S-98940A020 1/2"-10 x 6 ft. Fast-Travel Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Enhanced Durability & Corrosion Resistance – Black-oxide coated 4140 alloy steel with hardening treatment provides superior wear resistance and longevity in demanding industrial environments.
• High-Precision Movement – Maintains ±0.009" per foot accuracy for travel distance, ensuring reliable and repeatable positioning in automated systems.
• Fast-Travel Efficiency – 0.5" travel per turn with 5:1 speed ratio enables rapid linear motion, reducing cycle times and increasing productivity.
• Exceptional Load Capacity – 125,000 psi tensile strength and Brinell 271 hardness withstand heavy loads and high-stress applications without deformation.
• Optimized Thread Engagement – Class 2C thread fit with 5 thread starts and fully threaded ACME design ensures smooth operation and reduced backlash.
• Versatile Right-Hand Threading – Standard right-hand ACME threads offer broad compatibility with existing industrial equipment and nut assemblies.
• Regulatory Compliance – RoHS 3 (2015/863/EU) compliant, meeting environmental standards for safe use in global markets.

Professional Applications & Engineering Value

This 1/2"-10 ACME lead screw is engineered for fast-travel precision in industrial automation, CNC machinery, and linear motion systems. The black-oxide 4140 alloy steel construction, combined with hardening, addresses common issues like wear, corrosion, and fatigue under continuous operation. With 5 thread starts and a 0.5" travel per turn, it delivers high-speed linear movement while maintaining ±0.009" accuracy, critical for applications requiring precise positioning and repeatability. The Class 2C thread fit minimizes play, enhancing stability in high-load scenarios such as packaging equipment, 3D printers, and material handling systems. Its 125,000 psi tensile strength ensures reliability in dynamic environments, reducing downtime and maintenance costs.

Specification Summary & Compliance

This lead screw adheres to inch system measurements with a Class 2C thread fit for precise ACME threading. It features a 6 ft length, fully threaded design, and right-hand thread direction. Manufactured from hardened 4140 alloy steel, it meets industry standards for dimensional accuracy and performance. Compliance includes RoHS 3 (2015/863/EU), ensuring environmental safety and suitability for international industrial applications.