S-98940A425 3/8"-12 x 6 ft. Fast-Travel Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Enhanced durability and corrosion resistance with Black-Oxide coated 4140 alloy steel, extending service life in harsh industrial environments
• Precision motion control with ±0.009" per foot accuracy, ensuring reliable positioning for automated systems
• Fast-travel efficiency with 0.167" travel per turn and 2:1 speed ratio, enabling rapid linear movement in high-speed applications
• High load capacity from 125,000 psi tensile strength and Brinell 271 hardness, supporting demanding mechanical operations
• Smooth, reliable engagement with Class 2C thread fit and two thread starts, reducing backlash and improving operational stability
• Versatile left-hand threading for specialized motion control setups requiring reverse-direction drive
• Environmental compliance assurance with RoHS 3 adherence, meeting global regulatory standards for safe use

Professional Applications & Engineering Value

This 3/8-12 ACME left-hand lead screw is engineered to address critical challenges in precision motion control systems, such as CNC machinery, automated positioning tables, and material handling equipment. The Black-Oxide 4140 alloy steel construction, combined with hardening treatment, provides exceptional wear resistance and longevity, minimizing downtime in high-cycle operations. With its fully threaded ACME profile and Class 2C thread fit, it ensures smooth, low-friction movement and precise repeatability, essential for applications requiring fast-travel and accurate linear motion. The left-hand thread direction and 2:1 speed ratio offer design flexibility for complex mechanical assemblies, making it a reliable component in industrial automation and robotics where consistent performance under load is paramount.

Specification Summary & Compliance

This lead screw adheres to Class 2C thread fit standards, ensuring precise dimensional tolerances for reliable nut engagement. It features a 3/8"-12 ACME thread with left-hand direction and is manufactured from hardened 4140 alloy steel with a Black-Oxide finish. The product is fully compliant with RoHS 3 (2015/863/EU) regulations, confirming its suitability for use in environmentally conscious industrial applications without hazardous substances.