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Technical Data Sheet
PartsTable / COMPONENT / JD8251
JD8251 ✓ 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 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, cup_width: 0.6875 INCHES NOMINAL IN, cone_width: 0.8750 INCHES NOMINAL IN, bore_diameter: 1.3125 INCHES NOMINAL IN, overall_width: 0.8750 INCHES NOMINAL IN, standout_width: 0.1875 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-768-0545, 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
JD8251
NSN: 3110-00-768-0545
FSC: 3110
CAGE: 75160 — DEERE & CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width0.6875 INCHES NOMINAL IN
cone_width0.8750 INCHES NOMINAL IN
bore_diameter1.3125 INCHES NOMINAL IN
overall_width0.8750 INCHES NOMINAL IN
standout_width0.1875 INCHES NOMINAL IN
outside_diameter2.6875 INCHES NOMINAL IN
special_featuresM DUTY CLASS SERIES
style_designatorSTRAIGHT BORE, NORMAL ANGLE
cone_corner_radius0.0300 INCHES NOMINAL IN
backface_corner_radius0.0600 INCHES NOMINAL IN
overall_outside_diameter2.6875 INCHES NOMINAL IN
NSN3110-00-768-0545
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: JD8251 · 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
•
MATERIAL: STEEL OVERALL
•
OUTSIDE DIAMETER: 2.6875 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0620 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
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)
STYLE DESIGNATORNORMAL ANGLE
MATERIALSTEEL OVERALL
OUTSIDE DIAMETER2.6875 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0620 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
SPECIAL FEATURESDUTY CLASS M SERIES
OVERALL WIDTH0.6875 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
10114974Interchangeable
interchangeable cross-reference
interchangeable
447544Interchangeable
interchangeable cross-reference
interchangeable
SH24Interchangeable
interchangeable cross-reference
interchangeable
123-1100Interchangeable
interchangeable cross-reference
interchangeable
0163621-00Interchangeable
interchangeable cross-reference
interchangeable
A200248ZInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is JD8251?
JD8251 is a CUP,TAPERED ROLLER BEARING.
What parts can replace JD8251?
There are 17 known substitutes for JD8251: 10114974, 447544, SH24 and 14 more. Substitute compatibility should be verified for your specific system.
Is JD8251 still available?
JD8251 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026