How to match speed and torque for your application-F series gearbox
H1: F Series Gearbox Ratio Calculation: How to Match Speed and Torque for Your Application
H2: Why Proper Ratio Selection Matters for Your Equipment
Choosing the wrong gear ratio for F series parallel shaft gearbox can lead to motor overload, premature wear, or insufficient torque. Whether you are selecting a parallel shaft speed reducer for a conveyor or an industrial mixer, the gear reduction calculation must match both speed and torque requirements
H2: Step-by-Step Ratio Selection Process
Step 1 – Determine Required Output Speed
Calculate based on your machine’s operational needs (e.g., conveyor belt speed, mixer RPM).
Step 2 – Calculate the Gear Ratio
Using ratio = input RPM ÷ output RPM. For a 1450 r/min motor driving a conveyor at 25 r/min:
i = 1450 ÷ 25 = 58:1
Step 3 – Verify Torque Capacity
F series offers output torque from 200 Nm to 18,000 Nm. Ensure the selected F series gearbox ratio
delivers torque exceeding your load requirements with at least 20% safety margin.
Step 4 – Select the Right Frame Size
F series provides 11 frame sizes from F27 to F157, covering 0.12 kW to 200 kW.


