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SB2103-2 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

SB2103-2: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL ROLLER, bore_shape: STRAIGHT, surface_finish: GROUND, locating_feature: NONLOCATING, internal_fit-up_designation: LOOSE, standard_tolerance_designation: RBEC NO.5. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-044-4463, 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
SB2103-2
NSN: 3110-00-044-4463
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialSTEEL ROLLER
bore_shapeSTRAIGHT
surface_finishGROUND
locating_featureNONLOCATING
internal_fit-up_designationLOOSE
standard_tolerance_designationRBEC NO.5
NSN3110-00-044-4463
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: SB2103-2 · 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
•
INTERNAL FIT-UP DESIGNATION: LOOSE
•
LOCATING FEATURE: NONLOCATING
•
SURFACE FINISH: GROUND
•
BORE SHAPE: STRAIGHT
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.5
•
MATERIAL: STEEL OUTER RING
TECHNICAL CHARACTERISTICS
INTERNAL FIT-UP DESIGNATIONLOOSE
LOCATING FEATURENONLOCATING
SURFACE FINISHGROUND
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONRBEC NO.5
MATERIALSTEEL OUTER RING
MATERIALSTEEL INNER RING
MATERIALCOPPER ALLOY RETAINER
MATERIALSTEEL ROLLER
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

No substitute or cross-reference records for this part.

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 SB2103-2?
SB2103-2 is a BEARING,ROLLER,CYLINDRICAL.
What is the NSN for SB2103-2?
SB2103-2 is cataloged in the U.S. Government catalog under NSN 3110-00-044-4463. 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.