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752-3989 — BEARING,BALL,DUPLEX

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

752-3989: BEARING,BALL,DUPLEX.

The BEARING,BALL,DUPLEX is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, load_direction: RADIAL, surface_finish: GROUND, special_features: PAIR OF BEARINGS SUITABLE FOR FACE TO FACE DUPLEX MOUNTING, bearing_preload_rating: 2.0 POUNDS NOMINAL LBS, retainer_fabrication_method: PRESSED. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-787-4546, 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
752-3989
NSN: 3110-00-787-4546
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 62143 — NORTHERN TELECOM INC TELECOM DISTRIBUTION DIV (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
load_directionRADIAL
surface_finishGROUND
shield_quantity2
special_featuresPAIR OF BEARINGS SUITABLE FOR FACE TO FACE DUPLEX MOUNTING
bearing_preload_rating2.0 POUNDS NOMINAL LBS
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.7
NSN3110-00-787-4546
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 752-3989 · 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: PRESSED
•
BEARING PRELOAD RATING: 2.0 POUNDS NOMINAL LBS
•
SURFACE FINISH: GROUND
•
SHIELD QUANTITY: 2
•
LOAD DIRECTION: RADIAL
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.7
•
MATERIAL: GREASE LUBRICATION
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODPRESSED
BEARING PRELOAD RATING2.0 POUNDS NOMINAL LBS
SURFACE FINISHGROUND
SHIELD QUANTITY2
LOAD DIRECTIONRADIAL
SPECIAL FEATURESPAIR OF BEARINGS SUITABLE FOR FACE TO FACE DUPLEX MOUNTING
STANDARD TOLERANCE DESIGNATIONABEC NO.7
MATERIALGREASE LUBRICATION
MATERIALSTEEL CORROSION RESISTING OVERALL
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 1
SR4SSDF2G2Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 752-3989?
752-3989 is a BEARING,BALL,DUPLEX.
What parts can replace 752-3989?
There is 1 known substitute for 752-3989: SR4SSDF2G2. Substitute compatibility should be verified for your specific system.
What is the NSN for 752-3989?
752-3989 is cataloged in the U.S. Government catalog under NSN 3110-00-787-4546. 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.