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Home✈️Aircraft🚁Helicoptere-AlignOther › One way bearing removal
11-08-2005 12:24 AM  14 years ago
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Learn to Fly

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Yalesville Connecticut

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One way bearing removal
Stripped a gear on the rex. How do I get the one way off? Do I need a tool? Thanks

Jeff
Believe nothing you hear, and half of what you see...
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11-08-2005 12:37 AM  14 years ago
Kermitdafrog

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Charleston, SC

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Yep, there is a tool ... if I remember.. about $4.

Rick
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11-08-2005 12:48 AM  14 years ago
steve 01

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Grand Rapids MI

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heat it in the oven at 300 degrees for 15 minutes and it will fall out , warm the new gear up for 5 minutes or so and drop it in ! Been there, already wasted 2 of them trying different ways to get them out
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11-08-2005 12:54 AM  14 years ago
BisonFlyer

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Winter Garden, FL

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if you use two sockets and a clamp u can easily press the bearings out.

socket sizes... 9/16th for supporting the gear and 5mm for pressing out the bearing

works perfectly without any damage to the gears or bearings, as long as u have basic tools at your disposal there is no reason to buy the bearing tool
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11-08-2005 12:59 AM  14 years ago
Ozydego

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Westerville, Ohio

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Steve.... Really!!! that would be cool, but are you sure just the bearing came out and not the metal sleeve around it too.... but if you swapped it for another, I guess not.... how did you come up with that idea????

I personally use the sockets and clamp method, but I got the align tool to do it for the next time its needed....
But Honey, I can't live with just stock.....
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11-08-2005 03:16 AM  14 years ago
Heli-nek

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Vancouver, B.C. Canada

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I find the bearing tool to be very helpful, especially at the field. All you need is a heavy wench/hammer and a hard flat surface.

Plus, it is only 4 bucks.
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11-08-2005 04:44 AM  14 years ago
ingo777

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Singapore and Munich

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yup the tool is top choice.... i hardly ever have an oven with me at the flying field....

ingo
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11-08-2005 05:07 AM  14 years ago
OICU812

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Edson, Alberta, Canada

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use a socket, its free and in your toolbox allready. ...Once upon a time there were Nitros, flybars and frequency pins...
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11-08-2005 05:08 AM  14 years ago
Tmaster

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TX

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I use a socket too. I set the gear over my bench vise and hammer it out nicely with the socket. I don't use the loctite or anything that just makes its hard to get out. I just clean the surfaces with rubbing alcohol.
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11-08-2005 05:38 AM  14 years ago
ichibon_kokojin

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Euless, Texas

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It only works one way...!
I goofed the first time that I did this....
Put the bearing in unpside down... It sucked...

I was so PO'ed that I cut the gear in half (as i had a spare)...

:-)

Measure twice cut once...
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11-08-2005 11:14 AM  14 years ago
Learn to Fly

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Yalesville Connecticut

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Thanks all. I must put an idiot mark on the gear before I pop it out.
Jeff
Believe nothing you hear, and half of what you see...
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11-08-2005 12:26 PM  14 years ago
steve 01

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Grand Rapids MI

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I learned by removing bearings from a raptor clutch assembly, by the way its the same bearing and if you notive there is writing on one side of the bearing to locate it properly. The plastic will not melt in the oven if you keep the heat around 300 even 290 or so will do it, less chance of damage to the bearing doing it this way.
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11-08-2005 01:03 PM  14 years ago
scoot

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Hampshire, UK

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so does the writting go on the top or the bottom of the gear once its in place?
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11-08-2005 02:11 PM  14 years ago
Yooper1

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Michigan

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I use drill press with the proper sized diameter metal rod, or a similar sized drill mounted upside down in the chuck, then a drill press vice to hold gear and bearing. Instant homemade bearing press.
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11-08-2005 02:19 PM  14 years ago
electron_flyer

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Cape Town, South Africa

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I found after passing the bearing through 2-3 gears using the press method, it started developring quite bad side play (rocking up and down while on the shaft). I think this is due to the bearing case getting distorted from the pressure on it. Maybe the heat method would be kinder to the bearing...?
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11-08-2005 02:43 PM  14 years ago
Saint728

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Honolulu, Hawaii

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You can just heat up the plastic gear with a small torch. Heat up the plastic then cut it with a pair of curved lexan scissors. It cuts through the plastic just like putty.

Take Care,
Cheers, Patrick
Check the hotties in my Gallery
http://rc.runryder.com/helicopter/gallery/9019/?all=photo
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11-08-2005 03:39 PM  14 years ago
Learn to Fly

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Yalesville Connecticut

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I used two sockets, worked great...and I already had the tools.
Jeff
Believe nothing you hear, and half of what you see...
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11-08-2005 04:30 PM  14 years ago
Ozydego

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Westerville, Ohio

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Saint... what about getting it on the next gear??? As far as the orientation goes, there is no writing on the rex gears, the way to tell is if you look at the two sides, one will have indentations in it.... makes it sorta look like a socket head.... this side goes down.... I always press mine from the top of the gear in, and I always press the socketlooking side down....But Honey, I can't live with just stock.....
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11-08-2005 08:58 PM  14 years ago
steve 01

rrProfessor

Grand Rapids MI

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there is writing on the bearing look at the instuctions and it will tell you which way it points,
As for the torch method, I would not recommend it, the torch gets a lot hotter than 300 deg, the inside of the bearing will melt away and destroy itself and I agree pressing the bearing multiple times will eventually ruin the bearing but if at the field and no other choice you do what you must to keep flying
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11-08-2005 11:11 PM  14 years ago
Saint728

rrProfessor

Honolulu, Hawaii

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Saint... what about getting it on the next gear???
What about the gear, the gear is usually stripped so your going to throw it away. As for heating up the one-way bearing, just heat up the plastic a little. It only takes a second or two to warm it up and then cut right through with the lexan scissors. Don't heat it until it melts the plastic. If your worried about using the torch, try a heat gun.

Really guys wouldn't be easier to just buy a new gear with one-way already installed for $9.00 or just buy a new one-way bearing for $6.00?

Take Care,
Cheers, Patrick
Check the hotties in my Gallery
http://rc.runryder.com/helicopter/gallery/9019/?all=photo
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