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Technical Data Sheet
PartsTable / COMPONENT / 45285-90011
45285-90011 ✓ 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,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: 2.3750 INCHES NOMINAL IN, cone_width: 2.4376 INCHES NOMINAL IN, overall_width: 2.3750 INCHES NOMINAL IN, standout_width: 0.1250 INCHES NOMINAL IN, outside_diameter: 2.0000 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-573-7901, 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
45285-90011
NSN: 3110-00-573-7901
FSC: 3110
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width2.3750 INCHES NOMINAL IN
cone_width2.4376 INCHES NOMINAL IN
overall_width2.3750 INCHES NOMINAL IN
standout_width0.1250 INCHES NOMINAL IN
outside_diameter2.0000 INCHES NOMINAL IN
special_featuresWITH CUP SPACER
features_providedLUBRICATION HOLE AND LUBRICATION GROOVE
cone_corner_radius0.0930 INCHES NOMINAL IN
overall_outside_diameter4.1250 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-573-7901
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 45285-90011 · 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
•
CONE CORNER RADIUS: 0.0930 INCHES NOMINAL IN
•
FEATURES PROVIDED: LUBRICATION HOLE AND LUBRICATION GROOVE
•
RETAINER FABRICATION METHOD: PRESSED
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
CONE WIDTH: 2.4376 INCHES NOMINAL IN
•
CUP WIDTH: 2.3750 INCHES NOMINAL IN
•
OVERALL OUTSIDE DIAMETER: 4.1250 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 (FLIS)
OVERALL WIDTH2.3750 INCHES NOMINAL IN
CONE CORNER RADIUS0.0930 INCHES NOMINAL IN
FEATURES PROVIDEDLUBRICATION HOLE AND LUBRICATION GROOVE
RETAINER FABRICATION METHODPRESSED
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
CONE WIDTH2.4376 INCHES NOMINAL IN
CUP WIDTH2.3750 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER4.1250 INCHES NOMINAL IN
STANDOUT WIDTH0.1250 INCHES NOMINAL IN
OUTSIDE DIAMETER2.0000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
8881Interchangeable
interchangeable cross-reference
interchangeable
294751Interchangeable
interchangeable cross-reference
interchangeable
5365PL0942070Interchangeable
interchangeable cross-reference
interchangeable
137073Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQA200-3Interchangeable
interchangeable cross-reference
interchangeable
10-30466-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 45285-90011?
45285-90011 is a BEARING,ROLLER,TAPERED.
What parts can replace 45285-90011?
There are 21 known substitutes for 45285-90011: 8881, 294751, 5365PL0942070 and 18 more. Substitute compatibility should be verified for your specific system.
Is 45285-90011 still available?
45285-90011 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026