RCCrawler Forums

jevyguy · 03-24-2011, 08:24 AM

What is the smallest spur gear for the micro? 52?

What is the biggest pinion for the micro with the stock size motor shaft?

spoo76 · 03-24-2011, 01:55 PM

I think you can go smaller using the spur from another losi micro but 52 is the smallest alloy for the crawler Ive seen on ebay last i looked

as far as pinions I ordered a double set of brass from benmlee on ebay here is the link to the single set
http://cgi.ebay.com/Losi-Micro-SCT-R...item3a62cccf65

these delrin are also available
http://thetoyz.com/cart/thetoyz_deta...0BAJA,%20%20DT

BurnLatex · 03-25-2011, 05:37 PM

I wanna know what I can use to gear it as slow as possible. It has the smallest pinion on it already so how big of spur can we find that doesn't hit the output shafts.

jevyguy · 03-26-2011, 06:12 PM

Thanks to those who have replied.
I am trying to make mine go faster. I am running a 2kV outrunner brushless and just need more wheelspeed.

jevyguy · 03-26-2011, 10:58 PM

Good to know. I never know what other parts will cross to different vehicles.

I orderd a brass pinion set and a 52 tooth aluminum spur. I am pretty certain that my little motor wont be able to handle the 17/52 combo without some major cogging, but if I can get a 14/52 to work that might be the ticket. We shall see

Kraken · 03-27-2011, 08:14 PM

What size are the factory spur gear and pinion?
And how do you calculate the effect of changing one or the other?
And last, what is the best setup for crawling not speed?

StreetKill831 · 03-27-2011, 08:59 PM

Quote:

Originally Posted by Kraken

What size are the factory spur gear and pinion?
And how do you calculate the effect of changing one or the other?
And last, what is the best setup for crawling not speed?

Having fewer teeth on the pinion (motor gear) means that it has to turn more times to rotate the the spur gear 1 revolution. As the number of teeth on a gear change so will the diameter. Just something to watch out for, it can cause making things mesh to be difficult.

Best setup for low speed crawling would be smallest pinion with largest spur.

Kraken · 03-28-2011, 07:59 PM

Thank you for the reply.
Do you know if the factory spur is 56 T ?

StreetKill831 · 03-28-2011, 08:03 PM

I don't know for sure but I think it is around 53T.

03-24-2011, 08:24 AM	#1
jevyguy Quarry Creeper Join Date: Jul 2005 Location: Utah Posts: 261	Pinion & Spur What is the smallest spur gear for the micro? 52? What is the biggest pinion for the micro with the stock size motor shaft?

03-24-2011, 01:55 PM	#2
spoo76 I wanna be Dave Join Date: Feb 2007 Location: South FL Posts: 3,349	I think you can go smaller using the spur from another losi micro but 52 is the smallest alloy for the crawler Ive seen on ebay last i looked as far as pinions I ordered a double set of brass from benmlee on ebay here is the link to the single set http://cgi.ebay.com/Losi-Micro-SCT-R...item3a62cccf65 these delrin are also available http://thetoyz.com/cart/thetoyz_deta...0BAJA,%20%20DT

03-25-2011, 05:37 PM	#3
BurnLatex Quarry Creeper Join Date: Nov 2010 Location: Canada Posts: 383	I wanna know what I can use to gear it as slow as possible. It has the smallest pinion on it already so how big of spur can we find that doesn't hit the output shafts.

03-26-2011, 06:12 PM	#4
jevyguy Quarry Creeper Join Date: Jul 2005 Location: Utah Posts: 261	Thanks to those who have replied. I am trying to make mine go faster. I am running a 2kV outrunner brushless and just need more wheelspeed.

03-26-2011, 10:58 PM	#5
jevyguy Quarry Creeper Join Date: Jul 2005 Location: Utah Posts: 261	Good to know. I never know what other parts will cross to different vehicles. I orderd a brass pinion set and a 52 tooth aluminum spur. I am pretty certain that my little motor wont be able to handle the 17/52 combo without some major cogging, but if I can get a 14/52 to work that might be the ticket. We shall see

03-27-2011, 08:14 PM	#6
Kraken Newbie Join Date: Dec 2010 Location: Canada Posts: 40	What size are the factory spur gear and pinion? And how do you calculate the effect of changing one or the other? And last, what is the best setup for crawling not speed?

03-28-2011, 07:59 PM	#8
Kraken Newbie Join Date: Dec 2010 Location: Canada Posts: 40	Thank you for the reply. Do you know if the factory spur is 56 T ?

03-28-2011, 08:03 PM	#9
StreetKill831 Quarry Creeper Join Date: Jan 2011 Location: Chelsea, MI Posts: 239	I don't know for sure but I think it is around 53T.

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