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550458 AND 550459 — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

550458 AND 550459: 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: 16.670 MILLIMETERS NOMINAL MM, cone_width: 21.433 MILLIMETERS NOMINAL MM, bore_diameter: 28.575 MILLIMETERS NOMINAL MM, overall_width: 21.433 MILLIMETERS NOMINAL MM, standout_width: 4.763 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-040-2072, 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
550458 AND 550459
NSN: 3110-01-040-2072
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 72447 — DANA COMMERCIAL VEHICLE MANUFACTURING, LLC DBA DANA COMMERCIAL VEHICLE PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width16.670 MILLIMETERS NOMINAL MM
cone_width21.433 MILLIMETERS NOMINAL MM
bore_diameter28.575 MILLIMETERS NOMINAL MM
overall_width21.433 MILLIMETERS NOMINAL MM
standout_width4.763 MILLIMETERS NOMINAL MM
style_designatorSTRAIGHT BORE, NORMAL ANGLE
cone_corner_radius1.5 MILLIMETERS NOMINAL MM
backface_corner_radius1.5 MILLIMETERS NOMINAL MM
overall_outside_diameter64.292 MILLIMETERS NOMINAL MM
retainer_fabrication_methodPRESSED
standard_tolerance_designationAFBMA CLASS 2
NSN3110-01-040-2072
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 550458 AND 550459 · 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
•
RETAINER FABRICATION METHOD: PRESSED
•
CUP WIDTH: 16.670 MILLIMETERS NOMINAL MM
•
STYLE DESIGNATOR: STRAIGHT BORE, NORMAL ANGLE
•
OVERALL OUTSIDE DIAMETER: 64.292 MILLIMETERS NOMINAL MM
•
BACKFACE CORNER RADIUS: 1.5 MILLIMETERS NOMINAL MM
•
CONE CORNER RADIUS: 1.5 MILLIMETERS NOMINAL MM
•
STANDOUT WIDTH: 4.763 MILLIMETERS NOMINAL MM
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
RETAINER FABRICATION METHODPRESSED
CUP WIDTH16.670 MILLIMETERS NOMINAL MM
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
OVERALL WIDTH21.433 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER64.292 MILLIMETERS NOMINAL MM
BACKFACE CORNER RADIUS1.5 MILLIMETERS NOMINAL MM
CONE CORNER RADIUS1.5 MILLIMETERS NOMINAL MM
STANDOUT WIDTH4.763 MILLIMETERS NOMINAL MM
CONE WIDTH21.433 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 6
706014XReference document
Same NSN cross-reference
Reference document — Secondary reference
AA59649-074Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
A-A-59649Reference document
Same NSN cross-reference
Reference document — Identification reference
M86647 AND M86610Reference document
Same NSN cross-reference
Reference document — Secondary reference
550458-550459Reference document
Same NSN cross-reference
Reference document — Secondary reference
M86647M86610Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 550458 AND 550459?
550458 AND 550459 is a BEARING,ROLLER,TAPERED.
What parts can replace 550458 AND 550459?
There are 6 known substitutes for 550458 AND 550459: 706014X, AA59649-074, A-A-59649 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 550458 AND 550459?
550458 AND 550459 is cataloged in the U.S. Government catalog under NSN 3110-01-040-2072. 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.