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HelicopterMain Discussion › hirobo one way """"again
01-26-2007 01:30 AM  10 years agoPost 1
vcptech

rrApprentice

Dominican Republic

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hirobo one way """"again, I don't get it 3 one way cracked in less than 10 gallons fuel???? I'm getting tired of be at the flying field with this issue too many times @##%$$%$%$%^ hirobo should have an answer
today I find a one way coming from an scale hirobo mechanic it is different the out side metal enclosure is not open and look stronger
I'll post picture if any of you know this part number

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01-26-2007 01:33 AM  10 years agoPost 2
marc8090

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Long Island, N.Y.

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Hirobo is coming out with a new hub that will use a sprag type bearing instead of the roller type one ways currently used. It should be trouble free.

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01-26-2007 01:46 AM  10 years agoPost 3
Syclic

rrApprentice

Northern Hemisphere Ont.

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Yes, the spraque type of one-way bearing can really take a kickin' and keep on tickin'.

Century has had them in their Predator 90's and Gassers for a number of years now.

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01-26-2007 01:50 AM  10 years agoPost 4
marc8090

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Long Island, N.Y.

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So does Miniature Aircraft and I've never heard of one failing.

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01-26-2007 02:23 AM  10 years agoPost 5
Rodney

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St.Cloud,Florida

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Is that a 50 sized, If so I hear that the Century hawk bearing will fit right in. Also you can get them at ace hardware.

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01-26-2007 02:40 AM  10 years agoPost 6
playfair

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Rochester, NY

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The "grease mod" didn't work for me, but JB Weld did.
Lined the spline with JB, put some around the 1 way, stuffed a paper towel through the hole to prevent contamination, and slip it in. Clean up the excess, then put everything back together and cam the MR shaft so everyting lines up right. Got close to 300 flts on my current bearing with no issues.


The sky is our canvas

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01-26-2007 02:49 AM  10 years agoPost 7
Leif

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USA

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Well I had one go out that I had JBWelded into the hub, so I'm back to using the grease mod. To be fair, I've only had one bearing crack so far.

MRC have announced that a new oneway is being introduced. That's enough information for me. I'll trust Jeff to keep us informed and let everyone know when we can get the updated parts.

Hirobo and MRC's commitment to quality products and service is what has me flying their helis today.

Leif

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01-26-2007 03:08 AM  10 years agoPost 8
Havoc

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Ky.

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I cracked one in the 50 but the epoxy or JB weld trick works well on that. On the 90 that trick didn't seem to work so well. But the new hub sounds great.

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01-26-2007 03:54 AM  10 years agoPost 9
chopperman1

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Huntsville, AL

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Are there any signs of a cracked one way?

Cliff

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01-26-2007 04:23 AM  10 years agoPost 10
Havoc

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Ky.

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I've had it two ways. It sounds like an over speed with a revmax of a flat curve until you switch it. With the Revlock mine sounded like it quit and then came back up during the auto. The revlock saw the over speed of the engine and pulled it way back. The revmax on a straight line curve wants to keep going back to the curve so it just sounds like an over speed. Either way, you know something is wrong. It also causes the tail to kick each time it slips. I guess it is also possible to have it fail completely such that you hear the engine running but still need to auto.

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01-26-2007 01:42 PM  10 years agoPost 11
reddragon

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Brooklyn, N.Y.

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I thought I was the only one with this problem.

You live and you learn.

Wayne - Fly it like you stole it! You're in good hands with Runryder!

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01-26-2007 02:07 PM  10 years agoPost 12
cmontoya

rrNovice

Santiago, RM - Chile

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The solution is 0414-309 (AUTO ROTATION CLUTCH)

I have never had anymore trouble with this parts although it use the same oneway bearing.

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01-26-2007 03:13 PM  10 years agoPost 13
MRC-Hirobo

rrKey Veteran

Edison, NJ

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The new sprague bearing auto hubs are just around the corner. This new assy has a proven track record so far and we have passed each noted "mile marker" where others have had the original ones break. The new assy has passed each "mile marker" and then some, and multiple people have flown it in testing with multiple different flying styles. This bearing is also of the same design used in other models but with a slightly different hub design.

When I get back from Germany, we will release the promotional details for all those who own a Freya, EVO, Xspec, etc and have bought from our dealers in the USA.

The part will not be free, unfortunately, but will be less than the E3 version and will be a consumer direct offer.

Be excited, you should be. This new part is what all us Freya fliers have been waiting for.

Jeff
MRC

MRC Host

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01-26-2007 03:23 PM  10 years agoPost 14
GScott

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Lewis Center, OH

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Jeff,

Is this only for 90 size ships or the Evo 50 as well?

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01-26-2007 03:36 PM  10 years agoPost 15
wurthless

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Redding Ca.

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When I get back from Germany, we will release the promotional details for all those who own a Freya, EVO, Xspec, etc and have bought from our dealers in the USA.
looks like we all will benifit from the new bearing,,,GREAT NEWS !!!!

QUICK! ,,,can someone turn the gravity off for just a second,,,,

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01-26-2007 05:25 PM  10 years agoPost 16
dgshaffer

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New Jersey

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I beat the hell out of my two EVO50's and have yet to have one fail. The Freya one failed on me but neither one on my EVO's have failed. I'm running the Delrin gear sets with the aluminum hub and I rarely bail out of an auto which puts a good deal of stress on them.

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01-26-2007 05:38 PM  10 years agoPost 17
gkoutsis

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Athens Greece

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Can somebody post a couple of pics of the failed hub?

I have an old Sceadu 50, converted to 50 and after 30 gallons its still on the first hub

George

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01-26-2007 05:49 PM  10 years agoPost 18
Havoc

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Ky.

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The one that failed on my 50 had a year of flying and several cases of fuel through it. Parts can fail and that is part of the game. I did have the delrin gear and anodized aluminum hub and I rarely bail out of an auto. I agree that can be hard on it. My other evo 50 has never had a one-way failure and is flown as much.

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01-26-2007 06:36 PM  10 years agoPost 19
RCtaz

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Leander, TX

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~Texas Renegade Rotorz~

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01-26-2007 06:56 PM  10 years agoPost 20
z11355

rrMaster

New England

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sometimes, the crack is almost invisible w/o the use of a good
magnifying glass and strong light.

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HelicopterMain Discussion › hirobo one way """"again
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