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Torque Equation:
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The torque equation for coreless brush motors calculates the torque produced by the motor based on its power and rotational speed. It's a fundamental relationship in motor performance analysis.
The calculator uses the torque equation:
Where:
Explanation: The constant 9550 comes from unit conversions (1 kW = 1000 W, 1 RPM = 2π/60 rad/s). The equation shows that torque is inversely proportional to speed for a given power.
Details: Torque is a crucial parameter in motor selection and application design. It determines the motor's ability to perform work and overcome load resistance. Understanding torque helps in proper motor sizing for specific applications.
Tips: Enter power in kW and speed in RPM. Both values must be positive numbers. For accurate results, use the motor's rated power and speed values from its specifications.
Q1: Why use 9550 in the formula?
A: The constant 9550 comes from unit conversion: (60 sec/min × 1000 W/kW) / (2π rad/rev) ≈ 9549.3, typically rounded to 9550 for convenience.
Q2: What's typical torque range for coreless brush motors?
A: Coreless brush motors typically produce torque from 0.1 mNm to several Nm, depending on size and design.
Q3: How does torque relate to motor performance?
A: Torque determines the motor's ability to accelerate loads and overcome resistance. Higher torque means better performance under load.
Q4: What affects torque in coreless brush motors?
A: Torque depends on magnetic field strength, number of windings, current, and motor design. Coreless designs typically offer lower inertia and faster response.
Q5: Can this formula be used for other motor types?
A: While the basic relationship holds for all motors, specific performance characteristics vary by motor type (brushless, stepper, etc.).