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Technical Data Sheet
PartsTable / COMPONENT / LA157-1
LA157-1 ✓ 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: 2.0000 INCHES NOMINAL IN, overall_width: 1.2500 INCHES NOMINAL IN, alignment_type: RIGID, surface_finish: GROUND, special_features: OIL HOLE AND GROOVE IN OUTER RACE ALSO STEEL RETAINER. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-3253, 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
LA157-1
NSN: 3110-00-227-3253
FSC: 3110
CAGE: 46717 — PETTIBONE LLC (USA)
SPECIFICATIONS
materialSTEEL ROLLER
bore_diameter2.0000 INCHES NOMINAL IN
overall_width1.2500 INCHES NOMINAL IN
alignment_typeRIGID
surface_finishGROUND
special_featuresOIL HOLE AND GROOVE IN OUTER RACE ALSO STEEL RETAINER
style_designatorNON-SEPARABLE, WITH ROLLER RETAINER, HARDENED AND GROUND
overall_outside_diameter2.5625 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
standard_tolerance_designationAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
NSN3110-00-227-3253
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: LA157-1 · 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
•
ALIGNMENT TYPE: RIGID
•
SURFACE FINISH: GROUND
•
MATERIAL: STEEL ROLLER
•
OVERALL OUTSIDE DIAMETER: 2.5625 INCHES NOMINAL IN
•
BORE DIAMETER: 2.0000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-SEPARABLE, WITH ROLLER RETAINER, HARDENED AND GROUND
TECHNICAL CHARACTERISTICS (FLIS)
ALIGNMENT TYPERIGID
SURFACE FINISHGROUND
OVERALL WIDTH1.2500 INCHES NOMINAL IN
MATERIALSTEEL ROLLER
OVERALL OUTSIDE DIAMETER2.5625 INCHES NOMINAL IN
BORE DIAMETER2.0000 INCHES NOMINAL IN
STYLE DESIGNATORNON-SEPARABLE, WITH ROLLER RETAINER, HARDENED AND GROUND
SPECIAL FEATURESOIL HOLE AND GROOVE IN OUTER RACE ALSO STEEL RETAINER
MATERIALSTEEL CORROSION RESISTING OR COPPER ALLOY RETAINER
MATERIALSTEEL OUTER RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
A20-1AInterchangeable
interchangeable cross-reference
interchangeable
2105-3Interchangeable
interchangeable cross-reference
interchangeable
A20-1ABInterchangeable
interchangeable cross-reference
interchangeable
7515Interchangeable
interchangeable cross-reference
interchangeable
5514Interchangeable
interchangeable cross-reference
interchangeable
10086629Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LA157-1?
LA157-1 is a BEARING,ROLLER,NEEDLE.
What parts can replace LA157-1?
There are 30 known substitutes for LA157-1: A20-1A, 2105-3, A20-1AB and 27 more. Substitute compatibility should be verified for your specific system.
Is LA157-1 still available?
LA157-1 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