Custom Mechanisms and Actuators

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SADA 3

 

Overview

NEA’s actuator product team is dedicated to providing electromechanical actuators for spaceflight applications and consists of a management and engineering team with over 45 years of experience in the design and manufacture of spacecraft actuators.

NEA can analyze, design, and manufacture electromechanical actuators to customer specifications for demanding spaceflight applications. All analysis and design is performed in-house with the latest analytical tools. NEA makes effective use of parametric models that are dynamically linked to our analysis. Our manufacturing operations are supported by a select team of precision machining services.

NEA Electronics’ broad technical capability means that our customers will never be forced to use a technology that is not the best option for their application.

We Speak Your Language

NEA's spacecraft actuators design team has nearly 50 years of spacecraft actuator design experience and have worked at many of the spacecraft prime contractors.  We know your concerns and understand that reduction of risk through high margins, detailed analytical modeling, peer review and correlation through rigorous testing is absolutely critical.

Products

Gimbals and Pointing Mechanisms

NEA can provide precision pointing mechanisms in multi-axis configurations for fine positioning of payloads on orbit.  Our devices incorporate advanced stepper motors driving through zero backlash transmissions and coupled with output telemetry devices. 

NEA Antenna Gimbals have been designed specifically to meet the performance, electrical interface and mechanical interface requirements of the major satellite suppliers.  Our devices are available with both 3 phase and 4 phase windings and are currently undergoing qualification.

Solar Array Drive Actuators

NEA can provide custom Solar Array Drive Actuators that are optimized for our customer’s applications with complete supporting analysis packages and even dynamic models to verify on-orbit operation.

Linear Actuators

NEA’s technical team is well versed in linear actuator design for space applications.  NEA can provide precision linear actuators for fine pointing.

Deployment Actuators

For applications that require work and high efficiency NEA can provide spaceflight brushless DC motors with integral planetary gearheads for very efficient deployment or other work type applications.  Our brushless DC motors and planetary gearboxes are all designed in-house for maximum control and flexibility to customer requirements.

Motors

NEA designs and manufactures high performance custom motors for spaceflight applications including:

  • Brushless DC Motors
  • Permanent Magnet Stepper Motors
  • Hybrid Stepper Motors

NEA motors are available with a variety of options including:

  • Redundant Windings
  • Rare Earth Materials
  • Accessory Shafts
  • Low Cogging Torque
  • Inverted
  • Frameless

Gearboxes

NEA designs and manufactures precision gearboxes for all manner of spaceflight application. Design features include high specific stiffness and torque capability, low and zero backlash, long life, aerospace materials and low vapor pressure lubricants. Available gearbox configurations include:

  • Spur, Helical
  • Epicyclic (Planetary, Star, Differential)
  • Strain Wave Gearing ('harmonic drive')
  • Cycloidal
  • Ball Screws

Electronics

NEA can provide stepper motor controllers as well as brushless DC motor drivers for spaceflight applications. 

Actuator Accessories

NEA can also provide an array of Mechanisms and Components that can be combined with our motors and transmissions in any combination for a robust range of actuators and systems including:

  • Twist Capsules
  • Encoders, Resolvers, Potentiometers and Limit Switches
  • Rotary Wave Guide and Coaxial Joints
  • Slip Rings
  • Brakes and Clutches
  • Passive and Powered Latching Hinge Assemblies
  • NEA Release Devices