R2 Internals

[roborg5000]

I have had a few customers ask the tooth count on the internals of the R2/R2D.

Here is an image for anyone else that may want this info.

[visa]

im bad it this kind of math, any what want to say what ratio that is, i dont think my 243 is right........

[rmdesignworks]

243 is what i get

24/8=3x24=72/8=9x27=243,,,,,,,,anyone care to add to this?

[broke it again]

24/8=3x24=72/8=9x27=243,,,,,,,,anyone care to add to this?

I think I just threw up a little and burst a capillary in my eye.

[Alekoy]

the ratio depends on the input pinion, but here is how to calculate the total ratio (according to my math at least):

I have added a (:1) on the gear ratios, to make it a little bit easier to understand, as you all might remember from school, dividing by 1 does nothing.

output-axle to idler-gear: 27:8=3,375(:1)
idler-gear to spur-gear: 24:8=3(:1)
that gives the spur-gear to output shaft a ratio of: 3,375x3=10(:1)

When you decide on a pinion you simply divide 24 (the number of tooths on the spur gear) by the number of tooths on the pinion.

Example with a 12T pinion: 24:12=2(:1)
then you will need to multiply all the gear ratios,
3,375x3x2=20,25(:1)

Example with a 8T pinion: 24:8=3(:1)
then you will need to multiply all the gear ratios,
3,375x3x3=30,375(:1)