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-   -   Tamiya TB04 Pro (https://www.rctech.net/forum/electric-road/749510-tamiya-tb04-pro.html)

spyder_696 07-21-2014 08:37 PM


Originally Posted by VooDooPH (Post 13416119)
haven't stripped any gears since i bought the car. i run 12TBL with Life packs (which is a little bit faster than 17.5 blinky on lipo) and race every other Saturday with it. just make sure you shim properly. i also apply a thin coat of tamiya ceramic gears to the tb04's gears (including the diff's main gears)

hi, I already tried my best to shim as properly as I can and uses AW Tamiya grease on the mitre gears. They still strip running hobbywing justock and 8.5T motor with all stock gearing and ratios. I don't race just bash on kinda rough carparks.

I plan to buy just the normal cvd, with all suspension mounts in stock (upgraded to aluminium some Tamiya some Yeah racing). should I get 44mm cvd or 46mm cvd for the front only.

one replied 46mm. I saw tb-03 states 44mm (via google). but see no answer for tb-04. GPM CVD don't tell the length. I worried I buy cannot use.

thanks.

metalnut 07-21-2014 09:48 PM


Originally Posted by spyder_696 (Post 13416290)
... 8.5T motor ... I don't race just bash on kinda rough carparks.

Uhm, ok, so we're not comparing apples to apples here. I'm looking at 25.5T racing on smooth, grippy carpet. I have a feeling the gears will hold up much better in those conditions ;)

VooDooPH 07-21-2014 11:34 PM


Originally Posted by spyder_696 (Post 13416290)
I don't race just bash on kinda rough carparks.

should I get 44mm cvd or 46mm cvd for the front only.

does your ESC have reverse? do you mash on the brakes after hitting top speed? if you do, that's probably the reason you keep stripping gears :)

44mm would be my suggestion.

hths :)

CraigMBA 07-22-2014 12:27 AM


Originally Posted by metalnut (Post 13416404)
Uhm, ok, so we're not comparing apples to apples here. I'm looking at 25.5T racing on smooth, grippy carpet. I have a feeling the gears will hold up much better in those conditions ;)

No problem!

Buy two sets of 51255 evo5 ring gears with 39 teeth. It lowers the FDR (which your going to need for VTA) and bolts on.

spyder_696 07-22-2014 07:09 AM


Originally Posted by VooDooPH (Post 13416503)
does your ESC have reverse? do you mash on the brakes after hitting top speed? if you do, that's probably the reason you keep stripping gears :)

44mm would be my suggestion.

hths :)

Thanks so much on both replies.
Why is it after I release throttle to turn.
Then throttle again there will be some sounds from the gears.
I believe I shim well. Is carbon gear boxes flex lesser.
I believe those uneven surfaces on the car parks wears out my gear. The car park surfaces is really rough. But it's the only place I have.

Raman 07-22-2014 06:35 PM

Which gears are people stripping?

1. Bevel gears in side the diff
2. Ring and pinion inside gear box?

Ps: I've never heard of the gears being referred to as miter gears. So it's confusing to me.. Perhaps some others

VooDooPH 07-22-2014 07:52 PM


Originally Posted by spyder_696 (Post 13416934)
Thanks so much on both replies.
Why is it after I release throttle to turn.
Then throttle again there will be some sounds from the gears.
I believe I shim well. Is carbon gear boxes flex lesser.
I believe those uneven surfaces on the car parks wears out my gear. The car park surfaces is really rough. But it's the only place I have.

same question as above... which gears are you stripping? from your post, seems like your stripping the gears inside the gear diff...

metalnut 07-22-2014 10:00 PM

Miter gears are the gears that intersect at 90*, like these:

http://www.designworldonline.com/upl...teel-Miter.jpg

I believe the ones that are stripping are the ones on the shaft, if I'm reading the posts correctly.

TB03Racer09 07-23-2014 12:03 AM

The 'milter' gears are two 20t gears that are next to the spur gear. Basicslly the ones that make the transverse motor layout possible.

spyder_696 07-23-2014 08:56 AM


Originally Posted by VooDooPH (Post 13418533)
same question as above... which gears are you stripping? from your post, seems like your stripping the gears inside the gear diff...

http://flic.kr/p/ooz2Gs

http://flic.kr/p/oov1mM

Pic of the steel miter gear and all the gears that I have stripped.

Raman 07-23-2014 10:18 AM

I learned something new :). Miter gears are bevel gears that are 90 degree and 1:1 ratio

OVA 07-23-2014 10:36 AM


Originally Posted by Raman (Post 13419753)
I learned something new :). Miter gears are bevel gears that are 90 degree and 1:1 ratio

yes that's correct

CraigMBA 07-23-2014 11:43 AM


Originally Posted by spyder_696 (Post 13419556)
http://flic.kr/p/ooz2Gs

http://flic.kr/p/oov1mM

Pic of the steel miter gear and all the gears that I have stripped.

The ring and pinion gears aren't shimmed correctly. Either the pinion depth is wrong or the ring gear is too far away from the pinion, or both.

Were the steel gears more noisy or less noisy than the plastic ones when they were new?

metalnut 07-23-2014 11:53 AM

Have you guys tried the carbon reinforced gears (54593) before moving to the metal ones?

OVA 07-23-2014 12:42 PM


Originally Posted by metalnut (Post 13419945)
Have you guys tried the carbon reinforced gears (54593) before moving to the metal ones?

yes I have..it last a little longer than the plastic...I went for the metal..works great..


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