1/2" ACME Precision Lead Screw - 5 Start, 10 TPI (2 Turns Per Inch)

Product Overview

This high-precision 1/2" ACME lead screw is engineered to deliver exceptional performance as the primary mechanical component for CNC machine axis movement. Featuring a 5-start, 10 TPI configuration that translates to 2 turns per inch, this lead screw provides the precise, reliable motion control essential for professional CNC applications.

Key Specifications

• Diameter: 1/2" outside diameter
• Thread Type: ACME precision (square threads)
• Starts: 5 start configuration
• Threads Per Inch: 10 TPI
• Lead: 2 turns per inch
• Maximum Continuous Length: 72"
• Material: Precision-machined steel

Enhanced Performance with Anti-Backlash Nut

When paired with our matching anti-backlash nut (same specifications), this lead screw combination delivers superior precision by virtually eliminating backlash in your CNC system. The anti-backlash nut, also known as a wear compensating nut, automatically adjusts for wear over time, ensuring consistent accuracy throughout the machine's operational life.

Custom Cut-to-Order

Pricing: Per inch (quantity = total inches needed) Processing Time: Additional 1-2 business days for cutting

Ordering Instructions

To order your desired length, simply set the quantity equal to the total inches needed. For example, for a 24-inch lead screw, change the quantity to "24" and add to cart.

Woodsmith 2.0 CNC Machine Plans - Special Package Available For builders following the Woodsmith 2.0 CNC machine plans, we offer a special pricing option that includes all three required lengths: 59-1⁄4", 37-3⁄4", and 17". This package ensures you have all the lead screws needed for your complete build at a discounted rate.

Need Help with Specifications? Use our website chat feature to speak directly with the owner of BuildYourCNC for personalized assistance with determining the ideal cut length for your specific application.

Important Installation Notes

Due to manufacturing tolerances, standard 1/2" ID bearings may require slight adjustment to fit properly on the 1/2" lead screw. If needed, you can:

1. Heat Expansion Method: Gently heat the bearing to expand the inner diameter for easier installation
2. Lathe Reduction: Use a lathe to slightly reduce the lead screw diameter
3. Manual Reduction: Carefully reduce the lead screw diameter using sandpaper or a file

Note: Our lead screws and anti-backlash nuts are perfectly mated for optimal performance.

Why Choose ACME Precision?

CNC machines demand precise, repeatable movement. Backlash in linear motion systems can compromise accuracy and surface finish quality. This ACME precision lead screw and anti-backlash nut combination significantly reduces backlash, ensuring your CNC machine operates with professional-grade precision and reliability.

Perfect for: CNC mills, routers, lathes, 3D printers, and other precision machinery requiring accurate linear motion control.