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2-300-028-01 — BEARING,BALL,DUPLEX

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

2-300-028-01: BEARING,BALL,DUPLEX.

The BEARING,BALL,DUPLEX is a the manufacturer industrial component. Key specifications include material: STEEL OUTER RING, bore_diameter: 55.0 MILLIMETERS NOMINAL MM, overall_width: 26.0 MILLIMETERS NOMINAL MM, load_direction: ANGULAR, surface_finish: GROUND, style_designator: COUNTERBORED OUTER RINGS, NON-SEPARABLE, TANDEM MOUNTING. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-863-1211, 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
2-300-028-01
NSN: 3110-00-863-1211
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 99193 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - PHOENIX (USA)
SPECIFICATIONS
materialSTEEL OUTER RING
bore_diameter55.0 MILLIMETERS NOMINAL MM
overall_width26.0 MILLIMETERS NOMINAL MM
load_directionANGULAR
surface_finishGROUND
style_designatorCOUNTERBORED OUTER RINGS, NON-SEPARABLE, TANDEM MOUNTING
internal_clearance0.0080 INCHES NOMINAL AXIAL AND 0.0008 INCHES MINIMUM RADIAL AND 0.0017 INCHES MAXIMUM RADIAL IN
bearing_preload_rating1000.0 POUNDS NOMINAL LBS
overall_outside_diameter80.0 MILLIMETERS NOMINAL MM
retainer_fabrication_methodMACHINED
standard_tolerance_designationABEC NO.5
material_document_and_classificationUNABLE TO DECODE
NSN3110-00-863-1211
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 2-300-028-01 · 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
•
RETAINER FABRICATION METHOD: MACHINED
•
BEARING PRELOAD RATING: 1000.0 POUNDS NOMINAL LBS
•
INTERNAL CLEARANCE: 0.0080 INCHES NOMINAL AXIAL AND 0.0008 INCHES MINIMUM RADIAL AND 0.0017 INCHES MAXIMUM RADIAL IN
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: COUNTERBORED OUTER RINGS, NON-SEPARABLE, TANDEM MOUNTING
•
MATERIAL DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
•
OVERALL OUTSIDE DIAMETER: 80.0 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
BEARING PRELOAD RATING1000.0 POUNDS NOMINAL LBS
INTERNAL CLEARANCE0.0080 INCHES NOMINAL AXIAL AND 0.0008 INCHES MINIMUM RADIAL AND 0.0017 INCHES MAXIMUM RADIAL IN
SURFACE FINISHGROUND
STYLE DESIGNATORCOUNTERBORED OUTER RINGS, NON-SEPARABLE, TANDEM MOUNTING
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
OVERALL WIDTH26.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER80.0 MILLIMETERS NOMINAL MM
LOAD DIRECTIONANGULAR
SPECIAL FEATURESSTABILIZED FOR OPERATION AT 65 DEG F TO P 350 DEG F,THRUST MARKING (V) ON OD OF OUTER RINGS,MAX SURFACE FINISH,BALL 2 UIN AA,INNER AND OUTER RING GROOVE 10 UIN AA,RACE RETAINER PILOT SURFACE 20 UIN AA,RETAINER PILOTSURFACE 40 UIN AA,RETAINER BALL POCKET63 UIN AA,ID AND OD 13 UIN AA,RETAINERBORE CONCENTRIC TO OD WITHIN 0.002 IN.TIR IN
SUBSTITUTES & CROSS-REFERENCES 3
2-300-028-03Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2-300-028Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
D3-50156Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2-300-028-01?
2-300-028-01 is a BEARING,BALL,DUPLEX.
What parts can replace 2-300-028-01?
There are 3 known substitutes for 2-300-028-01: 2-300-028-03, 2-300-028, D3-50156. Substitute compatibility should be verified for your specific system.
What is the NSN for 2-300-028-01?
2-300-028-01 is cataloged in the U.S. Government catalog under NSN 3110-00-863-1211. 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.