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Technical Data Sheet
PartsTable / COMPONENT / 87503LBC
87503LBC ✓ 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: RUBBER SYNTHETIC SEAL, bore_shape: STRAIGHT, bore_diameter: 17.00 MILLIMETERS NOMINAL MM, overall_width: 0.5630 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 3110-00-184-0049, 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
87503LBC
NSN: 3110-00-184-0049
FSC: 3110
CAGE: 43334 — GENERAL MOTORS CORP DELCO MORAINE NDH DIV (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEAL
bore_shapeSTRAIGHT
bore_diameter17.00 MILLIMETERS NOMINAL MM
overall_width0.5630 INCHES NOMINAL IN
seal_quantity1
load_directionRADIAL
surface_finishGROUND
shield_quantity1
inner_ring_width0.5380 INCHES NOMINAL IN
outer_ring_width0.4720 INCHES NOMINAL IN
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
bearing_seal_typeCONTACT
NSN3110-00-184-0049
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 87503LBC · 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
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
INTERNAL FIT-UP DESIGNATION: LOOSE
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.3
•
SEAL QUANTITY: 1
•
SURFACE FINISH: GROUND
•
LOAD DIRECTION: RADIAL
•
RETAINER FABRICATION METHOD: PRESSED
•
INNER RING WIDTH: 0.5380 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
INTERNAL FIT-UP DESIGNATIONLOOSE
STANDARD TOLERANCE DESIGNATIONABEC NO.3
SEAL QUANTITY1
SURFACE FINISHGROUND
LOAD DIRECTIONRADIAL
RETAINER FABRICATION METHODPRESSED
INNER RING WIDTH0.5380 INCHES NOMINAL IN
SHIELD QUANTITY1
OUTER RING WIDTH0.4720 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
NO-NIKInterchangeable
interchangeable cross-reference
interchangeable
NN010Interchangeable
interchangeable cross-reference
interchangeable
CLAUSS NN010Interchangeable
interchangeable cross-reference
interchangeable
712128Interchangeable
interchangeable cross-reference
interchangeable
2712128-1Interchangeable
interchangeable cross-reference
interchangeable
118808Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 87503LBC?
87503LBC is a BEARING,BALL,ANNULAR.
What parts can replace 87503LBC?
There are 10 known substitutes for 87503LBC: NO-NIK, NN010, CLAUSS NN010 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 87503LBC?
87503LBC is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-184-0049. 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