This is a pack of three optional Align 121 Tooth Slant Thread Main Drive Gears, and are intended for use with the Align T-REX 450 series of helicopters equipped with the optional Align 12 Tooth Helical Motor Pinion Gear (AGNH45157). This updated high strength 121 tooth main gear features Mod 0.6 gears perfect for 450 helicopters. The increased gear pitch can withstand higher powers while at the same time minimizing operational noise. This gear is a great upgrade to withstand modern high power systems.
Features:
- Utilizes high strength polymer plastic with excellent rigidity and flexibility characteristics
- Mod 0.6 gears to withstand modern high powered systems
- Patented unique built in fan design to create induced air flow, effectively cooling electronics and motor
Specifications:
Gear ratio:1:10.08
Weight:35.3g
Needed To Complete:
- AGNH45157: Align 12 Tooth Helical Motor Pinion Gear
This product was added to our catalog on December 20, 2012
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Maris Arins Verified Owner Wednesday, Sep 11 2013 (about 12 years ago) Align Slant Thread Main Drive Gear (3) (121T) As usually, I don’t like Align prices.
For example Tarot gears would be 1/2 price or less if bought in right place, but the quality here is convincing.
gear is very straight if you need it desperately.
I know that a slight throw on main gear is no issue as long as it stays in ~1mm range, probably you get a vibration, but functionality is still there.
So here you should expect perfect shape.
Also I have a feeling that these gears are more rigid and somewhat substantial than Tarot for example.
If you agree with price, then you will not regret the purchase.
Slant gears with corresponding pinion will change the way your Heli sounds very much !!! This alone is worth to switch to this setup.
Just take your straight gear, undo one-way bearing holder from it and screw it on your brand new slant gear, replace with corresponding slant pinion (watch for shaft diameter 3.17 or 3.5) and enjoy 🙂 3 of 4 customers found this review helpful. Bruno Serpa Verified Owner Thursday, Jan 10 2019 (about 6 years ago) Align Slant Thread Main Drive Gear (3) (121T) Handy to have a spare set when learning to fly. Very well made. View all reviews
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