Fixed Wing Aircraft Solutions

Kaman Self-Lubricating Bearings for Aerospace
Custom solutions for flight controls, landing gear, doors, actuators, engines, and structural attachment points

Our self-lubricating and high-precision bearings reduce maintenance costs, improve performance, decrease weight, and increase life. In addition, our custom-designed rolling element bearings make use of unique alloys and special coatings to help optimize load distribution.

Kaman Specialty Bearings for Fixed Wing Aircraft

Self-Lubricating Bearings

Fixed Wing

Our self-lubricating liner systems are known throughout the fixed wing aircraft industry for their improved performance, low wear rates, and low friction in even the most demanding applications. Whether in flight controls, passenger/cargo doors, landing gear, or other locations, our liner systems offer longer life and lower maintenance costs when exposed to high moisture levels, fluid/particulate contamination, and reduced or elevated temperatures. Every bearing solution can be tailored to your needs using our high performance machinable KAron and KAtherm liners or our industry-leading Fraslip fabric liners.

Our onsite, full service Test and Development Lab can support most development or qualification tests that may be needed for your bearing application. If your test requirements fall outside of our internal capabilities, we can utilize our network of trusted, third party test facilities to provide the performance data that you require.

Features & Benefits

  • All liner systems:
    • High dynamic and static operating load capacity
    • Low, consistent friction at ambient, reduced, and elevated temperatures
    • Capability with standard aerospace fluids
    • Can be applied to a variety of metallic and non-metallic substrates, including lightweight aluminum, glass or carbon composites, and titanium.
    • 100% maintenance free
    • Long life in a variety of dynamic conditions (anti-fretting, oscillations, rolling, or sliding)
    • Often designed to operate for the life of the aircraft
    • Tested and qualified to SAE AS81934, AS81820, AS8943, and AS85560 self-lubricating bearing standards (see Technologies section or Engineering Resources for details on specific liner qualifications and capabilities)
  • Machinable KAron and Katherm liner systems:
    • 100% bond, non-peelable
    • Can be applied to complex geometry
    • Liner thickness can be varied over a wide range
    • Allows for post-installation reaming or honing 
Self-Lubricating Bearings

Rolling Element Bearings

Where lowest friction, highest accuracy and higher speeds are required, rolling element bearings are the first choice. A wide range of designs can be offered from small deep groove ball bearings up to large, high load rating spherical roller bearings. Special platings, steels and lubricants allow for a wide range of applications.

  • Very low rotational friction
  • Continuous operation possible
  • Various designs:
    • Deep groove ball bearings
    • Angular contact ball bearings
    • Self aligning ball bearings
    • Spherical roller bearings
    • Track roller
    • Needle bearings
    • Special designs
    • Dry running hybrid bearings for temperatures up to 650°C


Specialty Rolling Element Bearings

Metal to Metal Bearings

These bearings are traditionally used for high load applications and/or severe environmental conditions such as high or low temperatures. Different types of construction and various coatings, platings and lubricants are available to ensure the best performance under almost any conditions.

  • Very high load rating
  • High tolerance to impact loads
  • Numerous materials possible
  • Cryogenic temperatures
  • High temperatures up to 800°C
  • Constructions:
    • SFormed outer ring
    • Outer ring with loader slot
  • Split ball design
  • Vacuum compatible


Kaman Metal to Metal Bearings


To learn more about our Fixed Wing Aircraft capabilities, download these brochures:

Business & Regional Capability Brochure

Aerospace Brochure

Kaman Specialty Bearings Company and Product Overview

Contact Kaman Specialty Bearings

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