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HomeRC & Power✈️Aircraft🚁Helicoptere-Scorpion Electric Components › how bad will dust in sandy enviroment effect a scorpion motor vs neu?
08-22-2008 01:31 AM  12 years ago
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FenderBean

rrElite Veteran

Huntsville Alabama

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how bad will dust in sandy enviroment effect a scorpion motor vs neu?
Going to Iraq and i have read about the scorpion bearing problem and having to oil them about every 8 flights. I was wonder if the NEU motor had a better bearing system that would hold up better.
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08-22-2008 01:50 AM  12 years ago
Heli 770

rrProfessor

USA.

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Scorpion Motors tells you to oil bearings every 3-5 flights.

Neu says when the bearings start to make noise, return the motor for bearing replacement.
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08-22-2008 01:56 AM  12 years ago
FenderBean

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Huntsville Alabama

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so im wondering is the NEU motor bearing sealed?
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08-22-2008 02:14 AM  12 years ago
Heli 770

rrProfessor

USA.

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I just looked at my bearing and its a sealed bearing.
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11-22-2008 05:41 PM  11 years ago
supertigre

rrApprentice

Castle Rock, Colorado

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Are you sure it is sealed? Most of these only have shielded bearings and dust can get in there. Easy way to tell is if the "seals" are shiny metal, then they are shields. There is a small gap between the shield and the inner race.

Sealed bearings will have a black or other color rubber seal. These should be good for the life of the motor unless the seal gets damaged. In extremely dusty or sandy places, the seals can actually wear after a while and let the grease out and dirt in.
Paul Mcintosh
Owner-CRCustom.com - custom vinyl lettering, banners, signs
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11-22-2008 07:22 PM  11 years ago
Heli 770

rrProfessor

USA.

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supertiger
The bearing is all the same color except for what retains the cover it's darker with notches all around it and it's not made to disassemble like a shielded bearing with the retainers. The clearance between the cover and inner race is so close that all you can see is a line around it.
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11-22-2008 07:58 PM  11 years ago
Quandumphone

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Yuma, AZ

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I'm looking at my NEU 1515D right now and it appears shielded, not sealed. Dusty, sandy environments are going to be tough on anything. I'm in that type of environment now and it's a tough call on oiling procedures because of the inherent attraction oil has to dirt. Sealed would be better but that may be a specialty item for custom order and more cost.

By the way, I just had my bearings replaced and NEU was very fast about it considering how busy they are.
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11-22-2008 08:24 PM  11 years ago
Heli 770

rrProfessor

USA.

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You can always get sealed bearings installed them yourself.
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11-23-2008 04:35 PM  11 years ago
supertigre

rrApprentice

Castle Rock, Colorado

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Heli770,

That is a shielded bearing. There are a couple of types with some that can be removed and others that are permanent. The removable ones usually have a snap ring in the outer race.
Paul Mcintosh
Owner-CRCustom.com - custom vinyl lettering, banners, signs
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11-23-2008 04:39 PM  11 years ago
supertigre

rrApprentice

Castle Rock, Colorado

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Quandomphone,

What size are the bearings? I can likely get sealed bearings for most motors. There will be a SLIGHT penalty for the little bit of drag from the seals.
Paul Mcintosh
Owner-CRCustom.com - custom vinyl lettering, banners, signs
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11-23-2008 04:47 PM  11 years ago
Heli 770

rrProfessor

USA.

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I looked at the bearing and it ends with the letter "Z" not "ZZ". Must be a shielded bearing. Thanks.
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11-23-2008 05:01 PM  11 years ago
supertigre

rrApprentice

Castle Rock, Colorado

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Heli770,

If you are looking on the bearing, you will only see one "Z" because that is the shield you are looking at. If the bearing has shields on both sides, it is a "ZZ" bearing. For seals, the most common type is designated "RS" and a double sealed bearing will be "2RS". I have F695ZZ in stock and am ordering F695-2RS.
Paul Mcintosh
Owner-CRCustom.com - custom vinyl lettering, banners, signs
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11-23-2008 05:35 PM  11 years ago
Heli 770

rrProfessor

USA.

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What I have is F625Z. What do you have thats 2RS to replace it?
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11-23-2008 07:46 PM  11 years ago
supertigre

rrApprentice

Castle Rock, Colorado

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give me a week or two to get some in.Paul Mcintosh
Owner-CRCustom.com - custom vinyl lettering, banners, signs
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