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Precision Ultra Light Aerospace Gears

Our partner Reliance Precision UK established a milestone last year by having an important gear product make a 310 million mile-journey. This gear was critical to the deployment of the solar panels that powered the Rosetta satellite. The gear had a lot riding on it's shoulders. Failure was not an option. Millions of dollars were at stake.

Precision Gear Wheel

Deep Space Proven Product

Precision Ultra Light Precision Gear

Enabling technology for special light weight aerospace applications.

Must endure extreme temperature variations yet maintain geometry and strength to rotate large solar arrays that powers the Rosetta satellite.
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How about these product requirements:

  • Gear must be as light as possible. Each additional gram adds X millions of dollars to the program.
  • The gear must not fail in the application. Product cannot be serviced. Product will never return to Earth.
  • Product expose to extreme temperature variation.
  • Lubricant cannot be used in application.

Satellite Geared Products

The importance of this project to us was to prove our capabilities to make a gear that appears rather simple yet in fact is quite difficult to manufacture. Why is that? To make a this diameter with paper thin webbing to meet the weight requirement a challenge. How do you hold the part when machining? Cutting tool forces can easily deflect or bend the part. How do you maintain a pilot diameter that is concentric with the gear pitch for such a thin light weight part?

Extremely Light Weight

Very thin webbing, concentric pilot bore with six bolt holes to secure the gear to the solar array shaft.

Gear products of this type are difficult to produce without very specialized machinery and highly skilled people.

This particular gear is made of stainless steel. It is accurate to 0.01mm or ten microns. Weight is 700 grams (1.5 lbs)

Gear has been is deep space for over ten years now.

Typical Product Use

A few areas where you can find these or similar products in use are listed below:

  • Satellites
  • Missles & Rockets
  • Defense & Commercial Aircraft
  • Unmanned Aircraft, Drones

Custom Design Capabilities

Special Samples: USA production facility maintains a reserve capability to design, machine, and develop prototypes for custom application requirements.

Questions: Our engineering team is always looking for a challenge.

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The Precision Alliance | More than components... Solutions!The Precision Alliance | More than components... Solutions!