S-98940A409 5/8"-8 x 6 ft. Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional Precision: Achieve reliable motion control with ±0.009" per foot accuracy, ensuring consistent performance in automated systems.
• Superior Strength & Durability: Made from hardened 4140 alloy steel with 125,000 psi tensile strength and Brinell 271 hardness for long-lasting operation under heavy loads.
• Corrosion-Resistant Finish: Black-oxide coating provides enhanced protection against rust and wear in demanding industrial environments.
• Optimized Thread Design: Class 2C thread fit and left-hand Acme threading offer smooth, backlash-resistant engagement for precise linear motion.
• Full-Length Threading: Fully threaded 6-foot length allows for flexible installation and continuous travel in various assembly setups.
• Regulatory Compliance: RoHS 3 (2015/863/EU) compliant, meeting environmental standards for safe use in global markets.
• High Load Capacity: Designed to handle significant mechanical stress with a 1:1 speed ratio, ideal for power transmission applications.

Professional Applications & Engineering Value

This 5/8-8 left hand Acme lead screw is engineered to address critical challenges in precision motion control systems, such as CNC machinery, linear actuators, and automated positioning equipment. The black-oxide 4140 alloy steel construction, combined with hardening treatment, ensures resistance to deformation and wear, reducing maintenance downtime. The Class 2C thread fit and left-hand Acme threading provide reliable, low-friction movement, minimizing backlash for accurate repeatability in industrial settings. Its fully threaded design supports versatile mounting, while the inch system measurement simplifies integration with existing machinery, making it a robust solution for high-stress applications requiring consistent ±0.009" per ft. accuracy.

Specification Summary & Compliance

This lead screw adheres to Class 2C thread fit standards for precise engagement, with a travel distance of 0.125" per turn and left-hand Acme thread type. Manufactured from hardened 4140 alloy steel, it meets tensile strength of 125,000 psi and Brinell 271 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) regulations, ensuring environmental safety for industrial use.