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JLM104948-90N03 — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

JLM104948-90N03: 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 cup_width: 17.74 MILLIMETERS NOMINAL17.74 MILLIMETERS NOMINAL MM, cone_width: 49.0 MILLIMETERS NOMINAL49.0 MILLIMETERS NOMINAL MM, bore_diameter: 50.0 MILLIMETERS NOMINAL50.0 MILLIMETERS NOMINAL MM, overall_width: 49.0 MILLIMETERS NOMINAL49.0 MILLIMETERS NOMINAL MM, style_designator: STRAIGHT BORE, DOUBLE CONE, SINGLE CUPS, STEEP ANGLESTRAIGHT BORE, DOUBLE CONE, SINGLE CUPS, STEEP ANGLE, cone_corner_radius: 3.0 MILLIMETERS NOMINAL3.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-375-7196, 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
JLM104948-90N03
NSN: 3110-01-375-7196
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
cup_width17.74 MILLIMETERS NOMINAL17.74 MILLIMETERS NOMINAL MM
cone_width49.0 MILLIMETERS NOMINAL49.0 MILLIMETERS NOMINAL MM
bore_diameter50.0 MILLIMETERS NOMINAL50.0 MILLIMETERS NOMINAL MM
overall_width49.0 MILLIMETERS NOMINAL49.0 MILLIMETERS NOMINAL MM
style_designatorSTRAIGHT BORE, DOUBLE CONE, SINGLE CUPS, STEEP ANGLESTRAIGHT BORE, DOUBLE CONE, SINGLE CUPS, STEEP ANGLE
cone_corner_radius3.0 MILLIMETERS NOMINAL3.0 MILLIMETERS NOMINAL MM
backface_corner_radius0.4 MILLIMETERS NOMINAL0.4 MILLIMETERS NOMINAL MM
overall_outside_diameter82.0 MILLIMETERS NOMINAL82.0 MILLIMETERS NOMINAL MM
NSN3110-01-375-7196
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: JLM104948-90N03 · 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
•
CUP WIDTH: 17.74 MILLIMETERS NOMINAL17.74 MILLIMETERS NOMINAL MM
•
STYLE DESIGNATOR: STRAIGHT BORE, DOUBLE CONE, SINGLE CUPS, STEEP ANGLESTRAIGHT BORE, DOUBLE CONE, SINGLE CUPS, STEEP ANGLE
•
OVERALL OUTSIDE DIAMETER: 82.0 MILLIMETERS NOMINAL82.0 MILLIMETERS NOMINAL MM
•
BACKFACE CORNER RADIUS: 0.4 MILLIMETERS NOMINAL0.4 MILLIMETERS NOMINAL MM
•
CONE CORNER RADIUS: 3.0 MILLIMETERS NOMINAL3.0 MILLIMETERS NOMINAL MM
•
CONE WIDTH: 49.0 MILLIMETERS NOMINAL49.0 MILLIMETERS NOMINAL MM
•
BORE DIAMETER: 50.0 MILLIMETERS NOMINAL50.0 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
CUP WIDTH17.74 MILLIMETERS NOMINAL17.74 MILLIMETERS NOMINAL MM
STYLE DESIGNATORSTRAIGHT BORE, DOUBLE CONE, SINGLE CUPS, STEEP ANGLESTRAIGHT BORE, DOUBLE CONE, SINGLE CUPS, STEEP ANGLE
OVERALL WIDTH49.0 MILLIMETERS NOMINAL49.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER82.0 MILLIMETERS NOMINAL82.0 MILLIMETERS NOMINAL MM
BACKFACE CORNER RADIUS0.4 MILLIMETERS NOMINAL0.4 MILLIMETERS NOMINAL MM
CONE CORNER RADIUS3.0 MILLIMETERS NOMINAL3.0 MILLIMETERS NOMINAL MM
CONE WIDTH49.0 MILLIMETERS NOMINAL49.0 MILLIMETERS NOMINAL MM
BORE DIAMETER50.0 MILLIMETERS NOMINAL50.0 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 1
2D3-03458 ITEM 63Same 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 JLM104948-90N03?
JLM104948-90N03 is a BEARING,ROLLER,TAPERED.
What parts can replace JLM104948-90N03?
There is 1 known substitute for JLM104948-90N03: 2D3-03458 ITEM 63. Substitute compatibility should be verified for your specific system.
What is the NSN for JLM104948-90N03?
JLM104948-90N03 is cataloged in the U.S. Government catalog under NSN 3110-01-375-7196. 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.