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Technical Data Sheet
PartsTable / COMPONENT / M555
M555 ✓ 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 special_features: 2 BUSHING INCLUDED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-155-6259, 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
M555
NSN: 3110-00-155-6259
FSC: 3110
CAGE: 61208 — TWIN DISC, INCORPORATED DBA TWIN DISC MID-ATLANTIC (USA)
SPECIFICATIONS
special_features2 BUSHING INCLUDED
NSN3110-00-155-6259
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: M555 · 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: 90.0 MILLIMETERS NOMINAL MM
•
LOAD DIRECTION: RADIAL
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
SHIELD QUANTITY: 2
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER90.0 MILLIMETERS NOMINAL MM
LOAD DIRECTIONRADIAL
INTERNAL FIT-UP DESIGNATIONSTANDARD
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
LOAD DIRECTIONRADIAL
SHIELD QUANTITY2
BORE SHAPESTRAIGHT
RETAINER FABRICATION METHODPRESSED
STANDARD TOLERANCE DESIGNATIONABEC NO.1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
S072077885Interchangeable
interchangeable cross-reference
interchangeable
77510Interchangeable
interchangeable cross-reference
interchangeable
503477885Interchangeable
interchangeable cross-reference
interchangeable
19340-3AInterchangeable
interchangeable cross-reference
interchangeable
243273Interchangeable
interchangeable cross-reference
interchangeable
4010-304-022Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M555?
M555 is a BEARING,BALL,ANNULAR.
What parts can replace M555?
There are 29 known substitutes for M555: S072077885, 77510, 503477885 and 26 more. Substitute compatibility should be verified for your specific system.
Is M555 still available?
M555 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