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ISO 9001:2000 Certified Quality Management System

Miniature Precision Ball Bearings

Aircraft Bearings

Product Offering

Stainless steel (440C) precision miniature ball bearings in standard inch sizes and various metric sizes are manufactured at our Troy, NY production facility. A variety of special features, including flanges, modified dimensions, and duplex designs are offered. Optional retainer and ball materials, coatings, and shield designs are available to meet the specific requirements of your application. Please visit our fully searchable, online catalog of instrument and miniature bearings.


Pacamor Kubar Bearings miniature and instrument ball bearings are built to the highest manufacturing standards with specific characteristics developed for demanding applications. From simple fishing reels to advanced aircraft guidance instrumentation and everything in between, you can be confident of Pacamor Kubar Bearings precision miniature ball bearings.

Miniature & Instrument Bearing Design

PACAMOR KUBAR BEARINGS offers a range of retainer designs and materials including, but not limited to Crown, Ribbon, heat and moisture resistant Phenolic, and Torlon (polyamide-imide). The use of dissimilar materials can prevent component welding and extend the life of the bearing in a variety of applications.

To this end, we offer standard 400C stainless steel or optional ceramic balls or titanium carbide coated 440C stainless steel balls in our miniature and instrument bearing designs. PKB bearings are available with up to ABEC 9 tolerances (as defined by the American Bearing Manufacturers' Association) with an optional flanged outer ring.

Miniature and instrument ball bearings are supplied ready for use, complete with your choice of bearing lubricant.

Instrumentation Bearings

Domestic Manufacturing

Pacamor Kubar Bearings manufacturing facility, located in Troy, NY is a ISO 9001:2008, AS9100:2009 and FAA TSO-C149, Aircraft Bearings Certified facility. PKB is proudly an American owned and operated company and is able to meet all DFARS domestic manufacturing requirements for applications relating to military and defense contracts.

All of the bearings that carry the Pacamor Kubar Bearings name have a reliable high level of quality. You can be certain, whether our precision miniature bearing is a single component in an oil well drilling device or the miniature bearing in your fishing reel, the Pacamor Kubar Bearings name is one you can trust.

Custom Products

Pacamor Kubar Bearings has the capability to assist with design engineering for custom mini bearing products. Available options include, but are not limited to, custom rings, retainers, shields, lubricants, and packaging.

Pacamor Kubar Bearings offers the right bearing at the right price for all your precision miniature and instrument applications.