PartsTable
Technical Data Sheet
3278918 ✓ 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, hole_type: DRILLED, bore_shape: STRAIGHT, head_style: HEXAGON, grip_length: 3.069 INCHES NOMINAL IN, head_height: 0.157 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-144-8498, 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
3278918
NSN: 3110-00-144-8498
FSC: 3110
CAGE: 55380 — HATCH & KIRK, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_typeDRILLED
bore_shapeSTRAIGHT
head_styleHEXAGON
grip_length3.069 INCHES NOMINAL IN
head_height0.157 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN
thread_class3A A
bore_diameter15.00 MILLIMETERS NOMINAL MM
grip_diameter0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
hole_diameter0.070 INCHES NOMINAL IN
hole_quantity3
overall_width11.00 MILLIMETERS NOMINAL MM
NSN3110-00-144-8498
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 3278918 · 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: 32.00 MILLIMETERS NOMINAL MM
BORE DIAMETER: 15.00 MILLIMETERS NOMINAL MM
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
NONDEFINITIVE SPEC/STD DATA: 111 TYPE AND 1 CLASS AND 00 GRADE
MATERIAL: STEEL OVERALL
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
LOAD DIRECTION: RADIAL
SURFACE FINISH: GROUND
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER32.00 MILLIMETERS NOMINAL MM
BORE DIAMETER15.00 MILLIMETERS NOMINAL MM
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
NONDEFINITIVE SPEC/STD DATA111 TYPE AND 1 CLASS AND 00 GRADE
MATERIALSTEEL OVERALL
STANDARD TOLERANCE DESIGNATIONABEC NO.1
LOAD DIRECTIONRADIAL
SURFACE FINISHGROUND
OVERALL WIDTH11.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
13846Interchangeable
interchangeable cross-reference
interchangeable
100576Interchangeable
interchangeable cross-reference
interchangeable
920011-20Interchangeable
interchangeable cross-reference
interchangeable
202KInterchangeable
interchangeable cross-reference
interchangeable
250KInterchangeable
interchangeable cross-reference
interchangeable
200Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3278918?
3278918 is a BEARING,BALL,ANNULAR.
What parts can replace 3278918?
There are 30 known substitutes for 3278918: 13846, 100576, 920011-20 and 27 more. Substitute compatibility should be verified for your specific system.
Is 3278918 still available?
3278918 is currently cancelled.
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