S-99030A473 3/4"-8 x 3 ft. Fast-Travel Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Enhanced Motion Control Precision with ±0.009" per foot travel accuracy for reliable positioning in automated systems.
• Fast-Travel Efficiency due to 0.25" travel per turn and 2:1 speed ratio, reducing cycle times in high-speed applications.
• Superior Load-Bearing Capability from 64,000 psi tensile strength and Brinell 126 hardness, ensuring durability under heavy loads.
• Optimized Thread Engagement with Class 2C thread fit for smooth, low-friction operation and extended service life.
• Left-Hand Threading Advantage enabling unique mechanical setups and reverse motion control where standard threads are unsuitable.
• Robust Material Construction using 1018 carbon steel for excellent machinability and resistance to wear in industrial environments.
• Consistent Performance with fully threaded 3-foot length and two thread starts, providing uniform force distribution and reliable operation.

Professional Applications & Engineering Value

This left-hand Acme lead screw is engineered to address critical challenges in precision motion control systems, particularly where reverse threading or specific directional movements are required. Manufactured from 1018 carbon steel, it offers an optimal balance of strength and machinability, resisting deformation under continuous operational stress. The Class 2C thread fit ensures minimal backlash and smooth engagement with mating nuts, crucial for applications like CNC machinery, automated positioning tables, and material handling equipment. With its 2:1 speed ratio and 0.25" travel per turn, it enables rapid linear motion while maintaining ±0.009" per foot accuracy, reducing positional errors in high-demand industrial settings. This makes it ideal for environments requiring fast-travel performance without compromising on precision or durability.

Specification Summary & Compliance

This 3/4"-8 Acme lead screw adheres to Class 2C thread fit standards, ensuring precise tolerances for reliable nut engagement. It features a fully threaded 3-foot length with left-hand Acme threading and two thread starts, delivering consistent 0.25" travel per turn. The component meets general industrial specifications for dimensional accuracy and is manufactured from 1018 carbon steel, providing a tensile strength of 64,000 psi and Brinell 126 hardness. While designed for robust performance in motion control applications, users should verify compliance with specific industry standards such as ASME/ANSI for threaded components based on their operational requirements.