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New Precision Ring Drive from Nexen

By Miles Budimir | May 1, 2012

Vadnais Heights, Minn. – Nexen’s new Precision Ring Drive (PRD) provides precision motion control for indexing and rotary positioning systems. Offering a unique combination of design and performance capabilities, the PRD meets positioning demands for next-generation machine designs. 

By merging Nexen’s innovative Roller Pinion System technology with a precision-grade bearing and gearhead, the PRD provides unparalleled performance for indexing and rotary positioning applications. With accelerations twice as high as similar indexing technologies, it can reach speeds up to 300 rpm, and unlike traditional cam-driven systems, the PRD can also handle peak torque inputs at all times. It also offers indexing precision up to ± 11 arcsec with repeatability up to ± 1.2 arcsec. Supported by a high-capacity cross-roller bearing, it’s rated for loads up to 1575 kN, allowing it to accommodate demanding application requirements.

Containing a roller pinion system that is 99 percent efficient and a gearbox that performs at a 96 percent efficiency rating, the PRD meets current industry demands for higher performance capacities at lower energy costs. Its construction also provides continuously smooth motion, minimizing vibration during operation and resulting in less noise than conventional technologies. Also, with the pinion’s lifespan of up to 60,000,000 revolutions, superior rigidity due to the preloaded cross-roller bearing, RPS and precision gearbox, the PRD provides greater durability and longevity over alternative solutions.

The design also minimizes maintenance requirements while enhancing flexibility. The elimination of oil baths allows the PRD to reduce labor and maintenance by not requiring time-consuming clean-ups. Further, the absence of oil baths also lets the drive mount in any orientation. Plus, with the drive’s large open center, it easily mounts to equipment while cabling can be filtered through the center, simplifying installation and improving mounting versatility.

Applications for the PRD include welding systems, positioning systems, medical products, robotics, automotive, aerospace, semiconductors, and material fabrications.

For more information, visit www.nexengroup.com.

www.nexengroup.com

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About The Author

Miles Budimir

Miles has been with Design World since 2009 covering motion control, automation, and test and measurement. He holds a BSEE degree and an MA in Philosophy from Cleveland State University and has experience working in the controls industry as a project engineer. Miles has taught engineering technology courses as well as engineering ethics continuing education courses for professional engineers in the state of Ohio. He is also a drummer, and enjoys travel and photography.

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