S-98940A118 1"-4 x 6 ft. Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 125,000 psi tensile strength for reliable performance in high-stress industrial applications
• Superior wear resistance and corrosion protection through hardened Black-Oxide 4140 Alloy Steel construction with Brinell 271 hardness
• Precision motion control with ±0.009" per foot accuracy ensuring consistent positioning and repeatability
• Optimized linear movement delivering 0.25" travel distance per turn for efficient power transmission
• Enhanced thread engagement with Class 2C thread fit providing reliable mating with ACME nuts
• Full environmental compliance meeting RoHS 3 standards for use in regulated industrial settings
• Complete thread coverage with fully threaded 6-foot length offering maximum flexibility in installation

Professional Applications & Engineering Value

This precision ACME lead screw delivers exceptional value in demanding motion control systems where accuracy and durability are paramount. The Black-Oxide 4140 Alloy Steel construction, combined with hardening treatment, provides superior resistance to wear and corrosion in industrial environments. The ACME thread form with Class 2C thread fit ensures reliable power transmission with minimal backlash, making it ideal for CNC machinery, automated positioning systems, and material handling equipment. With its ±0.009" per foot accuracy and consistent 0.25" travel per turn, this lead screw solves critical engineering challenges in applications requiring precise linear motion, repeatable positioning, and long-term reliability under continuous operation.

Specification Summary & Compliance

This 1"-4 ACME lead screw features Class 2C thread fit tolerances according to inch system standards, ensuring proper engagement with matching ACME nuts. The manufacturing process includes hardening treatment to achieve Brinell 271 hardness and 125,000 psi tensile strength. The product is fully RoHS 3 (2015/863/EU) compliant, meeting international environmental regulations for restricted substances. With right-hand threading, single start design, and 1:1 speed ratio, this component adheres to industrial standards for precision motion control applications.