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155121-101 — BEARING,BALL,DUPLEX

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

155121-101: BEARING,BALL,DUPLEX.

The BEARING,BALL,DUPLEX is a the manufacturer industrial component. Key specifications include bore_diameter: 1.3780 INCHES NOMINAL IN, overall_width: 1.3386 INCHES NOMINAL IN, load_direction: ANGULAR, style_designator: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING, overall_outside_diameter: 2.8346 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-033-7213, 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
155121-101
NSN: 3110-01-033-7213
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 0Y4E6 — BRANDON & CLARK, INC. DIV BRANDON & CLARK (USA)
SPECIFICATIONS
bore_diameter1.3780 INCHES NOMINAL IN
overall_width1.3386 INCHES NOMINAL IN
load_directionANGULAR
style_designatorCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
overall_outside_diameter2.8346 INCHES NOMINAL IN
NSN3110-01-033-7213
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 155121-101 · 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
•
STYLE DESIGNATOR: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
•
OVERALL OUTSIDE DIAMETER: 2.8346 INCHES NOMINAL IN
•
LOAD DIRECTION: ANGULAR
•
BORE DIAMETER: 1.3780 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
OVERALL WIDTH1.3386 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER2.8346 INCHES NOMINAL IN
LOAD DIRECTIONANGULAR
BORE DIAMETER1.3780 INCHES NOMINAL IN
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 155121-101?
155121-101 is a BEARING,BALL,DUPLEX.
What is the NSN for 155121-101?
155121-101 is cataloged in the U.S. Government catalog under NSN 3110-01-033-7213. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.