Nexen Introduces New Compact Ring Drive 250B with Built-in Brake, Zero Backlash and Zero Added Envelope

Vadnais Heights, MN – Nexen Group, Inc. introduces the patent pending , an expansion of the company’s innovative Compact Ring Drive (CRD) system. The 250B includes a built-in zero backlash locking/brake design that delivers twice the nominal torque without increasing the CRD footprint. It is extraordinarily durable, with a brake life of 1 million cycles, and requires little to no maintenance. The CRD 250B is ideal for applications including cutting systems, automated welding, medical packaging,robotics, and semiconductor. The CRD 250B brake is spring engaged and pneumatically released so that it will default to lock in a power failure or emergency situation. Nexen has also made air line management easy with radial slots for cable/line routing and pneumatic bard fitting installed.  

Highlights of the CRD 250B include:

• Holding torque: 800Nm
• Maximum release pressure: 60 psi
• Thru hole: 31.7 mm ~ 1.25 inches
• Fully sealed IP65-rated housing
• E-stop capable

The Nexen CRD has a precision grade bearing and drive mechanism in sealed housing. Freely programmable, the three-drive design configurations allow the CRD to be optimized for high speed (up to 225 RPM), high torque or both, depending on the application. With a 250 or 350 mm dial plate bolt circle diameter and a large open center, users can optimize performance in a small space. The combination of Nexen’s roller pinion technology with integrated bearing and motor/gearhead deliver a rigid, smooth system with zero backlash options from the motor through the driven load.

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About Nexen Group, Inc.
Our heritage is built on producing technically superior products while providing the highest level of customer support. As a leading manufacturer of precision motion control components, power transmission and web tension control products, Nexen works to remain at the forefront of cutting edge engineering and production excellence. Our production capabilities include computerized control and testing systems, dry cutting applications, special coating processes, over 80 multi-axis precision CNC machine tools and automated assembly. By working with Nexen, our customers experience innovations that adhere to industry specifications, optimize their metrics and provide solutions focused on increased uptime, longer machine life and reduced maintenance.