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LL957049-LL957010 — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

LL957049-LL957010: 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: 0.5625 INCHES NOMINAL0.5625 INCHES NOMINAL IN, cone_width: 0.8125 INCHES NOMINAL0.8125 INCHES NOMINAL IN, bore_diameter: 12.3145 INCHES NOMINAL12.3145 INCHES NOMINAL IN, overall_width: 0.8750 INCHES NOMINAL0.8750 INCHES NOMINAL IN, standout_width: 0.3125 INCHES NOMINAL0.3125 INCHES NOMINAL IN, special_features: DUTY CLASS LL SERIESDUTY CLASS LL SERIES. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-348-0886, 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
LL957049-LL957010
NSN: 3110-01-348-0886
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
cup_width0.5625 INCHES NOMINAL0.5625 INCHES NOMINAL IN
cone_width0.8125 INCHES NOMINAL0.8125 INCHES NOMINAL IN
bore_diameter12.3145 INCHES NOMINAL12.3145 INCHES NOMINAL IN
overall_width0.8750 INCHES NOMINAL0.8750 INCHES NOMINAL IN
standout_width0.3125 INCHES NOMINAL0.3125 INCHES NOMINAL IN
special_featuresDUTY CLASS LL SERIESDUTY CLASS LL SERIES
style_designatorRIB RING, STRAIGHT BORE, NORMAL ANGLERIB RING, STRAIGHT BORE, NORMAL ANGLE
overall_outside_diameter14.1270 INCHES NOMINAL14.1270 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2AFBMA CLASS 2
NSN3110-01-348-0886
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: LL957049-LL957010 · 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: 0.5625 INCHES NOMINAL0.5625 INCHES NOMINAL IN
•
STYLE DESIGNATOR: RIB RING, STRAIGHT BORE, NORMAL ANGLERIB RING, STRAIGHT BORE, NORMAL ANGLE
•
OVERALL OUTSIDE DIAMETER: 14.1270 INCHES NOMINAL14.1270 INCHES NOMINAL IN
•
STANDOUT WIDTH: 0.3125 INCHES NOMINAL0.3125 INCHES NOMINAL IN
•
CONE WIDTH: 0.8125 INCHES NOMINAL0.8125 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2AFBMA 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
CUP WIDTH0.5625 INCHES NOMINAL0.5625 INCHES NOMINAL IN
STYLE DESIGNATORRIB RING, STRAIGHT BORE, NORMAL ANGLERIB RING, STRAIGHT BORE, NORMAL ANGLE
OVERALL WIDTH0.8750 INCHES NOMINAL0.8750 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER14.1270 INCHES NOMINAL14.1270 INCHES NOMINAL IN
STANDOUT WIDTH0.3125 INCHES NOMINAL0.3125 INCHES NOMINAL IN
CONE WIDTH0.8125 INCHES NOMINAL0.8125 INCHES NOMINAL IN
SPECIAL FEATURESDUTY CLASS LL SERIESDUTY CLASS LL SERIES
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2AFBMA CLASS 2
BORE DIAMETER12.3145 INCHES NOMINAL12.3145 INCHES NOMINAL IN
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
SM72000-003Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is LL957049-LL957010?
LL957049-LL957010 is a BEARING,ROLLER,TAPERED.
What parts can replace LL957049-LL957010?
There is 1 known substitute for LL957049-LL957010: SM72000-003. Substitute compatibility should be verified for your specific system.
What is the NSN for LL957049-LL957010?
LL957049-LL957010 is cataloged in the U.S. Government catalog under NSN 3110-01-348-0886. 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.