I suspect they were not oiling their bearings from the start, this is and has been the culprit for many people, including myself in the beggining, guess I was to lazy to read or look at the box and instructions.
I have not oiled my bearings. I'm not sure if my bearings are bad. How much side to side play is to much? None??

Are the ceramic bearing they way to go? I don't like ceramics because when they fail they usually shatter leaving fragments everywhere. This have been my experience with nitro engines. I haven't tryed them in an electric motor.

THanks

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12-24-2008 01:29 PM  8 years agoPost 19
supertigre

rrApprentice

Castle Rock,​Colorado

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bearings

I am trying to get some special sealed bearings made up for these motors that should eliminate the need for oiling. If it is successful, ceramics will be next.

No need to worry about shattered ceramic bearings in electric operations. The dynamics of electric motors are very different than glow engines. Ceramic bearings should last a LOT longer.

Paul Mcintosh
Owner-CRCustom.com - custom vinyl lettering, banners, signs

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12-25-2008 10:28 AM  8 years agoPost 20
helicraze

rrElite Veteran

Victoria - Australia

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One thing about scorp motors is that all 3 i bought had side to side movement in the bearing from new which in my books if i can feel it with my fingers is unacceptable.
But i still fly it. I'll see how it goes.

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