Estimate running torque, acceleration torque, recommended motor torque, reflected inertia, and motor power for linear or rotary motion systems.
Use this for early servo sizing, concept design, pulley-driven axes, conveyor-style drives, rotary indexers, and rough motor selection in industrial automation equipment.
Servo sizing is more than torque. Use this first-pass estimate, then check gear ratio, reflected inertia, speed limits, duty cycle, and vendor torque-speed curves.
Start with motion torque, then verify gearing, output torque, speed, and related mechanical assumptions.
Estimate running torque, acceleration torque, total motor torque, recommended motor torque, reflected load inertia, and estimated motor power.
For this simplified model, the main load input is treated as a force-equivalent load in pounds. Use it for early estimating, not as a final motor sizing calculation.
Useful for belt, pulley, wheel, and conveyor-style motion with reduction.
Useful for indexing tables or rotating loads with external inertia.
Useful for a simple first-pass direct-drive axis estimate.
Save servo torque setups, reload previous inputs, and reuse common motion sizing checks.
This is a practical first-pass sizing calculator. Final servo selection should still consider true reflected inertia from all rotating components, move profile shape, gravity loads, gearbox backlash, duty cycle, shock loading, regenerative effects, and vendor torque-speed curves.
A servo may pass the estimated torque calculation but still fail the application if the motor cannot provide the torque at the required RPM, if the reflected inertia ratio is poor, or if the duty cycle creates too much heat.
This tool gives a strong first-pass servo estimate, but real motor selection changes quickly once you include full inertia modeling, move profile shape, gravity effects, transmission stiffness, backlash, dwell pattern, and actual duty cycle at speed.
If you need help with servo sizing, motion system review, gear ratio decisions, or full machine concept development, use the support path below.
These pages work together when validating gear ratio, servo torque, conveyor speed, and motion-system assumptions.
Submit your application details for motion sizing, torque review, gear ratio questions, or general servo application help.