PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 144399
144399 ✓ 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

TRANSFORMER,POWER AUTOTRANSFORME. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, body_length: 2.313 INCHES NOMINAL IN, bore_diameter: 40.00 MILLIMETERS NOMINAL MM, overall_width: 18.0 MILLIMETERS NOMINAL MM, inclosure_type: FULLY INCLOSED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-226-3494, 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
144399
NSN: 3110-00-226-3494
FSC: 3110
CAGE: 79938 — EMERSON ELECTRIC CO U S ELECTRICAL MOTORS DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
body_length2.313 INCHES NOMINAL IN
bore_diameter40.00 MILLIMETERS NOMINAL MM
overall_width18.0 MILLIMETERS NOMINAL MM
inclosure_typeFULLY INCLOSED
load_directionRADIAL
surface_finishGROUND
mounting_methodTHREADED BUSHING SINGLE GROUP
frequency_rating60.0 HERTZ NOMINAL SINGLE COMPONENT
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
nominal_thread_size0.375 INCHES SINGLE GROUP IN
NSN3110-00-226-3494
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 144399 · 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: 80.00 MILLIMETERS NOMINAL MM
•
BORE DIAMETER: 40.00 MILLIMETERS NOMINAL MM
•
INTERNAL FIT-UP DESIGNATION: LOOSE
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
MATERIAL: STEEL OVERALL
•
RETAINER FABRICATION METHOD: PRESSED
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER80.00 MILLIMETERS NOMINAL MM
BORE DIAMETER40.00 MILLIMETERS NOMINAL MM
INTERNAL FIT-UP DESIGNATIONLOOSE
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL OVERALL
RETAINER FABRICATION METHODPRESSED
OVERALL WIDTH18.0 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONABEC NO.1
LOAD DIRECTIONRADIAL
BORE SHAPESTRAIGHT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 32
15943JInterchangeable
interchangeable cross-reference
interchangeable
799130Interchangeable
interchangeable cross-reference
interchangeable
706760Interchangeable
interchangeable cross-reference
interchangeable
03031-50Interchangeable
interchangeable cross-reference
interchangeable
3B4128Interchangeable
interchangeable cross-reference
interchangeable
700098Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 144399?
144399 is a TRANSFORMER,POWER AUTOTRANSFORME.
What parts can replace 144399?
There are 32 known substitutes for 144399: 15943J, 799130, 706760 and 29 more. Substitute compatibility should be verified for your specific system.
Is 144399 still available?
144399 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