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WHATS THE DIFFERENCE BETWEEN A HELICAL RACK AND BALL SCREW ASSEMBLY?

April 26, 2017assembly Ball helical rack screw

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WHATS THE DIFFERENCE BETWEEN A HELICAL RACK AND BALL SCREW ASSEMBLY?

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A helical rack assembly has a long linear-shaped gear that meshes with a rotating helical gear to provide linear motion. The X- and Y-axes on the CNT 900 and the Y-axis on the CNT 1000 are helical rack-driven. A ball screw assembly (as used on CNTs Z-axis assemblies) consists of a screw spindle and a nut, integrated with balls and the balls’ return mechanism. The screw rotates to convert rotary motion into linear motion, or torque to thrust, and vice versa. The X-axis on the CNT 1000 is a rotating nut ball screw assembly where the nut rotates to create linear motion, while the screw is stationary.