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R38LL4T3C6K58/287 — Technical Data Sheet

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— · 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,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP E52100 OUTER RING, bore_shape: STRAIGHT, bore_diameter: 0.31480 INCHES MINIMUM AND 0.31500 INCHES MAXIMUM IN, overall_width: 0.4044 INCHES MINIMUM AND 0.4060 INCHES MAXIMUM IN, load_direction: RADIAL, surface_finish: GROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-117-8203, 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
R38LL4T3C6K58/287
NSN: 3110-01-117-8203
FSC: 3110
CAGE: 83086 — NEW HAMPSHIRE BALL BEARINGS INC DIV HITECH DIVISION (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 OUTER RING
bore_shapeSTRAIGHT
bore_diameter0.31480 INCHES MINIMUM AND 0.31500 INCHES MAXIMUM IN
overall_width0.4044 INCHES MINIMUM AND 0.4060 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
internal_clearance0.00065 INCHES NOMINAL RADIAL IN
overall_outside_diameter0.8659 INCHES MINIMUM AND 0.8661 INCHES MAXIMUM IN
criticality_code_justificationABXV
standard_tolerance_designationABEC NO.7
material_document_and_classificationSAE 52100 ASSN STD SINGLE MATERIAL RESPONSE INNER RING
NSN3110-01-117-8203
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: R38LL4T3C6K58/287 · 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
•
LOAD DIRECTION: RADIAL
•
SURFACE FINISH: GROUND
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.7
•
MATERIAL: PLASTIC PHENOLIC RETAINER
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 52100 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.4044 INCHES MINIMUM AND 0.4060 INCHES MAXIMUM IN
LOAD DIRECTIONRADIAL
SURFACE FINISHGROUND
STANDARD TOLERANCE DESIGNATIONABEC NO.7
MATERIALPLASTIC PHENOLIC RETAINER
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 52100 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING
MATERIAL DOCUMENT AND CLASSIFICATION58861,99167 MFR REF SINGLE MATERIAL RESPONSE RETAINER
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 52100 ASSN STD SINGLE MATERIAL RESPONSE INNER RING
INTERNAL CLEARANCE0.00065 INCHES NOMINAL RADIAL IN
MATERIALSTEEL COMP E52100 OUTER RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
588 NO 6/0Interchangeable
interchangeable cross-reference
interchangeable
588-6/0Interchangeable
interchangeable cross-reference
interchangeable
21764Interchangeable
interchangeable cross-reference
interchangeable
R9350BInterchangeable
interchangeable cross-reference
interchangeable
3890-9011Interchangeable
interchangeable cross-reference
interchangeable
38FFTX2K5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R38LL4T3C6K58/287?
R38LL4T3C6K58/287 is a BEARING,BALL,ANNULAR.
What parts can replace R38LL4T3C6K58/287?
There are 13 known substitutes for R38LL4T3C6K58/287: 588 NO 6/0, 588-6/0, 21764 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R38LL4T3C6K58/287?
R38LL4T3C6K58/287 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-117-8203. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: September 2026