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Technical Data Sheet

JM207049/JM207010 CLASS C — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

JM207049/JM207010 CLASS C: 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 material: STEEL COMP E52100 OVERALL, cup_width: 0.9242 INCHES MINIMUM AND 0.9272 INCHES MAXIMUM IN, cone_width: 1.1317 INCHES MINIMUM AND 1.1447 INCHES MAXIMUM IN, bore_diameter: 2.1649 INCHES MINIMUM AND 2.1654 INCHES MAXIMUM IN, overall_width: 0.9152 INCHES MINIMUM AND 0.9272 INCHES MAXIMUM IN, standout_width: 0.2165 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-076-6774, 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
JM207049/JM207010 CLASS C
NSN: 3110-01-076-6774
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 OVERALL
cup_width0.9242 INCHES MINIMUM AND 0.9272 INCHES MAXIMUM IN
cone_width1.1317 INCHES MINIMUM AND 1.1447 INCHES MAXIMUM IN
bore_diameter2.1649 INCHES MINIMUM AND 2.1654 INCHES MAXIMUM IN
overall_width0.9152 INCHES MINIMUM AND 0.9272 INCHES MAXIMUM IN
standout_width0.2165 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, NORMAL ANGLE
cone_corner_radius0.0600 INCHES MINIMUM IN
backface_corner_radius0.1000 INCHES NOMINAL IN
overall_outside_diameter3.7397 INCHES MINIMUM AND 3.7402 INCHES MAXIMUM IN
NSN3110-01-076-6774
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: JM207049/JM207010 CLASS C · 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: 0.9242 INCHES MINIMUM AND 0.9272 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: STRAIGHT BORE, NORMAL ANGLE
•
OVERALL OUTSIDE DIAMETER: 3.7397 INCHES MINIMUM AND 3.7402 INCHES MAXIMUM IN
•
BACKFACE CORNER RADIUS: 0.1000 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.0600 INCHES MINIMUM IN
•
STANDOUT WIDTH: 0.2165 INCHES NOMINAL IN
•
CONE WIDTH: 1.1317 INCHES MINIMUM AND 1.1447 INCHES MAXIMUM 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
CUP WIDTH0.9242 INCHES MINIMUM AND 0.9272 INCHES MAXIMUM IN
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
OVERALL WIDTH0.9152 INCHES MINIMUM AND 0.9272 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER3.7397 INCHES MINIMUM AND 3.7402 INCHES MAXIMUM IN
BACKFACE CORNER RADIUS0.1000 INCHES NOMINAL IN
CONE CORNER RADIUS0.0600 INCHES MINIMUM IN
STANDOUT WIDTH0.2165 INCHES NOMINAL IN
CONE WIDTH1.1317 INCHES MINIMUM AND 1.1447 INCHES MAXIMUM IN
BORE DIAMETER2.1649 INCHES MINIMUM AND 2.1654 INCHES MAXIMUM IN
MATERIALSTEEL COMP E52100 OVERALL
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
12283133Same 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 JM207049/JM207010 CLASS C?
JM207049/JM207010 CLASS C is a BEARING,ROLLER,TAPERED.
What parts can replace JM207049/JM207010 CLASS C?
There is 1 known substitute for JM207049/JM207010 CLASS C: 12283133. Substitute compatibility should be verified for your specific system.
What is the NSN for JM207049/JM207010 CLASS C?
JM207049/JM207010 CLASS C is cataloged in the U.S. Government catalog under NSN 3110-01-076-6774. 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.