Vacuum Rotation Stage, Stepper Motor, URS75

The URS75BPPV6 Vacuum Compatible Rotation Stage provides precision 360° continuous motion in a low profile package. It meets the requirements of numerous research and industrial applications and are directly compatible with our VP, XM, and GTS, linear stages. This stepper motor version is a more economical for less demanding applications. When used with motion controllers with high micro-step capability, like the XPS or ESP300, low noise operation and very small incremental motions are guaranteed. The stepper motor version does not use encoder feedback, but reach a position by the number of commanded steps and micro-steps. For this purpose, the stepper motor is directly attached to the worm screw using a proprietary bellows coupling that has a high torsional stiffness. The high output torque of the stepper motor minimizes the risk of lost steps and provides good linearity between commanded micro-steps and the actual motion of the stage. All URS rotation stages feature a proprietary 4-point contact ball bearing. The unique, 2-piece design of the URS provides a low-profile compact stage with exceptional stiffness, high reliability and outstanding wobble and eccentricity. The tilted worm screw arrangement allows for 4 symmetric mounting holes as compared to other designs that only feature 2 or 3 mounting holes. This enables the URS stages to provide better support of higher or off-centered loads. Additionally, the flexible preloading system for the worm gear guarantees a backlash-free operation with an MTBF of 20,000 hours.

Note: The cable supplied with the stage is not vacuum compatible due to various feed-through configurations and customer preferences. Please contact Newport for vacuum compatible cable options.