12-tooth to 36-tooth gear ratio example
Follow the exact 3:1 reduction, one-third speed factor, 600 RPM output, and opposite direction.
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Gear ratio examples
Follow a 12→36 single pair and a two-stage 9:1 compound train with exact fractions, RPM, and direction.
Two-stage 9:1 compound gear ratio example
Combine 12→36 and 15→45 as one exact fraction, then calculate 200 RPM and same-direction output.
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