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Nexen Rotary Positioning

Nexen’s Precision Rotary Motion technology is a combination of very high precision rotary drive systems, high torque rotary brakes, and mechanical torque limiters, all delivering zero backlash.

Nexen Gears & Gear Segments

Utilising smaller segments of the gear to assemble the full gear allowed for lower system cost, simple transport, and easier installation.

An oversized CNC machine house required an 11.4 meter diameter gear with very high precision. Getting a gear this large machined and shipped was not impossible, but very costly.

Product Highlights

  • External or internal teeth
  • High rotary accuracy with zero backlash
  • Gear segments have the versatility to create a range of arc lengths or full rings
  • An alignment tool allows for precise joining of more than one segment
  • •Standard and custom gears are available

Typical Applications

  • Custom Machines
  • Consumer Goods
  • Packaging
  • Assembly
  • Pharmaceutical

Nexen Zero Backlash Geared Bearings

Geared Bearings provide a great solution where customization and tight spaces require the perfect fit.

A manufacturer required a low profile system but could not find a good existing indexer system to fit the torque, mounting configuration, and diameters required.

The geared bearing provided the optimum solution for the price versus and minimizing the size requirement of the total machine package.

Product Highlights

  • High positional accuracy
  • Zero backlash
  • No cumulative error
  • High speed & rigidity
  • Low maintenance

Typical Applications

  • Automotive
  • Aerospace
  • Material Fabrication
  • Medical
  • Robotics

Nexen Compact Packaged Rotary Indexers

An automated material handling application needed an indexing solution to work in conjunction with SCARA Robots.

Utilizing a rotary dial plate is customizable for optimum efficiency. Assembly of the small components requires a press operation at a fixture station where accuracy and repeatability is critical.

Product Highlights

  • Smooth motion – preloaded cross-roller bearings & integrated motor/precision gearhead
  • Freely programmable
  • Available with 150,250,350,550 mm output bolt circle
  • Large open center for optimum performance in compact space
  • Sealed housing IP65 available

Typical Applications

  • Bio-Technology
  • Electronics/Semiconductor
  • Food & Beverage
  • Pharmaceutical
  • Consumer Goods

Nexen Heavy Load Indexers

A transmission case is loaded on top of a heavy load indexer and clamped in place.

The Indexer rotates case aligning machine holes with press actuators inserting plugs to a specified depth/pressure.

This transmission assembly plant was having issues with machine indexing systems lacking rigidity and accuracy which were solved with the Heavy Load Indexer.

heavy load indexer

Product Highlights

  • Large center opening ideal for pass-through integration
  • Rigid System with smooth rotary motion
  • Unlimited rotary output displacement
  • Output baring design is ideal for ‘Headstock/Tailstock’ automation
  • Maintenance- free performance

Typical Applications

  • Robotics Integration
  • Aerospace
  • Assembly/Custom Machines
  • Defense
  • Theme Parks and Theatrical

Nexen Products


Functional Safety Certified Rail Brakes, Servomotor Brakes, Rod Locks,

Linear Positioning

Rack & Roller Pinion Systems. Long Travel, High Speed & Accuracy with Zero Backlash

Rotary Positioning

Gears & Gear Segments, Zero Backlash Geared Bearings, Compact Packaged Rotary Indexers, Heavy Load Indexers.

Stopping & Holding

Servo Brakes, Ball Screw Brakes, Guide Rail Brakes, Rod Locks.

Engaging & Disengaging A Load

Engaging & Disengaging A Load

Tooth Clutches, Friction Clutches, Clutch/Brake Combinations

Stopping & Holding A Load During Machine Operation

Air Engaged Friction Brakes, Caliper Brakes, Spring Engaged Friction Brakes