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 Gearing Help

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strawb
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strawb

Posts : 1590
Join date : 2009-11-15
Location : Dubai

Gearing Help Empty
PostSubject: Gearing Help   Gearing Help EmptySat Jan 23, 2010 11:25 pm

need advice ...... im running my TB-03D on a 22T pinion and 64T spur gear .... im using a 9.5T 4500KV brushless motor ......

newbie question?

is this ok? ....... any risk of damage to the motor? esc? overheating?

thanks in advance
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J.Drift
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J.Drift

Posts : 3123
Join date : 2009-06-08
Location : Abu Dhabi, UAE

Gearing Help Empty
PostSubject: Re: Gearing Help   Gearing Help EmptySat Jan 23, 2010 11:30 pm

hi strawb
your FDR is ok i think its around 7 correct me if im wrong smile

you FDR will not damage your motor dont worry :cheers:
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strawb
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Gearing Help Empty
PostSubject: Re: Gearing Help   Gearing Help EmptySat Jan 23, 2010 11:34 pm

hi papi jon

thats like the 64 divided by 22 thingy multiplied by internal drive ratio right?...... i dont know what my internal drive ratio is?
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J.Drift
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J.Drift

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Gearing Help Empty
PostSubject: Re: Gearing Help   Gearing Help EmptySat Jan 23, 2010 11:51 pm

i think the FDR of that is 7.09
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strawb
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PostSubject: Re: Gearing Help   Gearing Help EmptySat Jan 23, 2010 11:54 pm

thanks papi ....
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LaNcE
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LaNcE

Posts : 2517
Join date : 2009-06-08
Location : Al Khan, Sharjah, UAE

Gearing Help Empty
PostSubject: Re: Gearing Help   Gearing Help EmptySun Jan 24, 2010 12:08 am

if you have, check you manual strawb..

if not, you can get it HERE

but you were right.. it's:

spur (64)/pinion (22) x internal gear ratio (2.438) = 7.09 FDR ~ 7 = advised FDR for drifting kits..
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strawb
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strawb

Posts : 1590
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PostSubject: Re: Gearing Help   Gearing Help EmptySun Jan 24, 2010 12:15 am

thanks papi lance ...... much appreciated
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strawb
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strawb

Posts : 1590
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Gearing Help Empty
PostSubject: Re: Gearing Help   Gearing Help EmptySun Jan 24, 2010 11:30 am

i ran the SP BL last night for about 10-15 mins and the cover for the pinion and the spur was so hot? is this normal?
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J.Drift
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J.Drift

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PostSubject: Re: Gearing Help   Gearing Help EmptySun Jan 24, 2010 11:45 am

the cover become hot not the motor? 😕 that is bit weird cover should not be in that temp unless you pinion & spur contact is bit tight that cause friction 🇳🇴
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strawb
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strawb

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PostSubject: Re: Gearing Help   Gearing Help EmptySun Jan 24, 2010 11:51 am

maybe my spur and pinion is tight ...... i'll try and loosen it a bit ...... how to gauge if its just right distance? ...... i dont want it too lose that it might slip
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J.Drift
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J.Drift

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PostSubject: Re: Gearing Help   Gearing Help EmptySun Jan 24, 2010 12:10 pm

just cut a piece of paper put it in between the spur & pinion
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cathurga
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cathurga

Posts : 1733
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PostSubject: Re: Gearing Help   Gearing Help EmptySun Jan 24, 2010 12:47 pm

The cover for the spur pinion might get warm because it is attached to the motor mount which is aluminium. Normally Tamiya include a paper 'spacer' between the motor mount and the motor. In most instances this is to avoid the heat of the motor coming in contact with the plastics and melting it...make sure you have a heatsink on the motor to draw heat away from the motor.
For getting the best gear mesh, the paper trick will work, but I prefer to set it by 'feel'. There should be a small amount of 'backlash' between the gears, but as you start getting finer pitch like 64dp it becomes more difficult to get right, and the same applied when using the paper trick on finer pitches....it becomes a bit of an art to get right, but eventually you get the skillz required smile
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strawb
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PostSubject: Re: Gearing Help   Gearing Help EmptySun Jan 24, 2010 3:57 pm

thanks for the tips ..... i adjusted accordingly and everything seems cooler now ....
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