PartsTable
Technical Data Sheet
MR18N ✓ 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 ROLLER, bore_diameter: 1.1250 INCHES NOMINAL IN, overall_width: 1.0000 INCHES NOMINAL IN, alignment_type: RIGID, surface_finish: GROUND, special_features: OIL HOLE AND OIL GROOVE IN OUTER RING ALSO MFR STANDARD RETAINER. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-3242, 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
MR18N
NSN: 3110-00-227-3242
FSC: 3110
CAGE: 92563 — MCGILL MANUFACTURING CO, INC (USA)
SPECIFICATIONS
materialSTEEL ROLLER
bore_diameter1.1250 INCHES NOMINAL IN
overall_width1.0000 INCHES NOMINAL IN
alignment_typeRIGID
surface_finishGROUND
special_featuresOIL HOLE AND OIL GROOVE IN OUTER RING ALSO MFR STANDARD RETAINER
style_designatorNON-SEPARABLE, WITH ROLLER RETAINER, HARDENED AND GROUND
overall_outside_diameter1.6250 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
standard_tolerance_designationAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
NSN3110-00-227-3242
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MR18N · 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
BORE DIAMETER: 1.1250 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER: 1.6250 INCHES NOMINAL IN
RETAINER FABRICATION METHOD: PRESSED
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
MATERIAL: STEEL ROLLER
SURFACE FINISH: GROUND
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER1.1250 INCHES NOMINAL IN
OVERALL WIDTH1.0000 INCHES NOMINAL IN
SPECIAL FEATURESOIL HOLE AND OIL GROOVE IN OUTER RING ALSO MFR STANDARD RETAINER
OVERALL OUTSIDE DIAMETER1.6250 INCHES NOMINAL IN
RETAINER FABRICATION METHODPRESSED
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
MATERIALSTEEL ROLLER
SURFACE FINISHGROUND
MATERIALSTEEL OUTER RING
STYLE DESIGNATORNON-SEPARABLE, WITH ROLLER RETAINER, HARDENED AND GROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
H486Interchangeable
interchangeable cross-reference
interchangeable
50-493Interchangeable
interchangeable cross-reference
interchangeable
D171487Interchangeable
interchangeable cross-reference
interchangeable
16-640Interchangeable
interchangeable cross-reference
interchangeable
ST32D19-8Interchangeable
interchangeable cross-reference
interchangeable
ST32D19Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MR18N?
MR18N is a BEARING,ROLLER,NEEDLE.
What parts can replace MR18N?
There are 15 known substitutes for MR18N: H486, 50-493, D171487 and 12 more. Substitute compatibility should be verified for your specific system.
Is MR18N still available?
MR18N is currently cancelled.
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