Robotics rotary ball spline

Robotics rotary ball spline

January 8, 2018

Nippon Bearing

http://www.nbcorporation.com
Automation Design Components Motion Control

Nippon Bearing's rotary ball spline has a nut that rolls on the ball spline shaft making it capable of linear and rotary motion, and consistently provides sub-millimeter accuracy.

There is a lot of torque acting on a robotic arm, which is transferred by a ball spline. In addition, it can be customized to allow cabling to run the length of the robotic arm by using a hollow shaft ball spline.

For greater load rating without increasing the size of the machine, users can specify a ball spline with cross rollers as opposed to balls in the rotary motion.