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Technical Data Sheet
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77039X1C — Technical Data Sheet

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— · 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: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 9.00 MILLIMETERS NOMINAL MM, overall_width: 8.0 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the Federal Logistics Information System under NSN 3110-00-144-8865, 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
77039X1C
NSN: 3110-00-144-8865
FSC: 3110
CAGE: 43334 — GENERAL MOTORS CORP DELCO MORAINE NDH DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter9.00 MILLIMETERS NOMINAL MM
overall_width8.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
shield_quantity2
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
lubrication_materialGREASE
overall_outside_diameter26.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
nondefinitive_spec/std_data111 TYPE AND 3 CLASS AND 00 GRADE
NSN3110-00-144-8865
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 77039X1C · 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
•
BORE DIAMETER: 9.00 MILLIMETERS NOMINAL MM
•
LUBRICATION MATERIAL: GREASE
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
MATERIAL: STEEL OVERALL
•
NONDEFINITIVE SPEC/STD DATA: 111 TYPE AND 3 CLASS AND 00 GRADE
•
OVERALL OUTSIDE DIAMETER: 26.00 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
BORE DIAMETER9.00 MILLIMETERS NOMINAL MM
LUBRICATION MATERIALGREASE
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL OVERALL
OVERALL WIDTH8.0 MILLIMETERS NOMINAL MM
NONDEFINITIVE SPEC/STD DATA111 TYPE AND 3 CLASS AND 00 GRADE
OVERALL OUTSIDE DIAMETER26.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONABEC NO.1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
77039InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
158044InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LM4250H/883BInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
4048671InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
H-791InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
14663InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 77039X1C?
77039X1C is a BEARING,BALL,ANNULAR.
What parts can replace 77039X1C?
There are 20 known substitutes for 77039X1C: 77039, 158044, LM4250H/883B and 17 more. Substitute compatibility should be verified for your specific system.
Is 77039X1C still available?
77039X1C is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026