PartsTable
Technical Data Sheet
L311 ✓ 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,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 55.00 MILLIMETERS NOMINAL MM, overall_width: 29.0 MILLIMETERS NOMINAL MM, alignment_type: SELF-ALIGNING, load_direction: ANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-5101, 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
L311
NSN: 3110-00-156-5101
FSC: 3110
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter55.00 MILLIMETERS NOMINAL MM
overall_width29.0 MILLIMETERS NOMINAL MM
alignment_typeSELF-ALIGNING
load_directionANGULAR
surface_finishGROUND
style_designatorNON-SEPARABLE
self-alignment_locationINTERNAL
overall_outside_diameter55.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
nondefinitive_spec/std_data123 TYPE AND 00 GRADE
NSN3110-00-156-5101
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: L311 · 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
INTERNAL FIT-UP CONTACT ANGULAR DIRECTION: INWARD CONVERGENT
NONDEFINITIVE SPEC/STD DATA: 123 TYPE AND 00 GRADE
ALIGNMENT TYPE: SELF-ALIGNING
STYLE DESIGNATOR: NON-SEPARABLE
MATERIAL: STEEL OVERALL
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL FIT-UP CONTACT ANGULAR DIRECTIONINWARD CONVERGENT
NONDEFINITIVE SPEC/STD DATA123 TYPE AND 00 GRADE
ALIGNMENT TYPESELF-ALIGNING
NONDEFINITIVE SPEC/STD DATA123 TYPE AND 00 GRADE
STYLE DESIGNATORNON-SEPARABLE
MATERIALSTEEL OVERALL
BORE SHAPESTRAIGHT
OVERALL WIDTH29.0 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONABEC NO.1
LOAD DIRECTIONANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
22618Interchangeable
interchangeable cross-reference
interchangeable
N22618Interchangeable
interchangeable cross-reference
interchangeable
17390N PIECE 11Interchangeable
interchangeable cross-reference
interchangeable
10055Interchangeable
interchangeable cross-reference
interchangeable
2410 55/64Interchangeable
interchangeable cross-reference
interchangeable
53155Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is L311?
L311 is a BEARING,BALL,ANNULAR.
What parts can replace L311?
There are 28 known substitutes for L311: 22618, N22618, 17390N PIECE 11 and 25 more. Substitute compatibility should be verified for your specific system.
What is the NSN for L311?
L311 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-5101. This indicates validated use in U.S. government and defense supply chains.
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