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Technical Data Sheet
PartsTable / COMPONENT / 912146-2
912146-2 ✓ 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 COMP 440C BALL, bore_shape: STRAIGHT, bore_diameter: 25.0 MILLIMETERS NOMINAL MM, overall_width: 15.0 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 3110-01-173-2897, 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
912146-2
NSN: 3110-01-173-2897
FSC: 3110
CAGE: 3B150 — RAYTHEON COMPANY DBA RAYTHEON CO (USA)
SPECIFICATIONS
materialSTEEL COMP 440C BALL
bore_shapeSTRAIGHT
bore_diameter25.0 MILLIMETERS NOMINAL MM
overall_width15.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
bearing_preload_rating555.0 POUNDS MINIMUM AND 2630.0 POUNDS MAXIMUM LBS
functional_descriptionUSED ON DRIVE,ANTENNA,ELEVATION
type/model_designationAN/SPS-49
end_item_identification5840-01-017-8558 RADAR SET
overall_outside_diameter52.0 MILLIMETERS NOMINAL MM
NSN3110-01-173-2897
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 912146-2 · 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
•
SURFACE FINISH: GROUND
•
FUNCTIONAL DESCRIPTION: USED ON DRIVE,ANTENNA,ELEVATION
•
OVERALL OUTSIDE DIAMETER: 52.0 MILLIMETERS NOMINAL MM
•
TYPE/MODEL DESIGNATION: AN/SPS-49
•
MATERIAL: STEEL COMP 440C BALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI E52100 NATIONAL SPEC SINGLE MATERIAL RESPONSE OUTER RING
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISHGROUND
FUNCTIONAL DESCRIPTIONUSED ON DRIVE,ANTENNA,ELEVATION
OVERALL OUTSIDE DIAMETER52.0 MILLIMETERS NOMINAL MM
TYPE/MODEL DESIGNATIONAN/SPS-49
MATERIALSTEEL COMP 440C BALL
MATERIAL DOCUMENT AND CLASSIFICATIONAISI E52100 NATIONAL SPEC SINGLE MATERIAL RESPONSE OUTER RING
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 1010 NATIONAL SPEC SINGLE MATERIAL RESPONSE CAGE
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL COMP E52100 INNER RING
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 440C NATIONAL SPEC SINGLE MATERIAL RESPONSE BALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
80-010Interchangeable
interchangeable cross-reference
interchangeable
8525010.001Interchangeable
interchangeable cross-reference
interchangeable
55310Interchangeable
interchangeable cross-reference
interchangeable
UU-P-221Interchangeable
interchangeable cross-reference
interchangeable
25SInterchangeable
interchangeable cross-reference
interchangeable
205SInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 912146-2?
912146-2 is a BEARING,BALL,ANNULAR.
What parts can replace 912146-2?
There are 16 known substitutes for 912146-2: 80-010, 8525010.001, 55310 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 912146-2?
912146-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-173-2897. 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