S-98940A424 1 1/4"-5 x 6 ft. Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional Precision: Achieve reliable positioning with ±0.009" per foot travel accuracy, minimizing operational errors in critical applications.
• Superior Durability: Crafted from hardened 4140 alloy steel with a Black-Oxide finish, offering excellent wear resistance and corrosion protection for long service life.
• High Load Capacity: With a tensile strength of 125,000 psi and Brinell 271 hardness, this screw handles heavy loads and high-stress environments without deformation.
• Optimized Motion Control: Features a 0.2" travel distance per turn and a single thread start for smooth, predictable linear motion in automated systems.
• Reliable Thread Engagement: Class 2C thread fit ensures consistent performance and ease of assembly with matching nuts, reducing maintenance needs.
• Left-Hand Thread Versatility: Ideal for specialized applications requiring reverse motion or unique mechanical configurations, enhancing design flexibility.
• Environmental Compliance: RoHS 3 compliant, meeting strict regulatory standards for use in various industries without hazardous substances.

Professional Applications & Engineering Value

This 1 1/4"-5 ACME left-hand thread lead screw is engineered to solve common industrial challenges, such as precise positioning in CNC machinery, automated assembly lines, and heavy-duty lifting systems. The Black-Oxide 4140 alloy steel construction, combined with hardening, provides exceptional resistance to wear and environmental factors, reducing downtime and maintenance costs. The ACME thread type and Class 2C fit deliver reliable, low-friction motion control, while the left-hand threading allows for unique mechanical designs that require counter-directional movement. Fully threaded and 6 ft. in length, it supports long-stroke applications in industries like packaging, robotics, and material handling, ensuring consistent performance under high loads with its 125,000 psi tensile strength.

Specification Summary & Compliance

This lead screw adheres to Class 2C thread fit standards, ensuring precise dimensional tolerances for reliable compatibility with nuts. It features a 1 1/4"-5 ACME left-hand thread with full threading, a travel distance of 0.2" per turn, and an accuracy of ±0.009" per foot. Manufactured from hardened 4140 alloy steel with a Brinell hardness of 271, it meets industry specifications for strength and durability. The product is RoHS 3 (2015/863/EU) compliant, confirming its adherence to environmental regulations for safe use in global markets.