S-98935A529 1 1/4"-5 x 3 ft. ASTM A108 Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• High Load Capacity: Grade 2 carbon steel construction provides a robust 53,000 psi tensile strength, ensuring reliable performance under heavy industrial loads.
• Precise Linear Motion: With a 0.2" travel per turn, this lead screw delivers accurate and predictable movement for automation and positioning systems.
• Superior Thread Engagement: The Class 2G thread fit offers optimal clearance and smooth operation, reducing wear and maintenance needs.
• Left-Hand Threading for Specialized Applications: Enables unique mechanical setups where reverse motion is required, enhancing design flexibility.
• Full-Length Threading: Being fully threaded along the entire 3 ft. length allows for continuous adjustment and versatile mounting options.
• Compliance with Industry Standards: Meets ASTM A108 specifications, ensuring material consistency and mechanical properties for engineering reliability.
• Environmental and Safety Compliance: RoHS 3 and REACH compliant, making it safe for use in regulated industries and supporting global supply chain requirements.

Professional Applications & Engineering Value

This 1 1/4"-5 ACME left-hand thread lead screw is engineered to address critical needs in industrial automation, machinery, and motion control systems. The Grade 2 carbon steel material, combined with a Rockwell B61 hardness, provides excellent durability and resistance to deformation under continuous use. The single-start ACME thread design ensures efficient power transmission with minimal backlash, making it ideal for precise linear actuation in CNC equipment, conveyor systems, and lifting mechanisms. Its left-hand thread direction is particularly valuable in applications requiring counter-rotational stability or paired with right-hand components for synchronized movement. By offering a 1:1 speed ratio and consistent 0.2" travel per turn, it simplifies motion control calculations and enhances operational reliability in demanding environments.

Specification Summary & Compliance

This lead screw features a 1 1/4"-5 ACME thread with Class 2G thread fit for standard industrial tolerance, ensuring compatibility with matching nuts. It is manufactured in accordance with ASTM A108 standards for material properties and dimensional accuracy. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and supporting sustainable manufacturing practices.