12-31-1969, 04:00 PM

R/C Tech Forums Expert How-Tos and Guides

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Tamiya TT02 Thread

12-31-1969, 04:00 PM

R/C Tech Forums Expert How-Tos and Guides

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05-25-2020 | 05:49 AM

#2491

Webarno

Tech Rookie

Joined: Apr 2020

Posts: 14

Quote:

Originally Posted by SteveM

Did you use a Tamiya pinion?

No, I couldn’t find one that was 28T.
I bought one from eBay.
Forum won’t allow me to post the link, but the item number is 274341095112

Last edited by Webarno; 05-25-2020 at 06:33 AM.

05-25-2020 | 10:34 AM

#2492

JJ100179

Tech Adept

Joined: May 2018

Posts: 163

From: Southern Germany

Quote:

Originally Posted by Webarno

Ok need some help.

I’ve just fitted a Tamiya 64T spur gear, along with a 48P 28T pinion gear.

I'm using the standard plastic motor mount whilst I wait for my YR adjustable one to arrive.

I’ve got it to fit nicely, but it sounds awful!
Like a sort of grinding sound. Previously it was nice and quiet, but after fitting these bits, it’s very loud. Is that normal, or have I done something wrong?

I have greased the gears too.

The Tamiya aspur gear (Module 0,6) does not match the 48dp pinion.
If you convert 48 dp into the metrical system you will have module 0,53. (1/48*25,4)
Vice versa: module 0,6 is more equivalent to 42dp.
The result of the combination with real module 0,6 is not smoooth, but "pepper mill"

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Last edited by JJ100179; 05-25-2020 at 12:05 PM.

05-25-2020 | 06:53 PM

#2493

Kremzeek

Tech Master

iTrader: (8)

Joined: Oct 2013

Posts: 1,147

From: Mt. Horeb, WI

Quote:

Originally Posted by Webarno

No, I couldn’t find one that was 28T.
I bought one from eBay.
Forum won’t allow me to post the link, but the item number is 274341095112

You want this:

https://www.tamiyausa.com/shop/optio...uorine-coated/

05-25-2020 | 07:47 PM

#2494

ittjv

Tech Master

iTrader: (32)

Joined: Jul 2006

Posts: 1,126

From: La Mirada, CA

Kremzeek, kremzeeeeek!!!!

Kremzeek and tomthegeek like this.

05-26-2020 | 03:07 AM

#2495

Webarno

Tech Rookie

Joined: Apr 2020

Posts: 14

Quote:

Originally Posted by Kremzeek

You want this:

https://www.tamiyausa.com/shop/optio...uorine-coated/

So that will prevent the grinding sound with the Tamiya 64T Spur gear?
I can't see what the difference is with that pinion compared to the one I've purchased, unless it's just the coating?

05-26-2020 | 03:52 AM

#2496

JJ100179

Tech Adept

Joined: May 2018

Posts: 163

From: Southern Germany

Tamiya 64T spur gear is Module 0,6
Your pinion ist 48dp Module
Kremzeek's pinion is Module 0,6.
48 dp does not match Module 0,6 (see posts above), layout shape and size of tooth is different
Okay?

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05-26-2020 | 05:22 AM

#2497

Webarno

Tech Rookie

Joined: Apr 2020

Posts: 14

Quote:

Originally Posted by JJ100179

Tamiya 64T spur gear is Module 0,6
Your pinion ist 48dp Module
Kremzeek's pinion is Module 0,6.
48 dp does not match Module 0,6 (see posts above), layout shape and size of tooth is different
Okay?

I'm new to all this stuff, so the above doesn't make much sense to me, apart from the fact it seems I've bought the wrong pinion?

Thanks

05-26-2020 | 05:37 AM

#2498

Webarno

Tech Rookie

Joined: Apr 2020

Posts: 14

Trying to find the Tamiya 28T pinion in the UK seems impossible.

Would this work:
https://wheelspinmodels.co.uk/i/316877/

Thanks

05-26-2020 | 06:05 AM

#2499

JJ100179

Tech Adept

Joined: May 2018

Posts: 163

From: Southern Germany

This will work!

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05-26-2020 | 12:04 PM

#2500

liljohn1064

Tech Champion

iTrader: (17)

Joined: Sep 2008

Posts: 5,926

From: Deerfield, WI

Quote:

Originally Posted by Kremzeek

I got the 3 hole ones. I tried running with really stiff springs all around and didn't like it. That might work well on carpet, but I wasn't getting the traction I wanted on asphalt. I may actually go back to the softer kit springs on the rear.

Are the SR Kit springs softer than the red springs?

05-26-2020 | 02:05 PM

#2501

SteveM

Tech Champion

iTrader: (165)

Joined: Aug 2001

Posts: 7,664

Quote:

Originally Posted by Webarno

No, I couldn’t find one that was 28T.
I bought one from eBay.
Forum won’t allow me to post the link, but the item number is 274341095112

Robinson Racing sells the Tamiya compatible pinions in .6 module.

05-26-2020 | 02:10 PM

#2502

SteveM

Tech Champion

iTrader: (165)

Joined: Aug 2001

Posts: 7,664

Quote:

Originally Posted by Webarno

I'm new to all this stuff, so the above doesn't make much sense to me, apart from the fact it seems I've bought the wrong pinion?

Thanks

Tamiya uses it's own proprietary gears, in .4 and .6 module which looks like 64P and 48P but isn't.

If you use the Tamiya high speed gear set (TAM54500) but do not use the included Tamiya spur gear from the kit, you can use traditional 48P or 64P spur and pinion gears. This option would give you the most flexibility on gearing.

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05-26-2020 | 02:27 PM

#2503

liljohn1064

Tech Champion

iTrader: (17)

Joined: Sep 2008

Posts: 5,926

From: Deerfield, WI

Quote:

Originally Posted by Webarno

Trying to find the Tamiya 28T pinion in the UK seems impossible.

Would this work:
https://wheelspinmodels.co.uk/i/316877/

Thanks

Yes, It's mod 6 with a 3.2mm bore (1/8"). Most motor shafts are 1/8" Standard.

05-26-2020 | 03:41 PM

#2504

Webarno

Tech Rookie

Joined: Apr 2020

Posts: 14

Thanks a lot for all the replies. Very helpful

I clearly still have a lot to learn.

05-26-2020 | 05:33 PM

#2505

Kremzeek

Tech Master

iTrader: (8)

Joined: Oct 2013

Posts: 1,147

From: Mt. Horeb, WI

Quote:

Originally Posted by liljohn1064

Are the SR Kit springs softer than the red springs?

If they're the same as the ones in the RR kit then they're quite a bit softer than the red springs.

liljohn1064 likes this.