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Technical Data Sheet
PartsTable / COMPONENT / FF-B-187/01-493
FF-B-187/01-493 ✓ 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 FF-B-187/01-493 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-143-7538, 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
FF-B-187/01-493
NSN: 3110-00-143-7538
FSC: 3110
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
Part NumberFF-B-187/01-493
NSN3110-00-143-7538
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FF-B-187/01-493 · 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
•
BORE DIAMETER: 2.6250 INCHES NOMINAL IN
•
CONE WIDTH: 1.1875 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.1406 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: NORMAL ANGLE
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESAXIAL DISTANCE BETWEEN CENTER OF ROLLER CONTACT LINE AND CONE STABILITY POINT ON SHAFT AXIS 0.2600 IN. IN
BORE DIAMETER2.6250 INCHES NOMINAL IN
CONE WIDTH1.1875 INCHES NOMINAL IN
CONE CORNER RADIUS0.1406 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
39590Interchangeable
interchangeable cross-reference
interchangeable
E1134-16-10Interchangeable
interchangeable cross-reference
interchangeable
26688Interchangeable
interchangeable cross-reference
interchangeable
26155Interchangeable
interchangeable cross-reference
interchangeable
WS9030PCS24-25Interchangeable
interchangeable cross-reference
interchangeable
5050D3051Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-B-187/01-493?
FF-B-187/01-493 is a FF-B-187/01-493.
What parts can replace FF-B-187/01-493?
There are 26 known substitutes for FF-B-187/01-493: 39590, E1134-16-10, 26688 and 23 more. Substitute compatibility should be verified for your specific system.
Is FF-B-187/01-493 still available?
FF-B-187/01-493 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