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Technical Data Sheet
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FF-B-187/01-626 — Technical Data Sheet

✓ 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,TAPERED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, cup_width: 1.4375 INCHES NOMINAL IN, cone_width: 1.8375 INCHES NOMINAL IN, bore_diameter: 3.3475 INCHES NOMINAL IN, overall_width: 1.7500 INCHES NOMINAL IN, standout_width: 0.3125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0683, 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-187/01-626
NSN: 3110-00-100-0683
FSC: 3110
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width1.4375 INCHES NOMINAL IN
cone_width1.8375 INCHES NOMINAL IN
bore_diameter3.3475 INCHES NOMINAL IN
overall_width1.7500 INCHES NOMINAL IN
standout_width0.3125 INCHES NOMINAL IN
style_designatorNORMAL ANGLE
cone_corner_radius0.1406 INCHES NOMINAL IN
backface_corner_radius0.1300 INCHES NOMINAL IN
end_item_identificationMRAP MAXXPRO
overall_outside_diameter5.9090 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-100-0683
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FF-B-187/01-626 · 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
•
CONE WIDTH: 1.8375 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BORE DIAMETER: 3.3475 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
•
CONE CORNER RADIUS: 0.1406 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
CONE WIDTH1.8375 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYBEARING,CONE OTR WHL
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER3.3475 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
CONE CORNER RADIUS0.1406 INCHES NOMINAL IN
END ITEM IDENTIFICATIONMRAP MAXXPRO
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
749Interchangeable
interchangeable cross-reference
interchangeable
170Interchangeable
interchangeable cross-reference
interchangeable
21FInterchangeable
interchangeable cross-reference
interchangeable
3110001004407Interchangeable
interchangeable cross-reference
interchangeable
00024-0036Interchangeable
interchangeable cross-reference
interchangeable
GTE-150-15Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-B-187/01-626?
FF-B-187/01-626 is a BEARING,ROLLER,TAPERED.
What parts can replace FF-B-187/01-626?
There are 29 known substitutes for FF-B-187/01-626: 749, 170, 21F and 26 more. Substitute compatibility should be verified for your specific system.
Is FF-B-187/01-626 still available?
FF-B-187/01-626 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: September 2026