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Technical Data Sheet
PartsTable / COMPONENT / 2901-1/2
2901-1/2 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The 2901-1/2 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-226-8786, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
2901-1/2
NSN: 3110-01-226-8786
FSC: 3110
CAGE: 03489 — ANDREWS BEARING CORP DIV OF MPB CORP SUB OF WHEELABRATOR-FRYE INC (USA)
SPECIFICATIONS
Part Number2901-1/2
NSN3110-01-226-8786
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 2901-1/2 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: COPPER ALLOY RETAINER
•
OVERALL OUTSIDE DIAMETER: 42.0 MILLIMETERS NOMINAL MM
•
RETAINER FABRICATION METHOD: MACHINED
•
LARGEST BORE DIAMETER: 0.8690 INCHES MINIMUM AND 0.8790 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: GROOVED RACE SURFACE
•
SURFACE FINISH: GROUND
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY RETAINER
MATERIALSTEEL CORROSION RESISTING BALL
OVERALL OUTSIDE DIAMETER42.0 MILLIMETERS NOMINAL MM
RETAINER FABRICATION METHODMACHINED
LARGEST BORE DIAMETER0.8690 INCHES MINIMUM AND 0.8790 INCHES MAXIMUM IN
OVERALL HEIGHT14.0 MILLIMETERS NOMINAL MM
STYLE DESIGNATORGROOVED RACE SURFACE
SURFACE FINISHGROUND
THRUST DIRECTIONAL CAPABILITY DESIGNATIONSINGLE
MATERIALSTEEL CORROSION RESISTING THRUST PLATE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
29011-2Interchangeable
interchangeable cross-reference
interchangeable
50913-4Interchangeable
interchangeable cross-reference
interchangeable
2904-1/2SS3Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2901-1/2?
2901-1/2 is a 2901-1/2.
What parts can replace 2901-1/2?
There are 3 known substitutes for 2901-1/2: 29011-2, 50913-4, 2904-1/2SS3. Substitute compatibility should be verified for your specific system.
What is the NSN for 2901-1/2?
2901-1/2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-226-8786. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026