S-98940A757 2"-4 x 3 ft. Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional travel accuracy of ±0.009" per foot ensures reliable positioning and repeatability in automated systems.
• High-strength 4140 alloy steel construction with hardening treatment delivers superior durability and resistance to wear in demanding industrial environments.
• Black-oxide surface coating provides enhanced corrosion resistance, extending service life and reducing maintenance needs.
• Left-hand ACME threading with Class 2C fit offers precise, backlash-resistant motion control for specialized applications requiring reverse-direction operation.
• Consistent 0.25" travel per turn enables predictable linear movement, simplifying system design and calibration.
• Impressive tensile strength of 125,000 psi and Brinell 271 hardness ensure the screw withstands high loads without deformation.
• RoHS 3 compliance guarantees environmental safety and meets international regulatory standards for industrial components.

Professional Applications & Engineering Value

This precision ACME lead screw is engineered to address critical challenges in linear motion control systems, where accuracy, durability, and reliability are paramount. The hardened 4140 alloy steel core, combined with a black-oxide coating, resists corrosion and mechanical wear, making it ideal for harsh industrial settings like CNC machinery, automated assembly lines, and precision positioning equipment. The left-hand ACME thread with Class 2C fit provides smooth, low-friction movement and minimizes backlash, ensuring consistent performance in applications requiring reverse-thread engagement. With a travel accuracy of ±0.009" per foot, it eliminates positioning errors, enhancing operational efficiency and reducing downtime in demanding industrial applications.

Specification Summary & Compliance

This lead screw adheres to ACME thread standards with a Class 2C thread fit for precise tolerances and smooth operation. It features a fully threaded, left-hand design, a travel distance of 0.25" per turn, and a length of 3 feet. Manufactured from hardened 4140 alloy steel, it meets RoHS 3 (2015/863/EU) compliance, ensuring it is free from hazardous substances and suitable for global industrial use.