Hardened Mod1 Pinions
 

I keep reading over on rctech how everyone thinks that you'll be constantly replacing pinions if you run the hardened pinions with a stock steel spur. I certainly don't believe this is the case as no one on this site has been preaching that kind of information. So what are you guy's thoughts on the subject? Obviously a plastic spur is optimal, but aside from noise, is anyone really killing the hardened pinions that often on a steel spur?

Due to some flex of my motor mount and power peaks up to 2.5Kw my hardened pinion lasted only for 20 runs in a 11lbs truggy. The tooths cut off from a nitro clutch bell withstood about 80 runs under the same circumstances. I have now stiffened up my motor mount.

http://www.braintrust.at/2007/ds/rc/...ion_dead01.jpg
http://www.braintrust.at/2007/ds/rc/...ion_dead02.jpg

using a hardened pinion is the same as what comes on every 1/8 buggy/truggy out there, if gear mesh is spot-on it will last for a good while

I had a 48T steel spur in my MBX5T, no problems at all with my hardened pinions.

i run mike's hardened pinions and so far there is very little wear on them! i run them in my xt8 with a neu 1515 2.5d(1700kv) on 5s.

I run a hardened pinion in my E-Revo with a Feigao 9xl on 4s. No sign s of wear at all yet. The noise isn't even noticeable to me because I tend to run around other nitro rc's while bashing.

Hardened pinions are absolutely fine from my experience. My CRT .5 runs an 18t against the stock 46t spur, and the motor has even shifted, killing the gear mesh (audibly), and the pinion is still fine.

My Savage with a KB45 10XL and 10s2p A123 (20 cells total) runs an Ofna center diff with steel spur, and hardened 20t pinion. This setup has enough power to MELT a Kyosho plastic spur, with perfect gear mesh. And by melt, the teeth of the spur don't strip. And the hardened pinion takes the abuse no problem.

I have stripped quite a few of the plastic spur gears in my day, but since Mike came out with the ultra hard pinion gears I have been running the stock steel spurs with no wear or damage yet. Its nice to only have to take the diff out when you want to change the fluid or do mantenece. Not cuz you stripped a spur again.

The clutch bell hardened pinions last a while, but no where near as long as the RCM ultra hard pinions.

Good info man and thanks!

Have about 6 hours of run time on my CRT.5 with a hardened pinion, looks brand new.