1. What is the Screw Torque to Linear Force Formula?

The screw torque to linear force formula calculates the linear force generated from applied torque in screw mechanisms. It's essential for designing and analyzing mechanical systems that convert rotational motion to linear motion.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( F \) — Linear force (N)
• \( T \) — Applied torque (Nm)
• \( \eta \) — Efficiency (dimensionless, 0-1)
• \( L \) — Lead of the screw (m)

Explanation: The formula calculates how much linear force is produced based on the input torque, screw efficiency, and the screw's lead distance.

3. Importance of Linear Force Calculation

Details: Accurate force calculation is crucial for mechanical design, ensuring proper sizing of components, predicting system performance, and preventing mechanical failure.

4. Using the Calculator

Tips: Enter torque in Nm, efficiency as a decimal between 0-1, and lead in meters. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is screw lead?
A: Screw lead is the linear distance the screw travels in one complete revolution (360° rotation).

Q2: How is efficiency determined?
A: Efficiency depends on the screw material, thread design, lubrication, and other factors. Typical values range from 0.3 to 0.9.

Q3: Can this formula be used for ball screws?
A: Yes, ball screws typically have higher efficiency (0.8-0.95) compared to traditional lead screws.

Q4: What if I need to calculate torque from force?
A: The formula can be rearranged: \( T = \frac{F \times L}{2\pi \times \eta} \)

Q5: Are there limitations to this calculation?
A: This is an idealized calculation that doesn't account for friction variations, wear, or dynamic effects in real-world applications.