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| Keywords: Fixed Diff D.svg A fixed differential gear system This arrangement has a typical ratio of between 15 1 and 100 1 The ratio is given by <math>m_G \frac 1 \frac 1 \left \frac N_ R2 N_ S2 +1\right - \frac 1 \frac N_ R1 N_ S1 \left \frac N_ S2 N_ R2 +1 \right </math> where <math>N_ S1 </math> is the number of teeth on the No 1 Sun gear S1 red on the left <math>N_ S1 </math> is the number of teeth on the No 2 Sun gear S1 red on the right <math>N_ R1 </math> is the number of teeth on the No 1 Ring gear R1 orange on the left <math>N_ R2 </math> is the number of teeth on the No 2 Ring gear R2 orange on the rightn <math>N_ P1 </math> is the number of teeth on the No 1 Planet gear P1 dark blue These gears rotate about fixed axes <math>N_ S2 </math> is the number of teeth on the No 2 Planet gear P2 grey The fixed member is the cage C yellow the input member is the No 1 Sun and the output member is the Planet Carrier PC green self-made Inkscape 2008-03-18 Inductiveload Differential gear systems Drawings of gears and gearboxes Planetary gearing Transmissions SVG machinery | ||||
