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As an aerospace bearing distributor, MMB Bearings offers bearing solutions for almost any aerospace applications, including airframe and flight control, engines, gearboxes, auxiliary mechanical systems, rotorcraft and VOTL, landing gear, and wing assemblies and mounts. We supply aerospace bearings that meet the most demanding and rigorous requirements for aerospace mechanical assemblies and components

MMB Bearing Airplane in flight


In general, bearings used for aerospace and aeronautic applications are critical components designed with exacting tolerances to meet the demands of ultra-precise applications and superior rotational accuracy. Also, these high-performing bearings must be reliable and durable enough to withstand immense pressure and force, drastic thermal changes, and extreme friction and wear that are required. To improve fuel efficiency, reduce labor costs by extending maintenance intervals, and lowering carbon emissions, both fixed-wing and rotary-wing aircrafts rely on bearings that offer high‑load capacities while saving space and reducing weight. In addition, aerospace ball and roller bearings must offer long service life and be virtually maintenance-free.

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Our Supply

MMB Bearings is your large stock and aerospace bearing distributor for OEM, custom, and highly specialized bearing for virtually any aerospace mechanical assembly. As a member of the Aviation Suppliers Association (ASA) for over 40 years, we supply aircraft bearings that are manufactured to conform to SAE International guidelines and U.S. government military (MIL-SPEC) specifications. We supply most of the most commonly used series of aerospace bearings, including the following:

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Aerospace Bearing Supply
  • KP
  • KSP
  • DPP
  • DSP
  • DW
  • GDW
  • MS
  • SAE
  • MB500
  • Aw-Ak
  • Y-PwI

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Aerospace applications and military aerospace applications require the most demanding and extreme applications when it comes to lubrication. Because component failure in aerospace applications can be catastrophic, the demands placed on bearings and the lubricant are tremendous.

MMB Bearings offers comprehensive maintenance, including bearing cleaning services and bearing relubrication services, for all your aerospace and military aircraft bearings. We can refurbish your existing aerospace bearing inventory or apply a specialty lubricant designed specifically for aerospace and aeronautic applications.


As one of the largest aerospace bearing distributors in the United States, MMB Bearings can help you select the right bearing for all your aircraft bearing needs. The following are the aerospace bearings that we offer.

Over 100 years of combined experience 


MMB Bearings is one of the nation’s largest stocking distributors and suppliers of high-quality ball and roller bearings, including miniature stainless steel bearings. We have been in business for over 40 years and are an ISO 9001:2015 certified stocking distributor. With millions of dollars of cost inventory that is stocked in a climate controlled warehouse, we are ready to fulfill all your bearing needs. We offer the top brands in the industry, including NMB, Schaeffler (Barden, FAG, INA) GRW, NHBB, EZO, and Timken, and have a bearing solution for virtually every application.

We also over white room cleaning services, including cleaning, relubrication, repackaging, labeling, and kit services to help extend the service life of your bearings. We also offer custom lubrication services to help you find the right lubricant for such applications as clean-room, high temperature, food and beverage processing, medical, and low torque.

Our helpful staff is here to support you with over 100 years of combined bearing experience and knowledge. We also offer expedited and same-day shipping upon request. At MMB Bearings, we are ready to be your supply chain provider and one‑stop source for all of your bearing requirements.

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