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JD9138 — CUP,TAPERED ROLLER BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

JD9138: CUP,TAPERED ROLLER BEARING.

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: 1.2402 INCHES NOMINAL IN, outside_diameter: 140.00 MILLIMETERS NOMINAL MM, style_designator: NORMAL ANGLE, backface_corner_radius: 0.1000 INCHES NOMINAL IN, standard_tolerance_designation: AFBMA CLASS 4. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-075-7215, 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
JD9138
NSN: 3110-01-075-7215
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 75160 — DEERE & CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width1.2402 INCHES NOMINAL IN
outside_diameter140.00 MILLIMETERS NOMINAL MM
style_designatorNORMAL ANGLE
backface_corner_radius0.1000 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 4
NSN3110-01-075-7215
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: JD9138 · 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
•
OUTSIDE DIAMETER: 140.00 MILLIMETERS NOMINAL MM
•
BACKFACE CORNER RADIUS: 0.1000 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 4
•
MATERIAL: STEEL OVERALL
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 WIDTH1.2402 INCHES NOMINAL IN
OUTSIDE DIAMETER140.00 MILLIMETERS NOMINAL MM
BACKFACE CORNER RADIUS0.1000 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 4
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
310028Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
JHM516810Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 JD9138?
JD9138 is a CUP,TAPERED ROLLER BEARING.
What parts can replace JD9138?
There are 2 known substitutes for JD9138: 310028, JHM516810. Substitute compatibility should be verified for your specific system.
What is the NSN for JD9138?
JD9138 is cataloged in the U.S. Government catalog under NSN 3110-01-075-7215. 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.