S-6641K3 1/2"-4 x 2 ft. Fast-Travel Corrosion-Resistant Ball Screws and Nuts

Key Features & Benefits at a Glance

• Enhanced positioning accuracy with ±0.004" per foot tolerance for reliable, repeatable motion control in demanding applications.
• Fast linear travel of 0.5 inches per revolution from the 2-start thread design, increasing equipment throughput and cycle speed.
• Superior strength and durability from 17-4 PH Stainless Steel, offering 145,000 psi tensile strength and Rockwell C38 hardness for long service life.
• Excellent corrosion resistance for reliable performance in harsh environments, combined with a wide operating temperature range from -65°F to 300°F.
• High-efficiency rolled thread fabrication ensures smoother operation, reduced friction, and improved load distribution compared to cut threads.
• Right-hand, fully-threaded design provides consistent engagement and force transmission along the entire 2-foot length for stable operation.
• Compliance with RoHS 3 standards ensures environmental responsibility and suitability for regulated industrial markets.

Professional Applications & Engineering Value

This 1/2"-4 ball screw is engineered for precision motion control systems where accuracy, speed, and reliability are critical. Manufactured from 17-4 PH Stainless Steel, it resists corrosion in challenging environments like CNC machinery, automated assembly lines, and aerospace actuators. The rolled thread fabrication and 2-start thread design deliver fast 0.5" travel per turn with minimal backlash, solving common issues of slow positioning and wear in high-cycle applications. Its high tensile strength and broad temperature tolerance ensure consistent performance under heavy loads and thermal variation, making it ideal for industrial automation, packaging equipment, and precision testing instruments requiring fast-travel and long-term durability.

Specification Summary & Compliance

This ball screw features a 1/2"-4 thread size with a 0.4" root diameter, 0.5" travel per turn, and ±0.004" per foot accuracy. It is fully threaded with a right-hand thread direction and meets industry standards for rolled thread fabrication. The component complies with RoHS 3 (2015/863/EU) requirements, ensuring it is free of hazardous substances for use in global industrial markets.