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Technical Data Sheet
PartsTable / COMPONENT / 310918
310918 ✓ Verified by PartsTable
Legrand · 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,CYLINDRICAL is a Legrand industrial component. Key specifications include material: STEEL COMP E52100 OUTER RING, bore_shape: STRAIGHT, bore_diameter: 1.1809 INCHES MINIMUM AND 1.1811 INCHES MAXIMUM IN, overall_width: 0.7430 INCHES MINIMUM AND 0.7480 INCHES MAXIMUM IN, surface_finish: GROUND, locating_feature: ONE DIRECTION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-125-7447, 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
310918
NSN: 3110-00-125-7447
FSC: 3110
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 OUTER RING
bore_shapeSTRAIGHT
bore_diameter1.1809 INCHES MINIMUM AND 1.1811 INCHES MAXIMUM IN
overall_width0.7430 INCHES MINIMUM AND 0.7480 INCHES MAXIMUM IN
surface_finishGROUND
locating_featureONE DIRECTION
special_featuresRETAINER SILVER PLATE AMS2412 NO STRIKE METL,PLATE 0.0005-0.0015 THK ON LAND RIDING SURFACES AND ROLLER POCKETS;ENGINEERING CRITICAL
style_designatorSINGLE ROW, TWO-DIRECTION LOCATING, TWO LIP INNER RING, TWO LIP OUTER RING, SEPARABLE
internal_clearance0.0004 INCHES MINIMUM RADIAL AND 0.0018 INCHES MAXIMUM RADIAL IN
overall_outside_diameter2.8343 INCHES MINIMUM AND 2.8346 INCHES MAXIMUM IN
standard_tolerance_designationRBEC NO.5
material_document_and_classificationAMS 6440 ASSN STD SINGLE MATERIAL RESPONSE ROLLER
NSN3110-00-125-7447
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 310918 · Legrand ⚠ 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: 1.1809 INCHES MINIMUM AND 1.1811 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP E52100 INNER RING
•
INTERNAL CLEARANCE: 0.0004 INCHES MINIMUM RADIAL AND 0.0018 INCHES MAXIMUM RADIAL IN
•
BORE SHAPE: STRAIGHT
•
SURFACE FINISH: GROUND
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER1.1809 INCHES MINIMUM AND 1.1811 INCHES MAXIMUM IN
OVERALL WIDTH0.7430 INCHES MINIMUM AND 0.7480 INCHES MAXIMUM IN
MATERIALSTEEL COMP E52100 INNER RING
SPECIAL FEATURESRETAINER SILVER PLATE AMS2412 NO STRIKE METL,PLATE 0.0005-0.0015 THK ON LAND RIDING SURFACES AND ROLLER POCKETS;ENGINEERING CRITICAL
MATERIALSTEEL COMP E52100 OUTER RING
INTERNAL CLEARANCE0.0004 INCHES MINIMUM RADIAL AND 0.0018 INCHES MAXIMUM RADIAL IN
BORE SHAPESTRAIGHT
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER2.8343 INCHES MINIMUM AND 2.8346 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY OR STEEL COMP E52100 RETAINER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
314732Interchangeable
interchangeable cross-reference
interchangeable
313-004Interchangeable
interchangeable cross-reference
interchangeable
310-916Interchangeable
interchangeable cross-reference
interchangeable
792898Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 310918?
310918 is a BEARING,ROLLER,CYLINDRICAL manufactured by Legrand.
What parts can replace 310918?
There are 4 known substitutes for 310918: 314732, 313-004, 310-916 and 1 more. Substitute compatibility should be verified for your specific system.
Is 310918 still available?
310918 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026