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Technical Data Sheet
PartsTable / COMPONENT / 7309DB
7309DB ✓ 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 BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: GREASE LUBRICATION, bore_diameter: 1.7715 INCHES MINIMUM AND 1.7717 INCHES MAXIMUM IN, overall_width: 1.9665 INCHES MINIMUM AND 1.9685 INCHES MAXIMUM IN, load_direction: ANGULAR, surface_finish: GROUND, style_designator: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-8064, 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
7309DB
NSN: 3110-00-156-8064
FSC: 3110
CAGE: 21760 — SCHATZ BEARING CORPORATION DBA SCHATZ BEARING CORP (USA)
SPECIFICATIONS
materialGREASE LUBRICATION
bore_diameter1.7715 INCHES MINIMUM AND 1.7717 INCHES MAXIMUM IN
overall_width1.9665 INCHES MINIMUM AND 1.9685 INCHES MAXIMUM IN
load_directionANGULAR
surface_finishGROUND
style_designatorCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
overall_outside_diameter3.9368 INCHES MINIMUM AND 3.9370 INCHES MAXIMUM IN
internal_fit-up_designationSTANDARD
retainer_fabrication_methodPRESSED
departure_from_cited_documentANNUAL BALL BEARING FOR QUIET OPERATION APPLICATION TO SUBMARINE USAGE
criticality_code_justificationZZZW
lubrication_material_document_and_classificationMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
NSN3110-00-156-8064
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 7309DB · 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
•
MATERIAL: STEEL OVERALL
•
BEARING PRELOAD DESIGNATION: LIGHT
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
BORE DIAMETER: 45.00 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS (FLIS)
RETAINER FABRICATION METHODPRESSED
MATERIALSTEEL OVERALL
BEARING PRELOAD DESIGNATIONLIGHT
SPECIAL FEATURESANGULARITY GREATER THAN 25 DEG
STANDARD TOLERANCE DESIGNATIONABEC NO.1
STANDARD TOLERANCE DESIGNATIONABEC NO.1
BORE DIAMETER45.00 MILLIMETERS NOMINAL MM
OVERALL WIDTH50.00 MILLIMETERS NOMINAL MM
STYLE DESIGNATORCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
STYLE DESIGNATORCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
7309DBInterchangeable
interchangeable cross-reference
interchangeable
7309BGY2Interchangeable
interchangeable cross-reference
interchangeable
7309BEGBYInterchangeable
interchangeable cross-reference
interchangeable
7309DBNTInterchangeable
interchangeable cross-reference
interchangeable
79999017NTInterchangeable
interchangeable cross-reference
interchangeable
999999K044Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7309DB?
7309DB is a BEARING,BALL,ANNULAR.
What parts can replace 7309DB?
There are 9 known substitutes for 7309DB: 7309DB, 7309BGY2, 7309BEGBY and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7309DB?
7309DB is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-8064. 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