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HomeAircraftHelicopterThunder TigerOther › Need help changing a bearing in clutch bell
11-24-2006 02:25 PM  11 years agoPost 1
Snake Rimmer

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Up north in the England

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I can not get the bearing out of the bottom of my clutch bell can anyone give me any ideas of how to remove them.

To infinity and......................... the ground........... Team Rimmer

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11-24-2006 02:43 PM  11 years agoPost 2
colsy

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Cambridge, UK

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If your putting a new one in::

Unscrew the pinion, and knock it through from the top.

Col..

Only Quote From Experience.

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11-24-2006 02:45 PM  11 years agoPost 3
Snake Rimmer

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Up north in the England

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Tried to unscrew it but not havin much luck with it, any tricks to help it a long?

To infinity and......................... the ground........... Team Rimmer

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11-24-2006 02:47 PM  11 years agoPost 4
colsy

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Cambridge, UK

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I use water-pump pliers, on the pinion: the teeth in the jaws are a good match for the pinion modulus.

Col..

Only Quote From Experience.

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11-24-2006 03:04 PM  11 years agoPost 5
playfair

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Rochester, NY

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Hopefully there's no loctite on the pinion threads, as it's not needed and makes removal difficult.
I wrap some paper towel or a rag around the pinion teeth to protect, hold the bell in one hand, and use channel locks to unscrew the pinion.
It's easy to damage the bell pushing out the bearing, so be careful. May be easier to heat it up if you're replacing the liner as well.


The sky is our canvas

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11-24-2006 03:08 PM  11 years agoPost 6
Snake Rimmer

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Up north in the England

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Do I unscrew clock or anticlockwise?

To infinity and......................... the ground........... Team Rimmer

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11-24-2006 03:16 PM  11 years agoPost 7
colsy

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Cambridge, UK

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Anti-clockwise.

Col..

Only Quote From Experience.

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11-24-2006 03:52 PM  11 years agoPost 8
Snake Rimmer

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Up north in the England

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Thanks took some doing but got it off!

To infinity and......................... the ground........... Team Rimmer

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11-24-2006 08:00 PM  11 years agoPost 9
hockeysew

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Co-USA

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Put the shell in the oven at 300 degrees with the open end down-
Give it 10 minutes or so and it should come out with minimal effort-
When you go to put the new bearing in put it in the freezer for a couple hours and then heat the shell again for 10 minutes-
The bearing will drop right in........

Liberals are like a "Slinky", useless but entertaining when pushed down stairs....

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11-24-2006 08:41 PM  11 years agoPost 10
playfair

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Rochester, NY

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I don't know about the freezer thing-
For one, it only drops the bearing temp around 70 degF (compared to raising the aluminum temp 230degF in the oven.
Second, steel has about half the coefficient of thermal expansion as aluminum.
Lastly, water condensation on collects instantly on the bearing once removed from the freezer.


The sky is our canvas

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11-24-2006 09:00 PM  11 years agoPost 11
BarracudaHockey

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Jacksonville FL

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I've never had to freeze a bearing to install it into a heated aluminum chassis like that or engine bearings.

Andy
AMA 77227
http://www.jaxrc.com

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11-24-2006 11:47 PM  11 years agoPost 12
Yug

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UK. Herts

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playfair said it all

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11-24-2006 11:59 PM  11 years agoPost 13
colsy

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Cambridge, UK

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Second post said it all!!!

YUG, get back on your sim.

Colin..

Only Quote From Experience.

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11-25-2006 01:21 AM  11 years agoPost 14
Yug

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UK. Herts

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OK

but you didn't mention how to get a new one in

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11-25-2006 01:29 AM  11 years agoPost 15
colsy

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Cambridge, UK

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Point taken

Col.

Only Quote From Experience.

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11-25-2006 01:34 AM  11 years agoPost 16
Yug

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UK. Herts

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damn me PCs broke

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11-25-2006 03:27 AM  11 years agoPost 17
playfair

rrKey Veteran

Rochester, NY

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Yug, if the PC's broke, how are you posting?

You can just press the new bearing in, against the outer race (not the inner; the proper socket works well). Heating the bell back up will make it easier.


The sky is our canvas

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11-25-2006 09:45 AM  11 years agoPost 18
Snake Rimmer

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Up north in the England

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The new one popped straight in with just a little pressure from my fat thumb.

To infinity and......................... the ground........... Team Rimmer

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HomeAircraftHelicopterThunder TigerOther › Need help changing a bearing in clutch bell
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