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Technical Data Sheet
PartsTable / COMPONENT / FS55508
FS55508 ✓ 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: 40.00 MILLIMETERS NOMINAL MM, contact_angle: 25.0 DEGREES MAXIMUM, overall_width: 1.1875 INCHES NOMINAL IN, load_direction: ANGULAR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-585-9430, 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
FS55508
NSN: 3110-00-585-9430
FSC: 3110
CAGE: 20760 — EPWORTH MFG CO INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter40.00 MILLIMETERS NOMINAL MM
contact_angle25.0 DEGREES MAXIMUM
overall_width1.1875 INCHES NOMINAL IN
load_directionANGULAR
surface_finishGROUND
shield_quantity1
style_designatorLOADING GROOVE, NON-SEPARABLE
overall_outside_diameter80.00 MILLIMETERS NOMINAL MM
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.1
NSN3110-00-585-9430
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FS55508 · 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
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
STYLE DESIGNATOR: LOADING GROOVE, NON-SEPARABLE
•
MATERIAL: STEEL OVERALL
•
CONTACT ANGLE: 25.0 DEGREES MAXIMUM
•
INTERNAL FIT-UP CONTACT ANGULAR DIRECTION: OUTWARD CONVERGENT
•
LOAD DIRECTION: ANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONABEC NO.1
STYLE DESIGNATORLOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL OVERALL
CONTACT ANGLE25.0 DEGREES MAXIMUM
OVERALL WIDTH1.1875 INCHES NOMINAL IN
INTERNAL FIT-UP CONTACT ANGULAR DIRECTIONOUTWARD CONVERGENT
LOAD DIRECTIONANGULAR
OVERALL OUTSIDE DIAMETER80.00 MILLIMETERS NOMINAL MM
BORE DIAMETER40.00 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
DYN26HInterchangeable
interchangeable cross-reference
interchangeable
ET-13-180Interchangeable
interchangeable cross-reference
interchangeable
5508Interchangeable
interchangeable cross-reference
interchangeable
1783947Interchangeable
interchangeable cross-reference
interchangeable
CW12-847Interchangeable
interchangeable cross-reference
interchangeable
SS0-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FS55508?
FS55508 is a BEARING,BALL,ANNULAR.
What parts can replace FS55508?
There are 26 known substitutes for FS55508: DYN26H, ET-13-180, 5508 and 23 more. Substitute compatibility should be verified for your specific system.
Is FS55508 still available?
FS55508 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