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Home✈️Aircraft🚁HelicopterMiniature Aircraft Whiplash & Fury 55 › proFlex Starter Bearing service
09-07-2006 03:24 AM  14 years ago
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KCT

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Ontario, Canada

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proFlex Starter Bearing service
Can the proFlex Starter Bearing be serviced ? If so is there a specific procedure that needs to be followed ? Are special tools needed to do that ?

Thanks

Kay

That's not flying, that's crashing with style...

TeamBob00, WildCat, Helitron,
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09-07-2006 04:16 AM  14 years ago
jake26

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central cali

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ummm yep i worked on mine some...it consists of a brass bushing, one-way bearing, and another brass bushing in that order. all u got to do is unthread it. then drive out the one-way. i was able to make a sweet punch thanks to a lathe i have at work! maybe a deep walled socket will also work.
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09-07-2006 08:04 AM  14 years ago
rcheliflyer

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calif., usa

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The one with the non removable tip is non servicable, unless you can
figure a way without destroying it ?
The removable tip style can be repaired,

http://runryder.com/t91419p1/

Update on the bearings, looks like the Trex one way bearing
is the same as the ones used in the Proflex and a lot cheaper.
I bought a couple from Rick's and they look the same.

Also the new upgraded tip is availible from MA
part# is 4684-2 and it retails for $23.95 ,
looks like it only has 1 drive bearing in it though ?
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09-07-2006 02:53 PM  14 years ago
KCT

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Ontario, Canada

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Thanks guys, I have two older ProFlex that seem not servicable by default, great design by Min Air
But the one I want to service seems to be disigend so it can be
dissassembled. I was just wondering from which side to push out the
one way bearing, if that matters.
I got replacement bearings already and I could make something on my
lathe too if neccessary.

Aynway, thanks

Kay

That's not flying, that's crashing with style...

TeamBob00, WildCat, Helitron,
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09-07-2006 08:48 PM  14 years ago
jake26

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central cali

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rcheliflyr good luck with the t-rex bearings as i went through 3 of them. i guess thats why they are cheaper lol!
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09-13-2006 04:18 AM  14 years ago
KCT

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Ontario, Canada

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jake26,

I am actually not using the T-Rex bearing, I am using the original
bearing made in Germany. So far it is working for me. Just for my
curiosity, how much head shimming do you have on your engine(s),
that ruined your 'cheap' starter bearings ?

Cheers

Kay

That's not flying, that's crashing with style...

TeamBob00, WildCat, Helitron,
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09-13-2006 04:39 AM  14 years ago
jake26

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central cali

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the standard .008 that the cspec came with
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09-14-2006 04:46 PM  14 years ago
rada70

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Westchester, NY

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I had 2 ProFlexes. I then baught a one way shaft with thunder tiger adapter. It works like a charm. It's maintenance free. I've had it on all my MA helis for a few years now.Just do it.
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09-15-2006 07:14 PM  14 years ago
funkyflyer

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Griffith, IN.

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I'm glad I came across this thread. The Trex bearing works great, it seems like the exact same thing. Had the same things stamped into it. Now, does anyone know where to get those brass bushings?Wow, the ground was closer than I thought.
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10-13-2006 06:06 PM  14 years ago
BigEmpty12

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littleton,co

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I'm sure that you have already come up with a solution, but another thing that works great (which I have done) is the one way bearing for 1/10th scale rc cars (from their ez-start system) is the right diameter. They also come pressed into a nut. I just tack weld them to the end of the shaft. works great. If they go bad just cut the welds and weld a new one in. I haven't had one go bad yet, but they are more robust than the trex one ways. I actually made my own start shaft from an old $10 thundertiger start shaft I had laying around and a flex socket. The whole thing cost me about $15 and it hasn't failed yet.
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