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Technical Data Sheet
PartsTable / COMPONENT / 2B9394
2B9394 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL OUTER RING, bore_shape: STRAIGHT, bore_diameter: 1.6010 INCHES NOMINAL IN, overall_width: 0.7480 INCHES NOMINAL IN, surface_finish: GROUND, locating_feature: NONLOCATING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-158-7199, 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
2B9394
NSN: 3110-00-158-7199
FSC: 3110
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OUTER RING
bore_shapeSTRAIGHT
bore_diameter1.6010 INCHES NOMINAL IN
overall_width0.7480 INCHES NOMINAL IN
surface_finishGROUND
locating_featureNONLOCATING
overall_outside_diameter2.8346 INCHES NOMINAL IN
internal_fit-up_designationSTANDARD
standard_tolerance_designationRBEC NO.1
NSN3110-00-158-7199
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 2B9394 · 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
•
SURFACE FINISH: GROUND
•
MATERIAL: STEEL OUTER RING
•
LOCATING FEATURE: NONLOCATING
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.1
•
BORE DIAMETER: 1.6010 INCHES NOMINAL IN
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISHGROUND
MATERIALSTEEL OUTER RING
MATERIALSTEEL ROLLER
LOCATING FEATURENONLOCATING
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
BORE DIAMETER1.6010 INCHES NOMINAL IN
OVERALL WIDTH0.7480 INCHES NOMINAL IN
BORE SHAPESTRAIGHT
OVERALL OUTSIDE DIAMETER2.8346 INCHES NOMINAL IN
INTERNAL FIT-UP DESIGNATIONSTANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
178851Interchangeable
interchangeable cross-reference
interchangeable
EC-A5478Interchangeable
interchangeable cross-reference
interchangeable
5478Interchangeable
interchangeable cross-reference
interchangeable
149055-01Interchangeable
interchangeable cross-reference
interchangeable
GGG-D-296Interchangeable
interchangeable cross-reference
interchangeable
1266Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2B9394?
2B9394 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace 2B9394?
There are 25 known substitutes for 2B9394: 178851, EC-A5478, 5478 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2B9394?
2B9394 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-158-7199. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026