Ballscrews consist of a screw spindle and a nut integrated with rolling elements that cycle through a return mechanism. Ballscrews convert rotary motion into linear motion, and are most commonly used in industrial machinery and precision machines. Hiwin Corporation provides a wide range of ballscrew configurations to satisfy your special application requirements. Hiwin has the capability of producing JIS C0 class ground ballscrews, and DIN 5 class (up to 23 microns) for precision rolled ballscrews. Ballscrew O.D. ranging from 4mm to 120mm, and with Dm-N values up to 220,000.
Hiwin precision ballscrews are manufactured through a grinding process of the screw spindle. Precision ground ballscrews offer high positioning accuracy, excellent repeatability, smooth movement, and a long service life. These highly efficient ballscrews are the ideal solution for a wide range of applications.
The major differences between a rolled and ground ballscrew are the manufacturing process, lead error definition, and geometrical tolerances. Hiwin rolled ballscrews are produced through a rolling process of the screw spindle, as opposed to a grinding process. Rolled ballscrews offer smooth movement and low friction, making them a cost-effective option that can be supplied quickly from stock, reducing production costs.
The Super S series uses a patented design return system that can absorb ball impact noise which greatly reduces the noise intensity and allows the ballscrew to sustain peak performance in rigorous environments. The modified return system improves the strength of the return structure which increases the Dm-N value and reduces the ball nut diameter by 18%-32%.
The Super T series circulation path has the elements leaving the ball track tangential to the PCD and coordinating with the lead angle of the ballscrew shafting. This optimal design not only reduces the noise level but also vibrations leading to smoother rotation.
Tangential circulation path improves speed and reduces noise and vibration. The nut’s diameter is 15% – 30% smaller, making it perfect for smaller spaces.
Hiwin miniature ground ballscrews are produced through a precision grinding process of the screw spindle. These compact ballscrews are ideal for smaller load and shorter stroke applications. With high efficiency, they deliver excellent positioning accuracy, repeatability, smooth movement, and a long service life, making them perfect for precision-driven applications.
Hiwin’s rotating nut features a special end cap design that allows steel balls to circulate within the nut, while incorporating an integral bearing that keeps the ballscrew shaft fixed. This innovative design reduces noise at high speeds and provides increased axial loading capacity and stiffness, making it ideal for high-performance applications.
