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Technical Data Sheet
PartsTable / COMPONENT / LB
LB ✓ 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,LINEAR MOTION is a the manufacturer industrial component. Key specifications include phase: SINGLE, material: STEEL CORROSION RESISTING SPRING, seal_width: 0.250 INCHES NOMINAL IN, construction: SOLID, current_type: AC, power_source: ELECTRIC MOTOR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-198-2801, 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
LB
NSN: 3110-00-198-2801
FSC: 3110
CAGE: 70854 — SCHAEFFLER AEROSPACE USA CORP DIV SCHAEFFLER AEROSPACE USA CORPORATION (USA)
SPECIFICATIONS
phaseSINGLE
materialSTEEL CORROSION RESISTING SPRING
quantity1
seal_width0.250 INCHES NOMINAL IN
constructionSOLID
current_typeAC
power_sourceELECTRIC MOTOR
overall_length1.2350 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
surface_finishGROUND
special_featuresFOR USE WITH DEFIBRILLATOR, EXTERNAL, AUTOMATIC, NSN 6515-01-459-3821, 6515-01-459-3831 AND 6515-01-459-3834
voltage_in_volts110.0
horsepower_rating0.250
NSN3110-00-198-2801
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: LB · 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
•
SURFACE FINISH: GROUND
•
OVERALL OUTSIDE DIAMETER: 0.8746 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
•
WORKING BORE DIAMETER: 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER0.8746 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
OVERALL LENGTH1.2350 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
WORKING BORE DIAMETER0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
LBInterchangeable
interchangeable cross-reference
interchangeable
303615Interchangeable
interchangeable cross-reference
interchangeable
55875Interchangeable
interchangeable cross-reference
interchangeable
55875AInterchangeable
interchangeable cross-reference
interchangeable
SM-C-187638Interchangeable
interchangeable cross-reference
interchangeable
FSKInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LB?
LB is a BEARING,BALL,LINEAR MOTION.
What parts can replace LB?
There are 16 known substitutes for LB: LB, 303615, 55875 and 13 more. Substitute compatibility should be verified for your specific system.
Is LB still available?
LB 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