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Technical Data Sheet
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H20311 ✓ 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: 55.00 MILLIMETERS NOMINAL MM, contact_angle: 25.0 DEGREES MAXIMUM, overall_width: 58.0 MILLIMETERS NOMINAL MM, load_direction: ANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-151-8286, 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
H20311
NSN: 3110-00-151-8286
FSC: 3110
CAGE: 16712 — SIEMENS ENERGY, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter55.00 MILLIMETERS NOMINAL MM
contact_angle25.0 DEGREES MAXIMUM
overall_width58.0 MILLIMETERS NOMINAL MM
load_directionANGULAR
surface_finishGROUND
style_designatorCOUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING
overall_outside_diameter120.00 MILLIMETERS NOMINAL MM
bearing_preload_designationLIGHT
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.3
NSN3110-00-151-8286
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: H20311 · 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
•
MATERIAL: STEEL OVERALL
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.3
•
BORE DIAMETER: 55.00 MILLIMETERS NOMINAL MM
•
BEARING PRELOAD DESIGNATION: LIGHT
•
LOAD DIRECTION: ANGULAR
•
STYLE DESIGNATOR: COUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING
•
SURFACE FINISH: GROUND
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
STANDARD TOLERANCE DESIGNATIONABEC NO.3
BORE DIAMETER55.00 MILLIMETERS NOMINAL MM
OVERALL WIDTH58.0 MILLIMETERS NOMINAL MM
BEARING PRELOAD DESIGNATIONLIGHT
LOAD DIRECTIONANGULAR
STYLE DESIGNATORCOUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER120.00 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
319696-552Interchangeable
interchangeable cross-reference
interchangeable
700179Interchangeable
interchangeable cross-reference
interchangeable
20311Interchangeable
interchangeable cross-reference
interchangeable
SG2570PC90Interchangeable
Same NIIN cross-reference
interchangeable
H20311DFL3AInterchangeable
Same NIIN cross-reference
interchangeable
SG2572PC90Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H20311?
H20311 is a BEARING,BALL,ANNULAR.
What parts can replace H20311?
There are 7 known substitutes for H20311: 319696-552, 700179, 20311 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H20311?
H20311 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-151-8286. 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