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Technical Data Sheet
PartsTable / COMPONENT / 9L311SG
9L311SG ✓ 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 OUTER RING, bore_shape: STRAIGHT, bore_diameter: 55.00 MILLIMETERS NOMINAL MM, overall_width: 29.0 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-155-6280, 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
9L311SG
NSN: 3110-00-155-6280
FSC: 3110
CAGE: 23382 — FWD SEAGRAVE HOLDINGS LP (USA)
SPECIFICATIONS
materialSTEEL OUTER RING
bore_shapeSTRAIGHT
bore_diameter55.00 MILLIMETERS NOMINAL MM
overall_width29.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
features_providedSNAP RING-GROOVE MOUNTING AND MOUNTING GROOVE
overall_outside_diameter120.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
standard_tolerance_designationABEC NO.1
NSN3110-00-155-6280
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 9L311SG · 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
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
BORE DIAMETER: 55.00 MILLIMETERS NOMINAL MM
•
MATERIAL: STEEL BALL
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 120.00 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS (FLIS)
STANDARD TOLERANCE DESIGNATIONABEC NO.1
OVERALL WIDTH29.0 MILLIMETERS NOMINAL MM
BORE DIAMETER55.00 MILLIMETERS NOMINAL MM
MATERIALSTEEL BALL
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL INNER RING
MATERIALSTEEL OUTER RING
OVERALL OUTSIDE DIAMETER120.00 MILLIMETERS NOMINAL MM
INTERNAL FIT-UP DESIGNATIONSTANDARD
LOAD DIRECTIONRADIAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
55031Interchangeable
interchangeable cross-reference
interchangeable
07-244Interchangeable
interchangeable cross-reference
interchangeable
SMB187038Interchangeable
interchangeable cross-reference
interchangeable
525324Interchangeable
interchangeable cross-reference
interchangeable
500266Interchangeable
interchangeable cross-reference
interchangeable
L90Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9L311SG?
9L311SG is a BEARING,BALL,ANNULAR.
What parts can replace 9L311SG?
There are 27 known substitutes for 9L311SG: 55031, 07-244, SMB187038 and 24 more. Substitute compatibility should be verified for your specific system.
Is 9L311SG still available?
9L311SG is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026