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One Axis Linear and Rotary Motion Positioning

This Ball Spline video is presented to clarify the difference between Ball Screw Splines and Ball Splines. The Ball Spline nut, as you will see in the video, travels along the shaft using its straight grooves as the guides for the rolling elements. Not seen in the video are Ball Screw Splines that have some nuts that travel using the straight grooves as rolling element guides and some nuts that spiral on the shaft. For more information on Ball Screw Splines, go to https://www.nbcorporation.com/shop/ball-spline/spbr-spbf/  .

Topics:
Automation Motion Control Robotics Test & Measurement

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    Transcript

    00:00:04 nb's ball spline utilizes ball bearings as its rolling elements and consists of a nut and a spline shaft its movement is similar in principle to that of Ball Bush the primary difference from The Ball Bush is that both the spline shaft and the outer cylinder have the arch-shaped grooves which approximate the diameter of rolling balls

    00:00:33 in effect these arch-shaped grooves of the spline shaft and outer cylinder allow ball elements to come in contact in linear motion displacing the load this compared with a ball Bush's single point contact load capacity of one ball in the NB ball spline is increased about 10-fold compared with the same size Ball Bush the NB ball spline provides approximately 700 times greater travel

    00:00:59 life with the unique structure of the NB ball spline miniaturization of a device becomes possible from conventional multiple axis to a single axis the ball elements contact the arch-shaped groove of the spline shaft and the outer cylinder so that when power is added to the spline shaft in a rotational Direction This movement is

    00:01:34 transmitted to the outer cylinder much like a gear this special feature of the NB ball spline is enhanced to achieve both linear and rotary motion either simultaneously or independently by a single AIS component nb's spr spline consists of both spline and rotary function within a single component the spr is the ideal component for application ations

    00:02:00 requiring multi-motion movement of both linear and rotary please note that applications such as pick and place and automatic tool Changers are some in which the NB ball spline is [Music] [Music] used [Music]

    00:02:36 d