URS Series provide precision 360° continuous motion in a low profile package. URS Series stages feature: a proprietary ball bearing with exceptional stiffness, high reliability, minimal wobble and eccentricity; a tilted worm screw arrangement to allow 4 symmetric mounting holes, providing better support for cantilevered loads; adjustable limit switches to prevent over-travel (except for URS50B); and a flexible preloading system to guarantee backlash-free operation with an MTBF of 20,000 hours. The DC motor version features an ultra-high resolution encoder, 8,000 cts/rev, mounted on the worm screw, ensuring excellent bi-directional repeatability and high accuracy motion. The DC motor versions provides the highest dynamic speed range and allows rotation speeds up to 80 °/s. The stepper motor version is an economical solution for less demanding applications and with its high output torque, minimizes any risk of lost steps, providing good linearity between the stage’s motion and commanded steps. The URS is also available in vacuum compatible versions down to 10e-6hPa. Additionally the CONEX-URS50BCC is the URS50BCC rotational stage with the integrated CONEX-CC controller/driver and is pre-configured for the highest level of out-of-the-box control. The CONEX-CC is a very compact and inexpensive driver for Newport’s low power DC servo motor driven devices.

Furthermore, except for the URS50B stages, all other versions feature adjustable limit switches to prevent over travel.

The URS is available in vacuum compatible versions to 10e-6hPa. See the URS75BPPV6 .