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Technical Data Sheet
PartsTable / COMPONENT / 77R3LR1J
77R3LR1J ✓ 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: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 0.1875 INCHES NOMINAL IN, overall_width: 0.1960 INCHES NOMINAL IN, load_direction: RADIAL, surface_finish: GROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-293-9249, 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
77R3LR1J
NSN: 3110-00-293-9249
FSC: 3110
CAGE: 43334 — GENERAL MOTORS CORP DELCO MORAINE NDH DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter0.1875 INCHES NOMINAL IN
overall_width0.1960 INCHES NOMINAL IN
load_directionRADIAL
surface_finishGROUND
shield_quantity2
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
lubrication_materialOIL
overall_outside_diameter0.5000 INCHES NOMINAL IN
internal_fit-up_designationLOOSE
retainer_fabrication_methodPRESSED
NSN3110-00-293-9249
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 77R3LR1J · 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
•
OVERALL OUTSIDE DIAMETER: 0.5000 INCHES NOMINAL IN
•
LOAD DIRECTION: RADIAL
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE
•
INTERNAL FIT-UP DESIGNATION: LOOSE
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
SURFACE FINISH: GROUND
•
SHIELD QUANTITY: 2
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER0.5000 INCHES NOMINAL IN
LOAD DIRECTIONRADIAL
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE
INTERNAL FIT-UP DESIGNATIONLOOSE
STANDARD TOLERANCE DESIGNATIONABEC NO.1
SURFACE FINISHGROUND
SHIELD QUANTITY2
BORE SHAPESTRAIGHT
RETAINER FABRICATION METHODPRESSED
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
48245Interchangeable
interchangeable cross-reference
interchangeable
BMC103Interchangeable
interchangeable cross-reference
interchangeable
48015Interchangeable
interchangeable cross-reference
interchangeable
486937C1Interchangeable
interchangeable cross-reference
interchangeable
641E7631Interchangeable
interchangeable cross-reference
interchangeable
633-178Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 77R3LR1J?
77R3LR1J is a BEARING,BALL,ANNULAR.
What parts can replace 77R3LR1J?
There are 8 known substitutes for 77R3LR1J: 48245, BMC103, 48015 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 77R3LR1J?
77R3LR1J is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-293-9249. 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