Shaft Power Calculator vs Shaft Torque and Stress Calculator
Two calculators for the same neighbourhood of questions. Here is what each measures, what you feed in, and where you'd reach for one over the other.
Shaft Power Calculator
Calculates the mechanical power transmitted through a rotating shaft given its torque and rotational speed. Use this when sizing motors, gearboxes, or drive shafts in mechanical systems.
- Answers
- Power (W)
- Inputs
- Torque, Angular Velocity
Shaft Torque and Stress Calculator
Determine the safe torque capacity and shear stress in a rotating shaft. Use this when designing drive shafts, axles, or couplings to ensure they won't fail under torsional load.
- Answers
- Maximum Torque Capacity (N·m)
- Inputs
- Shaft Diameter, Allowable Shear Stress, Safety Factor
At a glance
| Shaft Power Calculator | Shaft Torque and Stress Calculator | |
|---|---|---|
| Category | Mechanical | Mechanical |
| Answers | Power | Maximum Torque Capacity |
| Inputs | 2 | 3 |
| Result unit | W | N·m |
When to use each
Calculates the mechanical power transmitted through a rotating shaft given its torque and rotational speed. Use this when sizing motors, gearboxes, or drive shafts in mechanical systems.
Determine the safe torque capacity and shear stress in a rotating shaft. Use this when designing drive shafts, axles, or couplings to ensure they won't fail under torsional load.