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1309U091 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

1309U091: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 2.3396 INCHES NOMINAL IN, overall_width: 0.9845 INCHES NOMINAL IN, surface_finish: GROUND, locating_feature: NONLOCATING. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-458-8445, 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
1309U091
NSN: 3110-00-458-8445
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 51600 — REGAL BELOIT AMERICA, INC. DBA ROLLWAY BEARING (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter2.3396 INCHES NOMINAL IN
overall_width0.9845 INCHES NOMINAL IN
surface_finishGROUND
locating_featureNONLOCATING
special_featuresSNAP RING AND GROOVE ON OD AND OUTER RING AND ROLLER ASSY ONLY
overall_outside_diameter3.9370 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
standard_tolerance_designationRBEC NO.1
NSN3110-00-458-8445
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1309U091 · 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
•
RETAINER FABRICATION METHOD: PRESSED
•
LOCATING FEATURE: NONLOCATING
•
SURFACE FINISH: GROUND
•
OVERALL OUTSIDE DIAMETER: 3.9370 INCHES NOMINAL IN
•
BORE SHAPE: STRAIGHT
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.1
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODPRESSED
LOCATING FEATURENONLOCATING
SURFACE FINISHGROUND
OVERALL WIDTH0.9845 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER3.9370 INCHES NOMINAL IN
BORE SHAPESTRAIGHT
SPECIAL FEATURESSNAP RING AND GROOVE ON OD AND OUTER RING AND ROLLER ASSY ONLY
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
BORE DIAMETER2.3396 INCHES NOMINAL IN
MATERIALSTEEL 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
1309WGBReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1309U091?
1309U091 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace 1309U091?
There is 1 known substitute for 1309U091: 1309WGB. Substitute compatibility should be verified for your specific system.
What is the NSN for 1309U091?
1309U091 is cataloged in the U.S. Government catalog under NSN 3110-00-458-8445. 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.