Torque Formula:
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Torque calculation for motor determines the rotational force produced by an electric motor based on its power output and angular velocity. This is essential for motor selection, performance analysis, and mechanical design applications.
The calculator uses the torque formula:
Where:
Explanation: This fundamental relationship shows that torque is directly proportional to power and inversely proportional to angular velocity.
Details: Accurate torque calculation is crucial for motor sizing, ensuring adequate starting and running torque for specific applications, and preventing motor overload or underperformance.
Tips: Enter power in watts and angular velocity in radians per second. Both values must be positive numbers greater than zero for accurate calculation.
Q1: What is the difference between torque and power?
A: Torque is the rotational force, while power is the rate at which work is done. Power = Torque × Angular Velocity.
Q2: How do I convert RPM to rad/s?
A: Multiply RPM by 2π/60. For example, 1000 RPM = 1000 × (2 × 3.14159) / 60 ≈ 104.72 rad/s.
Q3: What are typical torque values for different motor types?
A: Small DC motors: 0.01-1 N·m, Industrial motors: 10-1000 N·m, Large industrial motors: 1000+ N·m.
Q4: Why is torque important in motor selection?
A: Torque determines if a motor can overcome starting inertia and maintain operation under load conditions.
Q5: Can this formula be used for all types of motors?
A: Yes, this fundamental relationship applies to AC, DC, servo, and stepper motors, though efficiency factors may need consideration.