Aerospace Bearings
Roughly 3,400 bearings for flight controls, actuation, and airframe structure. Spherical plain bearings such as MS14101 and MS14103, airframe control ball bearings, and roller styles, ready to order with full AS9120 traceability.
Aerospace Bearing Types
From self-lubricating spherical bearings to airframe control ball bearings and track rollers, we cover the bearing styles that keep flight controls and mechanisms moving.
Spherical Plain Bearings
A ball with a spherical outer surface rides in a matching race, letting control rods, actuator ends, and landing gear links articulate under load. Self-lubricating series such as MS14101 and MS14103 are common airframe callouts.
Airframe Ball Bearings
Low-speed, oscillating ball bearings built for control pulleys, bellcranks, hinges, and torque tubes, in series such as MS27640. They are designed for high static loads and small angular movements rather than continuous high-speed rotation.
Roller & Needle Bearings
Cylindrical rolling elements deliver higher radial capacity in a compact envelope. In airframe use they typically appear as track rollers and needle bearings on flap, slat, and door mechanisms where loads are high and space is tight.
Self-Lubricating Liner Systems
PTFE-based liner systems eliminate relubrication in service, while grease-lubricated designs rely on scheduled servicing. The drawing callout defines which system the joint was designed around; the two are not interchangeable.
Bearing Materials & Construction
Bearing Steels
Through-hardened chrome steels such as 52100 and corrosion-resistant grades such as 440C are typical for balls, rollers, and races, chosen for hardness, fatigue life, and, where required, corrosion resistance.
CRES Rings & Races
Corrosion-resistant outer members for spherical bearings and related housings in exposed zones such as landing gear and flight control linkages, where moisture and deicing fluids attack plain steel.
PTFE Liner Systems
Woven or molded PTFE liners bonded to the race provide dry lubrication for the life of the part, a standard feature of self-lubricating spherical bearings on modern airframes.
Seals, Shields & Plating
Sealed and shielded ball bearing variants keep grease in and contamination out, while plating and passivation protect external surfaces. Order the exact variant and dash number called out on your drawing.
How to Order Aerospace Bearings
Search by Part Number
Enter your bearing part number, such as an MS14101 or MS14103 spherical bearing with its dash number for bore size, and review the available options.
Get a Fast Online Quote
Add the quantities you need to your quote. Compare options sourced from our approved suppliers on price, lead time, and minimum order quantity.
Order with Confidence
Check out securely online. Every shipment includes certificates of conformance backed by our AS9120 Rev B quality management system.
Your Distribution Partner for Aircraft Bearings
With roughly 3,400 bearing line items in the Instaparts catalog of 266,000+ aerospace parts, we cover the components that let an airframe move: control linkages, actuator attachments, hinges, pulleys, and gear mechanisms all rotate or articulate on bearings. Unlike commodity industrial bearings, airframe bearings are qualified, engineered parts. Load ratings, liner systems, internal fits, and materials are all part of the callout, and substituting a dimensional look-alike is never acceptable in aerospace.
The landscape divides by motion and load. Spherical plain bearings, such as the self-lubricating MS14101 and MS14103 series, accept misalignment in control rods, actuator ends, and landing gear links. Airframe control ball bearings, in series such as MS27640, handle the low-speed oscillating motion of pulleys, bellcranks, and torque tubes under high static loads. Roller and needle styles typically appear as track rollers on flap, slat, and door mechanisms where radial capacity matters most. Across all of these, the choice between a PTFE-lined self-lubricating design and a grease-lubricated one is fixed by the drawing, not by preference. Instaparts catalogs these families so you can search and quote by exact part number.
Every bearing we supply moves through our AS9120 Rev B certified quality management system. Instaparts, a division of RFQ2Go, Inc. based in Toronto, Canada, sources exclusively from approved suppliers and applies counterfeit-prevention controls aligned with AS6081. Shipments include certificates of conformance, and lot traceability is maintained from receipt through delivery, protecting flight control and landing gear installations from suspect parts.
Bearing installations connect to the rest of the airframe through companion hardware. The same drawings typically call out aerospace bushings for plain sleeve positions, aerospace pins for clevis joints, and aerospace bolts to retain the joint. If your requirement covers multiple categories or a long bill of materials, send it through our quote page and our team will price the complete package.
Aerospace Bearing FAQs
What is a spherical plain bearing used for?
A spherical plain bearing has a ball with a spherical outer surface riding in a matching race, so the joint can articulate and accept misalignment while carrying high loads. They are standard in control rod ends, actuator attachments, and landing gear links, anywhere a joint must pivot slightly under load without binding.
What is the difference between self-lubricating and grease-lubricated bearings?
Self-lubricating bearings, such as the MS14101 and MS14103 spherical series, carry a PTFE-based liner that provides dry lubrication for the life of the part. Grease-lubricated designs rely on scheduled servicing instead. The two are not interchangeable; the drawing callout defines which system the joint was designed around.
What is the difference between a bearing and a bushing?
A bushing is a plain sleeve that supports a pin or shaft through sliding contact, while a bearing adds rolling elements or a spherical interface to reduce friction and allow articulation. Many airframe joints use both in the same assembly, and each is called out by its own part number on the drawing.
Can I substitute a bearing with matching dimensions?
No. Airframe bearings are qualified parts: load ratings, liner systems, internal fits, and materials are all part of the specification. A dimensional look-alike from an industrial catalog does not meet the callout. Order the exact part number from the drawing, including the dash number.
What documentation comes with your bearings?
Instaparts operates an AS9120 Rev B certified quality management system. Orders ship with certificates of conformance, lot traceability is maintained back to our approved suppliers, and counterfeit-prevention controls aligned with AS6081 are applied across our supply chain.
Need Aerospace Bearings?
Browse the catalog by part number, from MS14101 spherical bearings to airframe ball and roller styles, and get a fast online quote with full AS9120 traceability.
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