BALL SPLINE

The HIWIN ball spline, also known as a ball spline shaft, is an anti-rotation shaft guide consisting mainly of a nut filled with steel balls and a shaft with several longitudinal grooves arranged in pairs. The steel balls roll in the tracks between the nut and shaft in a closed circuit and allow the nut to move along the shaft with low friction and high precision. The angular contact between the steel balls and the track in the nut and shaft enables radial loads and torques to be absorbed.

Ballscrew splines from the FB series combine the characteristics of ballscrews and anti-rotation shaft guides in a common shaft to offer maximum freedom of movement in a compact ball screw spline. As both the ballscrew nut and the ball spline nut can be connected to their own servo motor, complex motion sequences consisting of pure linear movement, pure rotation as well as overlapping linear movement and rotational movement are possible. An ideal solution for applications where lifting and rotating movements are required, such as Pick&Place, tool changers and many other applications.