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Technical Data Sheet
PartsTable / COMPONENT / 108W
108W ✓ 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 BALL, bore_shape: STRAIGHT, bore_diameter: 40.00 MILLIMETERS NOMINAL MM, overall_width: 11.0 MILLIMETERS NOMINAL MM, 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 3110-00-155-6712, 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
108W
NSN: 3110-00-155-6712
FSC: 3110
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialSTEEL BALL
bore_shapeSTRAIGHT
bore_diameter40.00 MILLIMETERS NOMINAL MM
overall_width11.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
style_designatorLOADING GROOVE, NON-SEPARABLE
overall_outside_diameter8.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
standard_tolerance_designationABEC NO.1
NSN3110-00-155-6712
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 108W · 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
•
LOAD DIRECTION: RADIAL
•
STYLE DESIGNATOR: LOADING GROOVE, NON-SEPARABLE
•
MATERIAL: STEEL INNER RING
•
SURFACE FINISH: GROUND
•
INTERNAL FIT-UP DESIGNATION: STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
LOAD DIRECTIONRADIAL
STYLE DESIGNATORLOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL INNER RING
MATERIALSTEEL OUTER RING
MATERIALSTEEL BALL
OVERALL WIDTH11.0 MILLIMETERS NOMINAL MM
SURFACE FINISHGROUND
INTERNAL FIT-UP DESIGNATIONSTANDARD
OVERALL OUTSIDE DIAMETER8.00 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONABEC NO.1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
IB-454-3-4INInterchangeable
interchangeable cross-reference
interchangeable
50628Interchangeable
interchangeable cross-reference
interchangeable
96Interchangeable
interchangeable cross-reference
interchangeable
108AInterchangeable
interchangeable cross-reference
interchangeable
WWV51Interchangeable
interchangeable cross-reference
interchangeable
D172139Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 108W?
108W is a BEARING,BALL,ANNULAR.
What parts can replace 108W?
There are 21 known substitutes for 108W: IB-454-3-4IN, 50628, 96 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 108W?
108W is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-155-6712. 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