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Blaze DFR motor pinion (Spur gear pitch ?)

Tristan CHARPENTIERTristan CHARPENTIER Club Members Posts: 3
edited November 2018 in RC Cars

Hi i would like to know if any motor pinion (i think it's called Spur gear pitch ? )is selled with the blaze DFR drit or with the motor o bought ?
TrackStar 21.5T "Out Law" Sensored moteur Brushless V2
If not can you give me a like to buy it the inner mesure is 5x12.3. i didn't find any information about that.

Comments

  • Tristan CHARPENTIERTristan CHARPENTIER Club Members Posts: 3

    What is the recommended pinion size ? with a spur gear of 84T and internal gear ratio of 2.1 for this motor ?

  • Nick_HKNick_HK ✭✭ Club Members Posts: 89 ✭✭

    There are a lot of factors here, but for 21.5T motor you want a final drive ratio somewhere between 4.5-5:1. You calculate this by dividing the number of spur gear teeth by the number of pinion teeth and then multiply that number by the internal ratio. Such as (84/35) x 2.1 = 5.04 But it will also depend on how big a pinion you can get to fit.

  • Tristan CHARPENTIERTristan CHARPENTIER Club Members Posts: 3

    Thanks

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