N_s, N_r → three standard ratios.
Ring fixed: G = 1 + Nr/Ns. Sun fixed: G = 1 + Ns/Nr. Carrier fixed: G = −Nr/Ns (sign per textbook convention). Uses sun and ring tooth counts only.
- Ring fixed4.1
- Sun fixed1.322581
- Carrier fixed-3.1
Planetary (Epicyclic) Gear Solver helps you n_s, n_r → three standard ratios. It is commonly used by domain specialists, operations teams, learners for planetary gear, epicyclic ratio, sun gear ring gear.
Planetary (Epicyclic) Gear Solver
N_s, N_r → three standard ratios.
- Runs entirely in your browser.
- For planning and education; verify critical decisions with qualified professionals.
Disclaimer: Specialty calculators provide rough estimates for planning and education, not professional engineering, tax, or legal advice.