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672B778P1 — BEARING,BALL,DUPLEX

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

672B778P1: BEARING,BALL,DUPLEX.

The BEARING,BALL,DUPLEX is a the manufacturer industrial component. Key specifications include material: STEEL BALL, bore_diameter: 1.7712 INCHES MINIMUM AND 1.7717 INCHES MAXIMUM IN, overall_width: 0.9294 INCHES MINIMUM AND 0.9449 INCHES MAXIMUM IN, load_direction: ANGULAR, surface_finish: GROUND, style_designator: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-034-6440, 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
672B778P1
NSN: 3110-00-034-6440
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 99207 — GENERAL ELECTRIC COMPANY DBA GE AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL BALL
bore_diameter1.7712 INCHES MINIMUM AND 1.7717 INCHES MAXIMUM IN
overall_width0.9294 INCHES MINIMUM AND 0.9449 INCHES MAXIMUM IN
load_directionANGULAR
surface_finishGROUND
style_designatorCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
precious_materialSILVER
surface_treatmentSILVER RETAINER
bearing_preload_rating10.0 POUNDS NOMINAL LBS
overall_outside_diameter2.6767 INCHES MINIMUM AND 2.6772 INCHES MAXIMUM IN
bearing_preload_designationLIGHT
precious_material_and_locationRETAINER SURFACE SILVER
NSN3110-00-034-6440
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 672B778P1 · 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
•
BEARING PRELOAD RATING: 10.0 POUNDS NOMINAL LBS
•
SURFACE FINISH: GROUND
•
BEARING PRELOAD DESIGNATION: LIGHT
•
PRECIOUS MATERIAL: SILVER
•
STYLE DESIGNATOR: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
•
OVERALL OUTSIDE DIAMETER: 2.6767 INCHES MINIMUM AND 2.6772 INCHES MAXIMUM IN
•
LOAD DIRECTION: ANGULAR
TECHNICAL CHARACTERISTICS
BEARING PRELOAD RATING10.0 POUNDS NOMINAL LBS
SURFACE FINISHGROUND
BEARING PRELOAD DESIGNATIONLIGHT
PRECIOUS MATERIALSILVER
STYLE DESIGNATORCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
OVERALL WIDTH0.9294 INCHES MINIMUM AND 0.9449 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER2.6767 INCHES MINIMUM AND 2.6772 INCHES MAXIMUM IN
LOAD DIRECTIONANGULAR
SURFACE TREATMENTSILVER RETAINER
PRECIOUS MATERIAL AND LOCATIONRETAINER SURFACE SILVER
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
RDB100BReference 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 672B778P1?
672B778P1 is a BEARING,BALL,DUPLEX.
What parts can replace 672B778P1?
There is 1 known substitute for 672B778P1: RDB100B. Substitute compatibility should be verified for your specific system.
What is the NSN for 672B778P1?
672B778P1 is cataloged in the U.S. Government catalog under NSN 3110-00-034-6440. 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.