This year,DRE have developed a new product Precision Ball Screw / Spline,a single axis of the Ball Screw/Spline can provide positioning, linear and rotary motion as well as combined spiral motion.The typical applications are SCARA robot, assembly machine, loader, etc.

Structure and Features

 The Ball Screw/Spline contains the Ball Screw grooves and the Ball Spline groove crossing one another. The nuts of the Ball Screw and the Ball Spline have dedicated support bearings directly embedded on the circumference of the nuts.

The Ball Screw/Spline is capable of performing three (rotational, linear and spiral) modes of motion with a single shaft by rotating or stopping the spline nut.

It is optimal for machines using a combination of rotary and straight motions, such as scholar robot's Z-axis, assembly robot, automatic loader, and machining center's ATC equipment.

• Lightweight and Compact

Since the nut and the support bearing are integrated, highly accurate, compact design is achieved. In addition, small inertia because of the lightweight ball screw nut ensures high responsiveness.

• Easy Installation

The Ball Spline nut is designed so that balls do not fall off even if the spline nut is removed from the shaft, making installation easy. The Ball Screw/Spline can easily be mounted simply by securing it to the housing with bolts. 

• Smooth Motion with Low Noise

As the Ball Screw is based on an end cap mechanism, smooth motion with low noise is achieved.

Example of Assembly

Example of Using the Spring Pad