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Technical Data Sheet
PartsTable / COMPONENT / A0203WBPKA
A0203WBPKA ✓ 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,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL INNER RING, bore_shape: STRAIGHT, bore_diameter: 17.0 MILLIMETERS NOMINAL MM, overall_width: 12.0 MILLIMETERS NOMINAL MM, surface_finish: GROUND, locating_feature: NONLOCATING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-640-8960, 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
A0203WBPKA
NSN: 3110-00-640-8960
FSC: 3110
CAGE: 43334 — GENERAL MOTORS CORP DELCO MORAINE NDH DIV (USA)
SPECIFICATIONS
materialSTEEL INNER RING
bore_shapeSTRAIGHT
bore_diameter17.0 MILLIMETERS NOMINAL MM
overall_width12.0 MILLIMETERS NOMINAL MM
surface_finishGROUND
locating_featureNONLOCATING
style_designatorSINGLE ROW, NON-LOCATING, CYLINDRICAL INNER RING, TWO LIP OUTER RING, SEPARABLE
internal_clearance0.0002 INCHES MINIMUM RADIAL AND 0.0006 INCHES MAXIMUM RADIAL IN
overall_outside_diameter40.0 MILLIMETERS NOMINAL MM
retainer_fabrication_methodMACHINED
standard_tolerance_designationRBEC NO.5
NSN3110-00-640-8960
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A0203WBPKA · 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 SHAPE: STRAIGHT
•
RETAINER FABRICATION METHOD: MACHINED
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.5
•
INTERNAL CLEARANCE: 0.0002 INCHES MINIMUM RADIAL AND 0.0006 INCHES MAXIMUM RADIAL IN
•
MATERIAL: STEEL OUTER RING
TECHNICAL CHARACTERISTICS (FLIS)
BORE SHAPESTRAIGHT
RETAINER FABRICATION METHODMACHINED
STANDARD TOLERANCE DESIGNATIONRBEC NO.5
INTERNAL CLEARANCE0.0002 INCHES MINIMUM RADIAL AND 0.0006 INCHES MAXIMUM RADIAL IN
MATERIALSTEEL OUTER RING
MATERIALSTEEL INNER RING
MATERIALCOPPER ALLOY RETAINER
MATERIALSTEEL ROLLER
STYLE DESIGNATORSINGLE ROW, NON-LOCATING, CYLINDRICAL INNER RING, TWO LIP OUTER RING, SEPARABLE
OVERALL WIDTH12.0 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
4D7855Interchangeable
interchangeable cross-reference
interchangeable
146372Interchangeable
interchangeable cross-reference
interchangeable
601616Interchangeable
interchangeable cross-reference
interchangeable
CA10418 PIECE 3Interchangeable
interchangeable cross-reference
interchangeable
6297-1Interchangeable
interchangeable cross-reference
interchangeable
6297-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A0203WBPKA?
A0203WBPKA is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace A0203WBPKA?
There are 7 known substitutes for A0203WBPKA: 4D7855, 146372, 601616 and 4 more. Substitute compatibility should be verified for your specific system.
Is A0203WBPKA still available?
A0203WBPKA 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: July 2026