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Technical Data Sheet
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845112302 — Technical Data Sheet

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— · 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 CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, overall_width: 0.5000 INCHES NOMINAL IN, outside_diameter: 3.3750 INCHES NOMINAL IN, style_designator: NORMAL ANGLE, backface_corner_radius: 0.0600 INCHES NOMINAL IN, standard_tolerance_designation: AFBMA CLASS 2. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3110-00-100-0530, 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
845112302
NSN: 3110-00-100-0530
FSC: 3110
CAGE: 09605 — BOMAG USA SUB OF UNITED DOMINION INDUSTRIES LTD (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.5000 INCHES NOMINAL IN
outside_diameter3.3750 INCHES NOMINAL IN
style_designatorNORMAL ANGLE
backface_corner_radius0.0600 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-100-0530
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 845112302 · 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: NORMAL ANGLE
•
BACKFACE CORNER RADIUS: 0.0600 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
•
OUTSIDE DIAMETER: 3.3750 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
STYLE DESIGNATORNORMAL ANGLE
OVERALL WIDTH0.5000 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0600 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
OUTSIDE DIAMETER3.3750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
278-1775-00InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
X509InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
383-6InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
48705InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2-1097InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
49530InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 845112302?
845112302 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 845112302?
There are 27 known substitutes for 845112302: 278-1775-00, X509, 383-6 and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 845112302?
845112302 is cataloged in the Federal Logistics Information System under NSN 3110-00-100-0530. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026