Precision Ball Screws

Ball screws are among the most efficient devices available for converting rotary motion to linear motion. The high efficiency, which ranges from 50% to 98%, results in dramatic savings in system size and weight.


Increased efficiency, coupled with the mechanical reliability of ball bearing technology, permits heavy loads to be positioned by smaller, lower weight, less power-consuming motors and eliminates leakage, sponginess and problems associated with hydraulic or pneumatic systems. Recirculating ball bearings assure quiet, smooth, long life and trouble-free operation.


In-Stock Ball Screws


Beaver Aerospace & Defense is pleased to offer an extensive inventory of Boeing 737, 747 and 767 Horizontal Stabilizer Ball Screw Assemblies and component parts in stock. Inventory is also available for 737 Classic Series ball screws and a variety of thrust reverser ball screws. Contact us for a complete list of available parts, or visit the FAA-Approved Parts & Components page.


Boeing 747 Ball Screw


Industrial Ball Screws


Beaver has a long history of designing and building ball screws for industrial applications including machine tool applications. The following standard ball nut styles are available:

  • Non-preloaded and integral preload
  • Double nut preload
  • 4 circuit integral  preload
  • Preloaded housing for flange mounting
  • Preloaded housing for base mounting
  • Screw diameters range from .250" to 8" in diameter with multiple english and metric leads available.  

We are developing sizing charts to simply your ordering process, in the mean time please call us for specific requirements


Ball screw repair and overhaul services


Beaver also offers complete Repair & Overhaul services for aircraft ball screws, including FAA-approved ball screws and electromechanical actuators. We have nearly six decades of experience in manufacturing and repairing ball screws for aircraft applications. Each ball screw is given individual attention by one of our certified technicians. Our extensive inventory of component parts and complete assemblies allows us to tailor a repair program to meet your specific requirements.


Other Products from Beaver Aerospace & Defense

Interested in Precision or Industrial Splines, or Acme Screws? Click here. 


Interested in additional actuation solutions? Click here.







Beaver Aerospace & Defense, Inc., is a subsidiary of Phillips Service Industries, Livonia, Michigan



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© Beaver Aerospace & Defense, Inc. - 11850 Mayfield.  Livonia, MI. 48150 
Ph: 734.853.5003