S-98940A305 1/2"-10 x 18" 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 harsh industrial environments.
• Consistent and precise linear motion control with a travel distance of 0.1" per turn and an accuracy of ±0.009" per foot, ensuring reliable positioning in automated systems.
• High load-bearing capacity and durability from a tensile strength of 125,000 psi and Brinell 271 hardness, reducing the risk of failure under heavy loads.
• Smooth and reliable engagement with Class 2C thread fit and single-start Acme threading, minimizing backlash for efficient power transmission.
• Versatile right-hand, fully threaded design for easy integration into a wide range of machinery and motion control assemblies.
• Compliance with environmental standards as RoHS 3 compliant, ensuring safe use in regulated industries.
• Optimized for demanding applications with a robust 18" length, providing extended reach without sacrificing precision or strength.

Professional Applications & Engineering Value

This precision ACME lead screw is engineered to solve critical challenges in industrial automation and linear motion systems. The hardened 4140 alloy steel with a black-oxide surface treatment resists wear and corrosion, making it ideal for high-cycle applications like CNC machinery, 3D printers, and material handling equipment. Its 1/2"-10 ACME thread and Class 2C fit ensure minimal backlash and smooth operation, while the fully threaded, right-hand design allows for consistent force transmission. With a travel distance of 0.1" per turn and tight accuracy, it enhances positioning reliability, reducing downtime and maintenance costs in precision engineering setups.

Specification Summary & Compliance

This lead screw adheres to Class 2C thread fit standards for Acme threading, ensuring dimensional accuracy and compatibility with standard nuts. It features a travel distance per turn of 0.1" with an accuracy of ±0.009" per foot, and is manufactured from hardened Black-Oxide 4140 Alloy Steel for high tensile strength and durability. The product is RoHS 3 (2015/863/EU) compliant, meeting environmental regulations for industrial components.