1. What is Lead Screw Speed?

Lead screw speed refers to the linear velocity of a nut moving along a lead screw, calculated by multiplying the rotational speed (RPM) by the lead of the screw. It determines how fast a linear motion system can move.

2. How Does the Calculator Work?

The calculator uses the lead screw speed formula:

Where:

• \( RPM \) — Rotations per minute of the lead screw
• \( Lead \) — Linear travel per revolution (mm)
• \( Speed \) — Linear speed (mm/min)

Explanation: The formula calculates the linear speed by multiplying the rotational speed by the distance traveled per revolution.

3. Importance of Speed Calculation

Details: Accurate speed calculation is crucial for determining machine performance, optimizing production rates, and ensuring proper operation of linear motion systems in various applications.

4. Using the Calculator

Tips: Enter RPM (rotations per minute) and lead (mm per revolution). All values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between lead and pitch?
A: Lead is the distance the nut moves in one revolution, while pitch is the distance between threads. For single-start screws, lead equals pitch.

Q2: How does multi-start thread affect speed?
A: Multi-start threads have a lead that is multiple times the pitch, resulting in higher linear speed for the same RPM.

Q3: What factors affect maximum achievable speed?
A: Critical speed (whipping), motor torque, system inertia, and heat generation can all limit maximum achievable speed.

Q4: How do I convert mm/min to other units?
A: To convert to mm/sec, divide by 60. To convert to m/min, divide by 1000. To convert to inches/min, divide by 25.4.

Q5: When is this calculation most important?
A: This calculation is essential in CNC machines, 3D printers, linear actuators, and any application requiring precise linear motion control.