S-99030A518 1"-4 x 6 ft. Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional positioning accuracy with ±0.009" per foot travel tolerance for reliable, repeatable linear motion in automated systems.
• Superior strength and durability from 1018 Carbon Steel construction, providing a high 64,000 psi tensile strength for demanding industrial loads.
• Optimized for reverse-motion applications with its left-hand Acme thread, offering design flexibility where standard right-hand threads are unsuitable.
• Consistent and predictable linear travel of 0.25 inches per single revolution, ensuring precise speed and position control.
• Robust wear resistance with a Brinell 126 hardness, extending service life and reducing maintenance frequency in high-cycle operations.
• Broad industrial compliance meeting RoHS 3 and REACH environmental standards, ensuring global regulatory acceptance for your projects.
• Reliable thread engagement with a Class 2C thread fit, designed for applications where quick assembly and disassembly are required without binding.

Professional Applications & Engineering Value

This 1"-4 Left Hand Acme Lead Screw is engineered to solve critical challenges in precision linear motion systems. The 1018 Carbon Steel construction and fully threaded design provide the necessary tensile strength and rigidity for applications like clamping mechanisms, lifting equipment, and automated positioning tables where reverse-thread operation is essential. The Class 2C thread fit ensures smooth operation with minimal backlash, which is vital for maintaining accuracy in repetitive cycles. Its left-hand thread direction is specifically valuable in assemblies requiring opposing motion to standard components, preventing unintended loosening and enhancing operational safety. This makes it an indispensable component in industrial machinery, packaging equipment, and CNC retrofits demanding reliable, long-lasting performance.

Specification Summary & Compliance

This precision Acme lead screw features a 1"-4 thread size with a Class 2C thread fit per standard Acme threading specifications, ensuring dimensional consistency and interchangeability. It delivers a travel distance of 0.25" per turn with an accuracy of ±0.009" per foot. The component is manufactured from 1018 Carbon Steel and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to strict environmental and safety standards for industrial use worldwide.