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Technical Data Sheet
PartsTable / COMPONENT / 128570/128571
128570/128571 ✓ 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 128570/128571 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-082-0444, 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
128570/128571
NSN: 3110-00-082-0444
FSC: 3110
CAGE: 79938 — EMERSON ELECTRIC CO U S ELECTRICAL MOTORS DIV (USA)
SPECIFICATIONS
Part Number128570/128571
NSN3110-00-082-0444
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 128570/128571 · 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
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
CUP WIDTH: 0.5625 INCHES NOMINAL IN
•
CONE WIDTH: 0.8125 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.0460 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
BORE DIAMETER: 1.2500 INCHES NOMINAL IN
•
OVERALL OUTSIDE DIAMETER: 2.4410 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
CUP WIDTH0.5625 INCHES NOMINAL IN
CONE WIDTH0.8125 INCHES NOMINAL IN
CONE CORNER RADIUS0.0460 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
BORE DIAMETER1.2500 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER2.4410 INCHES NOMINAL IN
OVERALL WIDTH0.8125 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
BACKFACE CORNER RADIUS0.1400 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
BT15125Interchangeable
interchangeable cross-reference
interchangeable
15125Interchangeable
interchangeable cross-reference
interchangeable
FFB187/01-092Interchangeable
interchangeable cross-reference
interchangeable
143116Interchangeable
Same NIIN cross-reference
interchangeable
AA59649-092Interchangeable
Same NIIN cross-reference
interchangeable
3110000820444Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 128570/128571?
128570/128571 is a 128570/128571.
What parts can replace 128570/128571?
There are 11 known substitutes for 128570/128571: BT15125, 15125, FFB187/01-092 and 8 more. Substitute compatibility should be verified for your specific system.
Is 128570/128571 still available?
128570/128571 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