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HR 30205 J — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

HR 30205 J: 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 bore_diameter: 25.0 MILLIMETERS NOMINAL MM, overall_width: 16.25 MILLIMETERS NOMINAL MM, style_designator: CYLINDRICAL TWO LIP INNER RING W/CENTERED ROLLER GUIDE, CYLINDRICAL OUTER RING SEPARABLE, end_item_identification: TANK, COMBAT, FULL TRACKED, overall_outside_diameter: 52.0 MILLIMETERS NOMINAL MM, part_name_assigned_by_controlling_agency: TAPERED ROLLER BEARING. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-710-7254, 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
HR 30205 J
NSN: 3110-01-710-7254
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 53035 — NSK CORP BEARING DIV (USA)
SPECIFICATIONS
bore_diameter25.0 MILLIMETERS NOMINAL MM
overall_width16.25 MILLIMETERS NOMINAL MM
style_designatorCYLINDRICAL TWO LIP INNER RING W/CENTERED ROLLER GUIDE, CYLINDRICAL OUTER RING SEPARABLE
end_item_identificationTANK, COMBAT, FULL TRACKED
overall_outside_diameter52.0 MILLIMETERS NOMINAL MM
part_name_assigned_by_controlling_agencyTAPERED ROLLER BEARING
NSN3110-01-710-7254
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: HR 30205 J · 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
•
STYLE DESIGNATOR: CYLINDRICAL TWO LIP INNER RING W/CENTERED ROLLER GUIDE, CYLINDRICAL OUTER RING SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 52.0 MILLIMETERS NOMINAL MM
•
BORE DIAMETER: 25.0 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
STYLE DESIGNATORCYLINDRICAL TWO LIP INNER RING W/CENTERED ROLLER GUIDE, CYLINDRICAL OUTER RING SEPARABLE
OVERALL WIDTH16.25 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER52.0 MILLIMETERS NOMINAL MM
PART NAME ASSIGNED BY CONTROLLING AGENCYTAPERED ROLLER BEARING
END ITEM IDENTIFICATIONTANK, COMBAT, FULL TRACKED
BORE DIAMETER25.0 MILLIMETERS NOMINAL MM
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HR 30205 J?
HR 30205 J is a BEARING,ROLLER,TAPERED.
What is the NSN for HR 30205 J?
HR 30205 J is cataloged in the U.S. Government catalog under NSN 3110-01-710-7254. 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.