gear ratio calc..........

[bob1961]

ok i have a bunch of online gear calc's that don't do what i'm looking for them to do, i doubt i will find one either....and i did a search to find one that will allow me to input my gear info from pinion/spur to tranny gears....i also want to use my gear input from a transfer case also, plus there is the ring/pinion diff gear ratio also i want to use also....i think to better understand what i'm after is the final wheel speed/axle rotation at the hub :lmao: ....i know the math to find the ratio's of each set of gears from pinion/spur, tranny, transfer case and diff's....but i'm looking to find how each output shaft RPM will effect each componet after each other right on out to the axle RPM....i know i need to start with motor RPM....is there such a beast of a calc that will let me input all the ratio's of each componet i have or is there a math-matical process to get what i'm after or am i just gonna have to try different gears in each unit to find what works best for what i'm looking for "thumbsup" ....i know i know :roll: ........bob

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[Harley]

This is all really simple math, it wouldn't be that hard to just do it by hand.

Or put a simple spreadsheet together, it's just basic division and multiplication.

 

[JeremyH]

This is all really simple math, it wouldn't be that hard to just do it by hand.

Or put a simple spreadsheet together, it's just basic division and multiplication.

Yep, it's simple multiplication or division. If you have a lot to do, Excel is your friend.

 

[bob1961]

yeah i thought it might be that way, i use excel but have trouble making the formulas to get it to do what i want........bob

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[WIDELOAD]

try this one http://scriptasylum.com/rc_speed/top_speed.html

Does just about everything you can ever want.

 

[03rubicon]

there is an r/c gear calculator app for the droid:mrgreen: