PartsTable
Technical Data Sheet
B59 ✓ 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,NEEDLE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, corner_shape: SQUARE ALL CORNERS, bore_diameter: 0.3750 INCHES NOMINAL IN, overall_width: 0.3750 INCHES NOMINAL IN, alignment_type: RIGID, overall_length: 0.0610 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-112-5879, 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
B59
NSN: 3110-00-112-5879
FSC: 3110
CAGE: 00724 — RAYTHEON COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
corner_shapeSQUARE ALL CORNERS
bore_diameter0.3750 INCHES NOMINAL IN
overall_width0.3750 INCHES NOMINAL IN
alignment_typeRIGID
overall_length0.0610 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN
surface_finishGROUND
performance_typeHIGH CAPACITYHIGH CAPACITY
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.1250 INCHES MINIMUM AND 0.1300 INCHES MAXIMUM IN
cross-sectional_sizeBB
lubrication_materialGREASE
NSN3110-00-112-5879
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: B59 · 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
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
BORE DIAMETER: 0.3750 INCHES NOMINAL IN
ALIGNMENT TYPE: RIGID
OVERALL OUTSIDE DIAMETER: 0.5625 INCHES NOMINAL IN
STYLE DESIGNATOR: NON-SEPARABLE, OPEN END, DRAWN SHELL
TECHNICAL CHARACTERISTICS (FLIS)
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
OVERALL WIDTH0.3750 INCHES NOMINAL IN
BORE DIAMETER0.3750 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
OVERALL OUTSIDE DIAMETER0.5625 INCHES NOMINAL IN
STYLE DESIGNATORNON-SEPARABLE, OPEN END, DRAWN SHELL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
12HD45Interchangeable
interchangeable cross-reference
interchangeable
BN793Interchangeable
interchangeable cross-reference
interchangeable
121-0037Interchangeable
interchangeable cross-reference
interchangeable
BX59Interchangeable
interchangeable cross-reference
interchangeable
90500Interchangeable
interchangeable cross-reference
interchangeable
419366-17Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B59?
B59 is a BEARING,ROLLER,NEEDLE.
What parts can replace B59?
There are 9 known substitutes for B59: 12HD45, BN793, 121-0037 and 6 more. Substitute compatibility should be verified for your specific system.
Is B59 still available?
B59 is currently cancelled.
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