Invention relates to High Reduction Ratio Planetary gear train. Gear System comprises planet gears revolving around the sun gears and planet gear are mounted around the sun gears and additional orbiting gears along with planet gears connected to moveable and stationary membranes. The present gear system provides high torsional rigidity, high torque carrying capacity and highly efficient planetary gear train along with high reduction ratio without any teeth profile modification. Reduction ratio of 60 is achievable in single stage.
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