PartsTable
Technical Data Sheet
D78-944-27RAPC15 ✓ 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: RUBBER SYNTHETIC SEAL, bore_shape: STRAIGHT, bore_diameter: 2.3620 INCHES MINIMUM AND 2.3622 INCHES MAXIMUM IN, overall_width: 2.1230 INCHES MINIMUM AND 2.1250 INCHES MAXIMUM IN, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-992-1009, 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
D78-944-27RAPC15
NSN: 3110-00-992-1009
FSC: 3110
CAGE: 63743 — WARD LEONARD CT LLC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEAL
bore_shapeSTRAIGHT
bore_diameter2.3620 INCHES MINIMUM AND 2.3622 INCHES MAXIMUM IN
overall_width2.1230 INCHES MINIMUM AND 2.1250 INCHES MAXIMUM IN
seal_quantity2
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
bearing_seal_typeLIPS TURNED OUTWARDLY
internal_clearance0.0007 INCHES MINIMUM RADIAL AND 0.0011 INCHES MAXIMUM RADIAL IN
lubrication_materialGREASE
overall_outside_diameter5.1179 INCHES MINIMUM AND 5.1181 INCHES MAXIMUM IN
NSN3110-00-992-1009
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: D78-944-27RAPC15 · 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
SEAL QUANTITY: 2
OVERALL OUTSIDE DIAMETER: 5.1179 INCHES MINIMUM AND 5.1181 INCHES MAXIMUM IN
BEARING SEAL TYPE: LIPS TURNED OUTWARDLY
RETAINER FABRICATION METHOD: PRESSED
LUBRICATION MATERIAL: GREASE
BORE SHAPE: STRAIGHT
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
SEAL QUANTITY2
OVERALL WIDTH2.1230 INCHES MINIMUM AND 2.1250 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER5.1179 INCHES MINIMUM AND 5.1181 INCHES MAXIMUM IN
BEARING SEAL TYPELIPS TURNED OUTWARDLY
RETAINER FABRICATION METHODPRESSED
LUBRICATION MATERIALGREASE
BORE SHAPESTRAIGHT
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
SURFACE FINISHGROUND
LOAD DIRECTIONRADIAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
S2883Interchangeable
interchangeable cross-reference
interchangeable
T58PC43Interchangeable
interchangeable cross-reference
interchangeable
T50PC43Interchangeable
interchangeable cross-reference
interchangeable
M17931-C018Interchangeable
Same NIIN cross-reference
interchangeable
S3612E100Interchangeable
Same NIIN cross-reference
interchangeable
312SZZCNT3Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D78-944-27RAPC15?
D78-944-27RAPC15 is a BEARING,BALL,ANNULAR.
What parts can replace D78-944-27RAPC15?
There are 9 known substitutes for D78-944-27RAPC15: S2883, T58PC43, T50PC43 and 6 more. Substitute compatibility should be verified for your specific system.
Is D78-944-27RAPC15 still available?
D78-944-27RAPC15 is currently cancelled.
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