Newport Corp. (Irvine, CA) offers the URS50BCC and URS50BPP precision rotation stages that feature 360-degree continuous motion. The stages provide backlashfree, continuous rotation with MTBF up to 20,000, and low wobble. Both stages offer 6-μm eccentricity. The stages feature a two-part bearing design with pre-tempered steel gears and bearings. The URS50BCC, the DC motor version with index pulse for precision homing, is suitable for demanding applications that require bidirectional positioning. The URSBPP stepper motor version is suitable for less demanding, precision rotation applications. A cable is included with each stage for plug-andplay compatibility with SMC, ESP, and XPS.

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