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30307DTL7077 — BEARING,BALL,DUPLEX

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

30307DTL7077: BEARING,BALL,DUPLEX.

The BEARING,BALL,DUPLEX is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_diameter: 1.3778 INCHES MINIMUM AND 1.3780 INCHES MAXIMUM IN, overall_width: 0.8218 INCHES MINIMUM AND 0.8268 INCHES MAXIMUM IN, load_direction: ANGULAR, surface_finish: GROUND, style_designator: UNIVERSAL GROUND FACES, COUNTERBORED OUTER RING, NON-SEPARABLE. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-991-0959, 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
30307DTL7077
NSN: 3110-00-991-0959
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 43334 — GENERAL MOTORS CORP DELCO MORAINE NDH DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter1.3778 INCHES MINIMUM AND 1.3780 INCHES MAXIMUM IN
overall_width0.8218 INCHES MINIMUM AND 0.8268 INCHES MAXIMUM IN
load_directionANGULAR
surface_finishGROUND
style_designatorUNIVERSAL GROUND FACES, COUNTERBORED OUTER RING, NON-SEPARABLE
overall_outside_diameter3.1494 INCHES MINIMUM AND 3.1496 INCHES MAXIMUM IN
bearing_preload_designationLIGHT
internal_fit-up_designationTIGHT
nondefinitive_spec/std_data134 TYPE AND 1 CLASS
retainer_fabrication_methodPRESSED
lubrication_material_document_and_classificationMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
NSN3110-00-991-0959
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 30307DTL7077 · 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
•
INTERNAL FIT-UP DESIGNATION: TIGHT
•
SURFACE FINISH: GROUND
•
BEARING PRELOAD DESIGNATION: LIGHT
•
STYLE DESIGNATOR: UNIVERSAL GROUND FACES, COUNTERBORED OUTER RING, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 3.1494 INCHES MINIMUM AND 3.1496 INCHES MAXIMUM IN
•
NONDEFINITIVE SPEC/STD DATA: 134 TYPE AND 1 CLASS
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODPRESSED
INTERNAL FIT-UP DESIGNATIONTIGHT
SURFACE FINISHGROUND
BEARING PRELOAD DESIGNATIONLIGHT
STYLE DESIGNATORUNIVERSAL GROUND FACES, COUNTERBORED OUTER RING, NON-SEPARABLE
OVERALL WIDTH0.8218 INCHES MINIMUM AND 0.8268 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER3.1494 INCHES MINIMUM AND 3.1496 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA134 TYPE AND 1 CLASS
LOAD DIRECTIONANGULAR
BORE DIAMETER1.3778 INCHES MINIMUM AND 1.3780 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 4
Q30307DTS7088V4Reference document
Same NSN cross-reference
Reference document — Secondary reference
MILB17931Reference document
Same NSN cross-reference
Reference document — Identification reference
30307DT67077Reference document
Same NSN cross-reference
Reference document — Secondary reference
Q30307DTL7088V4Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — mutilation + specific procedure
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FREQUENTLY ASKED QUESTIONS
What is 30307DTL7077?
30307DTL7077 is a BEARING,BALL,DUPLEX.
What parts can replace 30307DTL7077?
There are 4 known substitutes for 30307DTL7077: Q30307DTS7088V4, MILB17931, 30307DT67077 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 30307DTL7077?
30307DTL7077 is cataloged in the U.S. Government catalog under NSN 3110-00-991-0959. 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.