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Ball Spline

The HIWIN Ball Spline is an anti-rotation shaft guide that mainly consists of a nut filled with steel balls and a shaft with several longitudinal grooves arranged in pairs. The steel balls roll in the raceways between the nut and shaft in a closed circuit and enable the nut to perform a low-friction linear movement along the shaft. The angular contact between the steel balls and the raceway in the nut and shaft enables the transmission of radial forces and torque.