The THK Ball Screw Rotary Nut Ball Screw Model NS V SERIES represents a sophisticated evolution in linear motion technology, engineered specifically for applications requiring high-speed rotation and precise axial movement. This series features a unique rotary nut design where the nut rotates while the screw remains stationary axially, enabling exceptional rotational speeds up to 10,000 rpm while maintaining smooth, accurate linear travel. Constructed with precision-ground threads and high-carbon chromium bearing steel, the NS V SERIES incorporates THK’s proprietary ball circulation system that minimizes vibration and noise even under demanding operational conditions. Each component undergoes rigorous heat treatment and surface finishing processes to ensure durability, with preloaded ball nuts eliminating backlash for consistent positioning accuracy within microns.

Key technical features include an optimized ball groove profile that enhances load distribution, extending service life under heavy loads up to 50 kN dynamic capacity. The integrated seal structure effectively excludes contaminants while retaining lubrication, making these ball screws suitable for harsh environments. With cooling channels available as an option, the NS V SERIES can sustain high-speed operations without thermal expansion compromising precision. Performance advantages are particularly evident in reduced energy consumption due to lower torque requirements and maintenance-free operation intervals exceeding 20,000 hours. The compact flange-mounted nut design simplifies integration into existing systems while providing higher stiffness than conventional designs.

Typical applications span multiple industries where reliability and speed are critical. In industrial machinery, these ball screws drive high-frequency pick-and-place robots and CNC machining centers requiring rapid tool changes. Automotive manufacturing lines utilize them in electric power steering systems for precise torque control and in automated assembly stations for engine component positioning. The precision equipment sector employs NS V SERIES ball screws in semiconductor wafer handling robots, medical diagnostic instrument stages, and optical alignment systems where sub-micron repeatability is mandatory. Their ability to maintain performance under continuous duty cycles makes them ideal for packaging machinery, printing presses, and aerospace testing equipment requiring synchronized rotary-linear motion.