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Technical Data Sheet
PartsTable / COMPONENT / 55503X1CJ
55503X1CJ ✓ 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: 17.00 MILLIMETERS NOMINAL MM, contact_angle: 25.0 DEGREES MAXIMUM, overall_width: 0.6875 INCHES NOMINAL IN, load_direction: ANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-198-1638, 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
55503X1CJ
NSN: 3110-00-198-1638
FSC: 3110
CAGE: 43334 — GENERAL MOTORS CORP DELCO MORAINE NDH DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter17.00 MILLIMETERS NOMINAL MM
contact_angle25.0 DEGREES MAXIMUM
overall_width0.6875 INCHES NOMINAL IN
load_directionANGULAR
surface_finishGROUND
shield_quantity2
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
lubrication_materialSILICON
overall_outside_diameter40.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
NSN3110-00-198-1638
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 55503X1CJ · 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: 40.00 MILLIMETERS NOMINAL MM
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
CONTACT ANGLE: 25.0 DEGREES MAXIMUM
•
RETAINER FABRICATION METHOD: PRESSED
•
SHIELD QUANTITY: 2
•
INTERNAL FIT-UP DESIGNATION: STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER40.00 MILLIMETERS NOMINAL MM
OVERALL WIDTH0.6875 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONABEC NO.1
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
CONTACT ANGLE25.0 DEGREES MAXIMUM
RETAINER FABRICATION METHODPRESSED
SHIELD QUANTITY2
INTERNAL FIT-UP DESIGNATIONSTANDARD
STANDARD TOLERANCE DESIGNATIONABEC NO.1
LUBRICATION MATERIALSILICON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
110372Interchangeable
interchangeable cross-reference
interchangeable
372372C91Interchangeable
interchangeable cross-reference
interchangeable
55503Interchangeable
interchangeable cross-reference
interchangeable
55503X1MILG3278AInterchangeable
interchangeable cross-reference
interchangeable
55503X1E9Interchangeable
interchangeable cross-reference
interchangeable
SM-B-187084Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55503X1CJ?
55503X1CJ is a BEARING,BALL,ANNULAR.
What parts can replace 55503X1CJ?
There are 11 known substitutes for 55503X1CJ: 110372, 372372C91, 55503 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 55503X1CJ?
55503X1CJ is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-198-1638. 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