Spur wheel advice - Hard or Steel

[Asus27]

I'm looking at getting either the hardened Acetal spur wheel or the steel version, along with a pinion. 

 

Going from a 2s to a 3s and I'm unsure if the hardened version will be ok. Currently have the new version of the carnage. 

[Nitroholic]

If you mesh it right....a steel spur isn't necessary unless you are getting issues with stones and grit getting under the shell andruibibng your spur. Had this bigtime on a mini Losi, which had a natural stone trap!

Personally, a steel spur gear is a last resort....so I would start with the acetal one, and only go steel if I stripped it.

 

Also important to make suire your pinion is right for your spur gear material. A steel spur eats a brass pinion.

[Asus27]

Ah right ok. Problem is, I've removed the standard top plate for a carbon one and it's opened up the spur and the pinion setup. 

 

Planning on using a dust cover to try and protect the gearing. 

 

Would you try a hardened spur with a steel pinion?

 

[Nitroholic]

No. I wouldn't.

 

The only reason for fitting a hard steel pinion is because a steel spur gear would tend to cause excessive wear on a brass one. Acetal won;t do that... but the harder pinion might cause issues with the spur, especially if your mesh is not 100%. It's also just not necessary.

 

I try to avoid curing problems I don;t have when it comes to RC's, as you can often end up causing stress and issues elsewhere that you weren't expecting.

Edited March 28 by Nitroholic

[Asus27]

Oooo, well in the time I've read this, I ordered a steel pinion of modelsport as they didn't have any hardened spurs in stock. Spoke to the fella and basically said what I did on here and he turned around and said the steel pinion would be OK with the standard spur for now. 

 

I do have my doubts but it's all a learning curve I suppose. I'm use to nitro and petrol models and this ones my first electric. 

 

So if I don't use the the steel pinion or spur, would you recommend just using a hardened spur when they come back in stock along with a standard brass pinion? 

 

Had a look at a video showing how to mesh and seems simple enough, famous last words.