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23058558 — BEARING,BALL,DUPLEX

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

23058558: BEARING,BALL,DUPLEX.

The BEARING,BALL,DUPLEX is a the manufacturer industrial component. Key specifications include material: STEEL COMP E52100 OUTER RING, bore_diameter: 0.7872 INCHES MINIMUM AND 0.7874 INCHES MAXIMUM IN, overall_width: 1.0984 INCHES MINIMUM AND 1.1024 INCHES MAXIMUM IN, load_direction: ANGULAR, surface_finish: GROUND, style_designator: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-222-1191, 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
23058558
NSN: 3110-00-222-1191
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 38443 — SKF USA INC. (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 OUTER RING
bore_diameter0.7872 INCHES MINIMUM AND 0.7874 INCHES MAXIMUM IN
overall_width1.0984 INCHES MINIMUM AND 1.1024 INCHES MAXIMUM IN
load_directionANGULAR
surface_finishGROUND
style_designatorCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
bearing_preload_rating20.0 POUNDS NOMINAL LBS
overall_outside_diameter1.8501 INCHES MINIMUM AND 1.8504 INCHES MAXIMUM IN
retainer_fabrication_methodMACHINED
NSN3110-00-222-1191
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 23058558 · 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: MACHINED
•
BEARING PRELOAD RATING: 20.0 POUNDS NOMINAL LBS
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
•
OVERALL OUTSIDE DIAMETER: 1.8501 INCHES MINIMUM AND 1.8504 INCHES MAXIMUM IN
•
LOAD DIRECTION: ANGULAR
•
BORE DIAMETER: 0.7872 INCHES MINIMUM AND 0.7874 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
BEARING PRELOAD RATING20.0 POUNDS NOMINAL LBS
SURFACE FINISHGROUND
STYLE DESIGNATORCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
OVERALL WIDTH1.0984 INCHES MINIMUM AND 1.1024 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER1.8501 INCHES MINIMUM AND 1.8504 INCHES MAXIMUM IN
LOAD DIRECTIONANGULAR
BORE DIAMETER0.7872 INCHES MINIMUM AND 0.7874 INCHES MAXIMUM IN
MATERIALSTEEL COMP E52100 BALL
MATERIALCOPPER ALLOY RETAINER
SUBSTITUTES & CROSS-REFERENCES 6
R204B34C11K58-1A5Reference document
Same NSN cross-reference
Reference document — Secondary reference
6859078Reference document
Same NSN cross-reference
Reference document — Secondary reference
7204VAFReference document
Same NSN cross-reference
Reference document — Secondary reference
204RD82BReference document
Same NSN cross-reference
Reference document — Secondary reference
6859094Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
23030559Reference 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 23058558?
23058558 is a BEARING,BALL,DUPLEX.
What parts can replace 23058558?
There are 6 known substitutes for 23058558: R204B34C11K58-1A5, 6859078, 7204VAF and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 23058558?
23058558 is cataloged in the U.S. Government catalog under NSN 3110-00-222-1191. 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.