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Technical Data Sheet
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FF-B-171/30 — Technical Data Sheet

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— · 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 COMP E52100 BALL, bore_shape: STRAIGHT, bore_diameter: 140.0 MILLIMETERS NOMINAL MM, contact_angle: 40.0 DEGREES NOMINAL, overall_width: 62.0 MILLIMETERS NOMINAL MM, load_direction: ANGULAR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-108-9178, 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-171/30
NSN: 3110-00-108-9178
FSC: 3110
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 BALL
bore_shapeSTRAIGHT
bore_diameter140.0 MILLIMETERS NOMINAL MM
contact_angle40.0 DEGREES NOMINAL
overall_width62.0 MILLIMETERS NOMINAL MM
seal_quantity2
load_directionANGULAR
surface_finishGROUND
special_featuresPAIR OF BEARINGS
style_designatorCOUNTERBORED OUTER RING, NON-SEPARABLE
bearing_seal_typeCONTACT
lubrication_materialGREASE
NSN3110-00-108-9178
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FF-B-171/30 · 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: ABEC NO.1
•
SEAL QUANTITY: 2
•
MATERIAL: STEEL BALL
•
SURFACE FINISH: GROUND
•
BEARING SEAL TYPE: CONTACT
TECHNICAL CHARACTERISTICS (FLIS)
STANDARD TOLERANCE DESIGNATIONABEC NO.1
SEAL QUANTITY2
MATERIALSTEEL BALL
MATERIALSTEEL RETAINER
MATERIALSTEEL OUTER RING
SURFACE FINISHGROUND
MATERIALSTEEL INNER RING
BEARING SEAL TYPECONTACT
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
LOAD DIRECTIONRADIAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
7308DTBRZRETInterchangeable
interchangeable cross-reference
interchangeable
7308BGM2BRGSInterchangeable
interchangeable cross-reference
interchangeable
7308DBDFDTMACHINEDBRZRETInterchangeable
interchangeable cross-reference
interchangeable
155113105Interchangeable
interchangeable cross-reference
interchangeable
7309BInterchangeable
interchangeable cross-reference
interchangeable
7313Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-B-171/30?
FF-B-171/30 is a BEARING,BALL,ANNULAR.
What parts can replace FF-B-171/30?
There are 30 known substitutes for FF-B-171/30: 7308DTBRZRET, 7308BGM2BRGS, 7308DBDFDTMACHINEDBRZRET and 27 more. Substitute compatibility should be verified for your specific system.
Is FF-B-171/30 still available?
FF-B-171/30 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: September 2026