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Model Rectifier Corp . PowerHelis . JR-Spektrum

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Main Discussion > pinion gear mounting
 
 
peddler
Heliman
Location: Cadillac,MI USA

Hi guys, I'm new to electric helis. How do I mount the pinion gear to motor on my trex 450. Do I just press it on with a drill press or vise or what?

gotta want it
07-21-2008 02:26 PM
 
 
T-Rex-Flyer
Key Veteran
Location: Panama City, Fl

I just used blue lock-tite and snugged down the set screw. Have not had a problem in the three years.

If the wings are traveling faster than the fuselage, it's probably a helicopter.
07-21-2008 02:46 PM
 
 
Pistol_Pete
Elite Veteran
Location: Tampa Bay non-Buccaneer

Quote 
Do I just press it on with a drill press or vise or what?


whatever method you use, just make sure it goes in straight and that the opposite side of shaft has support to keep it from shifting.

<><>...the lunatic is in my head...<><>
07-21-2008 02:49 PM
HOMEPAGE  
 
 
red_z06
Key Veteran
Location: Dumont, NJ

For the most part, set screw seems to work but they were cases of pinion spining. I've marked where the set screw lands on the shaft. I then use dremel cutoff wheel to flatten where the setscrew goes.

This hasn't let go yet.

www.justinchi.com
07-21-2008 03:12 PM
HOMEPAGE  
 
 
Jerry Kirwan
Heliman
Location: RichmondTx

First question I have is have you tried installing it yet? Unless they have made changes it should slip on and is retained with a set screw locktighted

Jerry
07-21-2008 08:32 PM
 
 
Jeff polisena
Veteran
Location: westpalmbeachflorida usa

If motor came with kit you should be able to do as stated in previous post .But if pinion has no set screw then you need to use green loctight and press pinion on motor .

I dont know how to fly just how to not crash !!!!!
07-21-2008 10:58 PM
 
 
peddler
Heliman
Location: Cadillac,MI USA

Thanks for the replies. What I've got is a new EXI450 (TREX wannabe) that did not come with electronics. I switched my ESKY Belt motor over to the EXI to try but the esc went up in flames on the bench before I could fly it, must have been from the previous crash. So I deciced it was time to start switching it over to a TREX and ordered the Align motor and esc but the store was out of the pinion gears. So I've got the pinion ordered (11 13 15 set).I was thinking the gear was forced on like the BELT motor. Apparently the gear slides on the shaft (without pressure) and tightens down with a set screw. I was just concerned about putting pressure on the shaft, to force it on, and damaging the motor. Good idea to grind a flat spot on the shaft, I think, like we use to do with car gears. BTW, is the 13 tooth pinion the one most guys are using on the 430L 3550 kv motor? I'm running 325mm blades

gotta want it
07-22-2008 01:55 AM
 
 
TulOkFly
Senior Heliman
Location: Tulsa. OK - USA

I use the 13 tooth with the 3550KV motor.

Just Fly!!!
TRex 450
Blade 400
MX450XS (parts machine now)
07-22-2008 03:07 AM
 
 
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Main Discussion > pinion gear mounting
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