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DF8080 — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

DF8080: BEARING,ROLLER,TAPERED.

The BEARING,ROLLER,TAPERED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, cup_width: 3.3125 INCHES NOMINAL IN, cone_width: 2.2812 INCHES NOMINAL IN, bore_diameter: 4.3750 INCHES NOMINAL IN, overall_width: 4.5625 INCHES NOMINAL IN, standout_width: 0.6250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-775-9051, 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
DF8080
NSN: 3110-00-775-9051
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 35311 — AMERICAN STANDARD INC WESTINGHOUSE AIR BRAKE CO DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width3.3125 INCHES NOMINAL IN
cone_width2.2812 INCHES NOMINAL IN
bore_diameter4.3750 INCHES NOMINAL IN
overall_width4.5625 INCHES NOMINAL IN
standout_width0.6250 INCHES NOMINAL IN
special_featuresWITH CONE SPACER,OIL GROOVE AND FOUR OIL HOLES 0.3125 IN. DIA. EQUALLY IN OD OF CUP IN
style_designatorSTRAIGHT BORE, DOUBLE CUP, SINGLE CONES, STEEP ANGLE
cone_corner_radius0.1400 INCHES NOMINAL IN
backface_corner_radius0.0620 INCHES NOMINAL IN
overall_outside_diameter8.4375 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-775-9051
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: DF8080 · 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
•
CUP WIDTH: 3.3125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT BORE, DOUBLE CUP, SINGLE CONES, STEEP ANGLE
•
OVERALL OUTSIDE DIAMETER: 8.4375 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0620 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.1400 INCHES NOMINAL IN
•
STANDOUT WIDTH: 0.6250 INCHES NOMINAL IN
•
CONE WIDTH: 2.2812 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS
CUP WIDTH3.3125 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, DOUBLE CUP, SINGLE CONES, STEEP ANGLE
OVERALL WIDTH4.5625 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER8.4375 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0620 INCHES NOMINAL IN
CONE CORNER RADIUS0.1400 INCHES NOMINAL IN
STANDOUT WIDTH0.6250 INCHES NOMINAL IN
CONE WIDTH2.2812 INCHES NOMINAL IN
SPECIAL FEATURESWITH CONE SPACER,OIL GROOVE AND FOUR OIL HOLES 0.3125 IN. DIA. EQUALLY IN OD OF CUP IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
SUBSTITUTES & CROSS-REFERENCES 1
450544Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is DF8080?
DF8080 is a BEARING,ROLLER,TAPERED.
What parts can replace DF8080?
There is 1 known substitute for DF8080: 450544. Substitute compatibility should be verified for your specific system.
What is the NSN for DF8080?
DF8080 is cataloged in the U.S. Government catalog under NSN 3110-00-775-9051. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.