PartsTable
Technical Data Sheet
X378 ✓ 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: 20.00 MILLIMETERS NOMINAL MM, overall_width: 14.0 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-144-9004, 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
X378
NSN: 3110-00-144-9004
FSC: 3110
CAGE: 16760 — CRYOGENIC EQUIPMENT INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter20.00 MILLIMETERS NOMINAL MM
overall_width14.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
shield_quantity1
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
features_providedSNAP RING-GROOVE MOUNTING AND MOUNTING GROOVE
lubrication_materialGREASE
end_item_identificationLOGISTICS SUPPORT VESSEL
overall_outside_diameter47.00 MILLIMETERS NOMINAL MM
NSN3110-00-144-9004
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: X378 · 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
MATERIAL: STEEL OVERALL
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
BORE SHAPE: STRAIGHT
SURFACE FINISH: GROUND
LUBRICATION MATERIAL: GREASE
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: BEACON 325,FSCM 29700 MFR REF SINGLE MATERIAL RESPONSE
BORE DIAMETER: 0.7874 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STANDARD TOLERANCE DESIGNATIONABEC NO.1
MATERIALSTEEL OVERALL
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
BORE SHAPESTRAIGHT
SURFACE FINISHGROUND
LUBRICATION MATERIALGREASE
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONBEACON 325,FSCM 29700 MFR REF SINGLE MATERIAL RESPONSE
BORE DIAMETER0.7874 INCHES NOMINAL IN
SHIELD QUANTITY1
OVERALL OUTSIDE DIAMETER1.8504 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
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GS550H08-5Interchangeable
interchangeable cross-reference
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CL-43-SHSInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is X378?
X378 is a BEARING,BALL,ANNULAR.
What parts can replace X378?
There are 28 known substitutes for X378: 4318P, 4318, 4308 and 25 more. Substitute compatibility should be verified for your specific system.
Is X378 still available?
X378 is currently cancelled.
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