Longer main shaft for Corona oneway bearing mod - RC Groups
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Jul 16, 2002, 11:24 AM
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Longer main shaft for Corona oneway bearing mod


Anyone with a spare long main shaft for the Corona oneway bearing mod?
(Longer in 3/4" from the original one)

Thanks....
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Jul 16, 2002, 01:09 PM
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Sonic1's Avatar
Does any body have any info on this mod? What bearing is used?


Thanks.
Jul 16, 2002, 01:22 PM
Our Daddy and Heli Junkie
Fred Bronk's Avatar
There are a couple after market ones out there, I made up my own.

I got a one-way (torington) bearing from BocaBearing and placed it in a machined cap on the main gear held on with 2 4-40 screws. The shaft has to be lengthened about 1/2 inch and a collar is used to secure the shaft below the mod.
Jul 16, 2002, 01:25 PM
Registered User
Will pay you F.B for one....
Jul 16, 2002, 02:13 PM
Our Daddy and Heli Junkie
Fred Bronk's Avatar
Still testing, but looks good.
Jul 16, 2002, 02:55 PM
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Sonic1's Avatar
Fred,

Do you have the bearing part number?
Jul 16, 2002, 03:09 PM
Registered User
I have got a one way bearing 8mm (ext) 4mm (in)
cost 8$ part number Z402 - germany.
Got it from a guy in Germany who is doing a lot of upgrade but refuses to be expose in this forum claiming he is too busy

Any way he is now on 2 weeks vacation.
I can't find this part on the web, once he is back I will ask him as to where to buy this part.

ALL I NEED IS JUST ONE LONG MAIN SHAFT.
I HAVE A SPARE ONEWAY BEARING 8/4 I WILL TRADE
Jul 16, 2002, 03:13 PM
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Sonic1's Avatar
Does it look like one of these?.....

http://www.bocabearings.com/industrial/minature.htm
Jul 16, 2002, 03:27 PM
Registered User
more likt this (8mm out / 4mm in / 8mm height)
Jul 16, 2002, 03:28 PM
Registered User
and this.....
Jul 17, 2002, 01:30 PM
Registered User
Solved the problem of the longer shaft.
Bought ERGO 60 flybar and ut is strong and exactly 4mm!!!

Only 5$
Jul 17, 2002, 02:08 PM
Our Daddy and Heli Junkie
Fred Bronk's Avatar
Great!


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