1. What is Ball Screw Motor Torque?

Ball Screw Motor Torque is the rotational force required by a motor to overcome both the load torque (from the actual work being done) and the friction torque (from mechanical resistance in the system). It's a critical parameter in motion control systems.

2. How Does the Calculator Work?

The calculator uses the fundamental torque equation:

Where:

• Load Torque — Torque required to move the load (Nm)
• Friction Torque — Torque required to overcome system friction (Nm)

Explanation: The total torque the motor must provide is the sum of the torque needed to move the load and the torque needed to overcome friction in the system.

3. Importance of Motor Torque Calculation

Details: Proper torque calculation ensures the motor is neither undersized (leading to failure) nor oversized (leading to inefficiency and higher costs). It's essential for system design and motor selection.

4. Using the Calculator

Tips: Enter both load torque and friction torque in Newton-meters (Nm). Both values must be non-negative. The calculator will sum them to give the required motor torque.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between load torque and friction torque?
A: Load torque comes from the actual work being done (moving a mass, cutting force, etc.), while friction torque comes from mechanical resistance in bearings, seals, and other components.

Q2: How do I measure or estimate these torque values?
A: Load torque can be calculated from the load and mechanical advantage. Friction torque is often provided by component manufacturers or measured empirically.

Q3: Should I add a safety factor to the calculated torque?
A: Yes, it's common practice to multiply the calculated torque by a safety factor (typically 1.2-2.0) to account for uncertainties and variations.

Q4: Does this calculation account for acceleration torque?
A: No, this is the steady-state torque. For systems with significant acceleration, you would need to add the acceleration torque component.

Q5: What units should I use?
A: The calculator uses Newton-meters (Nm). If you have values in other units (like lb-ft), convert them to Nm first (1 lb-ft = 1.35582 Nm).