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B280830-325 — BEARING,ROLLER,TRACK ROLLER

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

B280830-325: BEARING,ROLLER,TRACK ROLLER.

The BEARING,ROLLER,TRACK ROLLER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_diameter: 1.7495 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN, lubrication_material: LUBRICANT, overall_outside_diameter: 3.4688 INCHES NOMINAL IN, standard_tolerance_designation: RBEC NO.1. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-359-4055, 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
B280830-325
NSN: 3110-00-359-4055
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 51600 — REGAL BELOIT AMERICA, INC. DBA ROLLWAY BEARING (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter1.7495 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
lubrication_materialLUBRICANT
overall_outside_diameter3.4688 INCHES NOMINAL IN
standard_tolerance_designationRBEC NO.1
NSN3110-00-359-4055
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: B280830-325 · 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
•
LUBRICATION MATERIAL: LUBRICANT
•
OVERALL OUTSIDE DIAMETER: 3.4688 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.1
•
BORE DIAMETER: 1.7495 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
LUBRICATION MATERIALLUBRICANT
OVERALL OUTSIDE DIAMETER3.4688 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
BORE DIAMETER1.7495 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 6
606948Reference document
Same NSN cross-reference
Reference document — Secondary reference
7CL374-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
CL374-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
652645Reference document
Same NSN cross-reference
Reference document — Secondary reference
7-606948Reference document
Same NSN cross-reference
Reference document — Secondary reference
AB0070606948Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B280830-325?
B280830-325 is a BEARING,ROLLER,TRACK ROLLER.
What parts can replace B280830-325?
There are 6 known substitutes for B280830-325: 606948, 7CL374-3, CL374-3 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B280830-325?
B280830-325 is cataloged in the U.S. Government catalog under NSN 3110-00-359-4055. 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.