S-98940A657 2"-4 x 3 ft. Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Superior wear resistance and corrosion protection thanks to the hardened Black-Oxide 4140 Alloy Steel construction, extending service life in demanding industrial environments.
• Exceptional positional accuracy with a travel distance tolerance of ±0.009" per foot, ensuring reliable and repeatable linear motion in precision applications.
• High load-bearing capacity from a 125,000 psi tensile strength and Brinell 271 hardness, providing the durability needed for heavy-duty use.
• Consistent and predictable movement with a 0.25" travel per turn and a 1:1 speed ratio, offering straightforward control and integration.
• Reliable thread engagement and reduced backlash with a Class 2C thread fit on the 2"-4 ACME thread, promoting smooth operation and longevity.
• Versatile right-hand, fully threaded design for broad compatibility with standard industrial nuts and components.
• Compliance with environmental regulations as it is RoHS 3 (2015/863/EU) Compliant, meeting modern manufacturing standards.

Professional Applications & Engineering Value

This precision ACME lead screw is engineered to solve critical challenges in industrial automation and motion control systems. The hardened 4140 alloy steel with a black-oxide finish provides excellent resistance to wear and environmental corrosion, making it ideal for CNC machinery, lifting equipment, and precision positioning tables where durability is paramount. The ACME thread type and Class 2C thread fit ensure efficient power transmission with minimal backlash, which is crucial for maintaining accuracy in repetitive cycles. With its ±0.009" per ft. accuracy and consistent 0.25" travel per turn, it delivers reliable performance in applications requiring exact linear movement, reducing downtime and maintenance costs for engineers and OEMs.

Specification Summary & Compliance

This lead screw adheres to inch system measurements and features a Class 2C thread fit for the 2"-4 ACME thread, ensuring dimensional precision and compatibility. It is manufactured from hardened 4140 alloy steel and is fully compliant with RoHS 3 (2015/863/EU) regulations, confirming its suitability for use in regulated industrial and international markets.