Ball Spline

Ball spline is a mechanical transmission component that combines linear motion and torque transmission functions. It consists mainly of a splined shaft and a spline nut with circulating ball elements. Its key feature is the ability to transmit torque efficiently even during axial movement, thanks to the rolling motion of the balls between the grooves, which greatly reduces friction and wear. This enables high precision, high rigidity, and long service life. Compared to traditional sliding splines, ball splines offer smoother operation and are ideal for applications that require both rotation and linear movement, such as automation equipment, robotic joints, machine tool slide units, and packaging machinery. They also effectively absorb eccentric loads and impact forces, making them an ideal solution for high-speed and high-load conditions.