S-98940A607 3/8"-8 x 3 ft. Fast-Travel Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Enhanced Speed and Efficiency: Achieve rapid linear motion with a 0.5" travel per turn and a 4:1 speed ratio, significantly reducing cycle times in automated systems.
• Superior Durability and Wear Resistance: Constructed from hardened Black-Oxide 4140 Alloy Steel with a Brinell 271 hardness, ensuring a long service life under continuous operation.
• High Load-Bearing Capacity: With a 125,000 psi tensile strength, this screw reliably handles high thrust loads in demanding industrial applications.
• Precision Movement Control: Maintains tight positional accuracy with a travel distance tolerance of ±0.009" per foot for repeatable and reliable performance.
• Optimized for Fast-Travel Applications: The 4-start ACME thread design provides high lead for quick traversal, making it ideal for rapid positioning and transfer systems.
• Corrosion-Resistant Finish: The black-oxide surface treatment offers improved corrosion resistance, protecting the screw in various operational environments.
• Guaranteed Mechanical Fit: The Class 2C thread fit ensures consistent, reliable engagement with matching nuts, minimizing backlash and ensuring smooth operation.

Professional Applications & Engineering Value

This 3/8"-8 ACME lead screw is engineered to solve core challenges in high-speed automation and precision machinery. The combination of a hardened 4140 alloy steel core and a 4-start thread delivers exceptional fast-travel capability, directly addressing the need for rapid linear motion without sacrificing strength or accuracy. The fully threaded, right-hand design ensures consistent force transmission, making it a robust mechanical drive screw for CNC positioning tables, 3D printers, and material handling equipment. Its high tensile strength and precise travel distance per turn tolerance ensure reliable performance under dynamic loads, reducing maintenance downtime and increasing overall system productivity in industrial settings.

Specification Summary & Compliance

This component adheres to the Class 2C thread fit standard for ACME threads, ensuring dimensional accuracy and compatibility. The manufacturing process includes heat treatment for optimal hardness and a black-oxide finish for enhanced durability. This product is confirmed to be RoHS 3 (2015/863/EU) Compliant, meeting stringent environmental and safety regulations for use in various global markets.