S-98940A627 1/2"-10 x 3 ft. Fast-Travel Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Enhanced precision movement with ±0.009" per foot accuracy for reliable, repeatable positioning in automated systems.
• Fast travel capability due to the 5:1 speed ratio and 5 thread starts, enabling rapid linear motion and improved cycle times.
• Superior strength and durability from hardened 4140 alloy steel, offering a high 125,000 psi tensile strength for demanding industrial applications.
• Excellent wear resistance and corrosion protection provided by the black-oxide surface treatment, extending service life in harsh environments.
• Smooth and efficient power transmission with the Acme thread form and Class 2C fit, ensuring reliable engagement and reduced backlash.
• High load-bearing capacity supported by a Brinell hardness of 271, making it suitable for heavy-duty mechanical drives.
• Regulatory compliance and environmental safety as a RoHS 3 compliant component, meeting international standards for restricted substances.

Professional Applications & Engineering Value

This high-precision Acme lead screw is engineered to solve critical challenges in fast-travel and precision motion control systems. The Black-Oxide 4140 alloy steel construction, combined with hardening, provides exceptional resistance to wear and fatigue, which is vital for high-cycle automation equipment, CNC machinery, and material handling systems. The fully threaded design with a 0.5" travel distance per turn and 5 thread starts enables rapid linear actuation, significantly reducing positioning time while maintaining the ±0.009" per ft. accuracy. This makes it an ideal component for applications requiring both speed and precision, such as in packaging, assembly automation, and precision positioning tables, where reliability and minimal maintenance are paramount.

Specification Summary & Compliance

This 1/2"-10 Acme lead screw features a Class 2C thread fit per standard Acme threading specifications, ensuring proper clearance and functional performance. The manufacturing adheres to precision standards with a guaranteed travel accuracy of ±0.009" per foot. It is fully compliant with RoHS 3 (2015/863/EU) regulations, confirming its suitability for use in markets with strict environmental and safety requirements. The component's material and heat treatment processes are aligned with industrial norms for high-strength, durable motion control components.