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FR188K28 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

FR188K28: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, flange_width: 0.0210 INCHES MINIMUM AND 0.0230 INCHES MAXIMUM IN, bore_diameter: 0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, overall_width: 0.1240 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN, load_direction: RADIAL. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-585-3028, 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
FR188K28
NSN: 3110-00-585-3028
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 83086 — NEW HAMPSHIRE BALL BEARINGS INC DIV HITECH DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
flange_width0.0210 INCHES MINIMUM AND 0.0230 INCHES MAXIMUM IN
bore_diameter0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
overall_width0.1240 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
special_featuresAXIAL PLAY MEASURED UNDER AN 8.0 OZ REVERSIBLETHRUST LOAD OZ
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
internal_clearance0.0002 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN
flange_outside_diameter0.5420 INCHES MINIMUM AND 0.5470 INCHES MAXIMUM IN
outer_ring_outside_diameter0.4998 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
NSN3110-00-585-3028
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FR188K28 · 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
•
INTERNAL CLEARANCE: 0.0002 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN
•
FLANGE OUTSIDE DIAMETER: 0.5420 INCHES MINIMUM AND 0.5470 INCHES MAXIMUM IN
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODPRESSED
INTERNAL CLEARANCE0.0002 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN
FLANGE OUTSIDE DIAMETER0.5420 INCHES MINIMUM AND 0.5470 INCHES MAXIMUM IN
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH0.1240 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
SPECIAL FEATURESAXIAL PLAY MEASURED UNDER AN 8.0 OZ REVERSIBLETHRUST LOAD OZ
FLANGE WIDTH0.0210 INCHES MINIMUM AND 0.0230 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
MFR81418AF2PXRXXE4-5GReference document
Same NSN cross-reference
Reference document — Secondary reference
814FCP28Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is FR188K28?
FR188K28 is a BEARING,BALL,ANNULAR.
What parts can replace FR188K28?
There are 2 known substitutes for FR188K28: MFR81418AF2PXRXXE4-5G, 814FCP28. Substitute compatibility should be verified for your specific system.
What is the NSN for FR188K28?
FR188K28 is cataloged in the U.S. Government catalog under NSN 3110-00-585-3028. 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.