PartsTable
Technical Data Sheet

FFB187/01-614 — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

FFB187/01-614: BEARING,ROLLER,TAPERED.

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 COMP E52100 OR STEEL COMP 4320 OR STEEL COMP 4620 OR STEEL COMP 8620 OVERALL, cup_width: 1.1250 INCHES NOMINAL IN, cone_width: 1.4212 INCHES NOMINAL IN, bore_diameter: 3.2500 INCHES NOMINAL IN, overall_width: 1.4375 INCHES NOMINAL IN, standout_width: 0.3125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-0643, 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
FFB187/01-614
NSN: 3110-00-100-0643
NIINs: 001000643, 001004218
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 OR STEEL COMP 4320 OR STEEL COMP 4620 OR STEEL COMP 8620 OVERALL
cup_width1.1250 INCHES NOMINAL IN
cone_width1.4212 INCHES NOMINAL IN
bore_diameter3.2500 INCHES NOMINAL IN
overall_width1.4375 INCHES NOMINAL IN
standout_width0.3125 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, NORMAL ANGLE
cone_corner_radius0.1400 INCHES NOMINAL IN
backface_corner_radius0.1250 INCHES NOMINAL IN
overall_outside_diameter5.5115 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 4
NSN3110-00-100-0643
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FFB187/01-614 · 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
•
STYLE DESIGNATOR: NORMAL ANGLE
•
CONE CORNER RADIUS: 0.1406 INCHES NOMINAL IN
•
CONE WIDTH: 1.4212 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BORE DIAMETER: 3.2500 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
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
STYLE DESIGNATORNORMAL ANGLE
CONE CORNER RADIUS0.1406 INCHES NOMINAL IN
CONE WIDTH1.4212 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER3.2500 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 9
0043010-8Reference document
Same NSN cross-reference
Reference document — Secondary reference
67190R91Reference document
Same NSN cross-reference
Reference document — Secondary reference
457294Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MA1755Reference document
Same NSN cross-reference
Reference document — Secondary reference
B8QH 1240-BReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
9413213Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is FFB187/01-614?
FFB187/01-614 is a BEARING,ROLLER,TAPERED.
What parts can replace FFB187/01-614?
There are 9 known substitutes for FFB187/01-614: 0043010-8, 67190R91, 457294 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FFB187/01-614?
FFB187/01-614 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0643. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.