1. What is Ball Screw Speed?

Ball screw speed refers to the linear velocity of the nut along the screw axis, calculated based on the rotational speed of the screw and its lead. It's a critical parameter in mechanical systems using ball screws for motion control.

2. How Does the Calculator Work?

The calculator uses the ball screw speed formula:

Where:

• \( v \) — Linear speed (m/s)
• \( N \) — Rotational speed (rpm)
• \( L \) — Lead of the ball screw (m)

Explanation: The formula converts rotational motion to linear motion by multiplying the rotational speed by the lead (distance traveled per revolution), then dividing by 60 to convert from minutes to seconds.

3. Importance of Ball Screw Speed Calculation

Details: Accurate speed calculation is essential for proper system design, ensuring optimal performance, preventing excessive wear, and maintaining positioning accuracy in precision mechanical systems.

4. Using the Calculator

Tips: Enter rotational speed in RPM and lead in meters. Both values must be positive numbers. The calculator will compute the linear speed in meters per second.

5. Frequently Asked Questions (FAQ)

Q1: What is ball screw lead?
A: Lead is the linear distance the nut travels along the screw axis during one complete revolution of the screw.

Q2: How does lead differ from pitch?
A: For single-start screws, lead equals pitch. For multi-start screws, lead equals pitch multiplied by the number of starts.

Q3: What are typical ball screw speed ranges?
A: Speeds typically range from 0.1 to 2.0 m/s depending on screw diameter, lead, and application requirements.

Q4: What factors limit maximum ball screw speed?
A: Critical speed (screw whipping), DN value (diameter × rpm), temperature rise, and lubrication are common limiting factors.

Q5: How can I increase ball screw speed?
A: Increase rotational speed, use a larger lead, or employ a multi-start screw design to achieve higher linear speeds.