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Technical Data Sheet
PartsTable / COMPONENT / FF-B-185
FF-B-185 ✓ 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,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY SEPARATOR, bore_shape: STRAIGHT, bore_diameter: 25.0 MILLIMETERS NOMINAL MM, overall_width: 15.0 MILLIMETERS NOMINAL MM, surface_finish: GROUND, locating_feature: ONE DIRECTION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-075-5134, 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-185
NSN: 3110-00-075-5134
FSC: 3110
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialCOPPER ALLOY SEPARATOR
bore_shapeSTRAIGHT
bore_diameter25.0 MILLIMETERS NOMINAL MM
overall_width15.0 MILLIMETERS NOMINAL MM
surface_finishGROUND
locating_featureONE DIRECTION
outer_ring_width20.0 MILLIMETERS NOMINAL MM
special_featuresONE LIP OF INNER RING SEPARABLE
style_designatorSINGLE ROW, ONE-DIRECTION LOCATING, ONE LIP INNER RING, TWO LIP OUTER RING, SEPARABLE
internal_clearance0.0037 INCHES MINIMUM RADIAL AND 0.0054 INCHES MAXIMUM RADIAL IN
end_item_identificationMULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
overall_outside_diameter52.0 MILLIMETERS NOMINAL MM
NSN3110-00-075-5134
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FF-B-185 · 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
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
NONDEFINITIVE SPEC/STD DATA: 00 GRADE AND 6 CLASS AND 264 TYPE
•
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY BORE DIA. AND SPECIAL FEATURES
•
STYLE DESIGNATOR: DOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
OVERALL OUTSIDE DIAMETER: 200.00 MILLIMETERS NOMINAL MM
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL FIT-UP DESIGNATIONSTANDARD
NONDEFINITIVE SPEC/STD DATA00 GRADE AND 6 CLASS AND 264 TYPE
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY BORE DIA. AND SPECIAL FEATURES
STYLE DESIGNATORDOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE
MATERIALSTEEL CORROSION RESISTING OVERALL
OVERALL OUTSIDE DIAMETER200.00 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONABEC NO.1
BORE SHAPESTRAIGHT
OVERALL WIDTH53.00 MILLIMETERS NOMINAL MM
SPECIAL FEATURESW/3.9375 IN. STRAIGHT BORE ADAPTER COMPLETE W/NUT AND LOCKWASHER IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES

No verified substitutes available.

LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-B-185?
FF-B-185 is a BEARING,ROLLER,SELF-ALIGNING.
What is the NSN for FF-B-185?
FF-B-185 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-075-5134. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026