PartsTable
Technical Data Sheet

FFB187/01-175 — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

FFB187/01-175: 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 4320 OR STEEL COMP 4620 OR STEEL COMP 8620 OR STEEL COMP E52100 ROLLER, cup_width: 0.5938 INCHES NOMINAL IN, cone_width: 0.7500 INCHES NOMINAL IN, bore_diameter: 1.5000 INCHES NOMINAL IN, overall_width: 0.7500 INCHES NOMINAL IN, standout_width: 0.1562 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-5993, 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
FFB187/01-175
NSN: 3110-00-100-5993
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL COMP 4320 OR STEEL COMP 4620 OR STEEL COMP 8620 OR STEEL COMP E52100 ROLLER
cup_width0.5938 INCHES NOMINAL IN
cone_width0.7500 INCHES NOMINAL IN
bore_diameter1.5000 INCHES NOMINAL IN
overall_width0.7500 INCHES NOMINAL IN
standout_width0.1562 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, NORMAL ANGLE
cone_corner_radius0.1400 INCHES NOMINAL IN
backface_corner_radius0.0930 INCHES NOMINAL IN
overall_outside_diameter2.7170 INCHES NOMINAL IN
nondefinitive_spec/std_data751 TYPE
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-100-5993
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FFB187/01-175 · 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
•
CUP WIDTH: 0.5938 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT BORE, NORMAL ANGLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OR 66 FED STD SINGLE MATERIAL RESPONSE CONE
•
OVERALL OUTSIDE DIAMETER: 2.7170 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0930 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
CUP WIDTH0.5938 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OR 66 FED STD SINGLE MATERIAL RESPONSE CONE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OR 66 FED STD SINGLE MATERIAL RESPONSE CUP
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OR 66 FED STD SINGLE MATERIAL RESPONSE ROLLER
OVERALL WIDTH0.7500 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER2.7170 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0930 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA751 TYPE
CONE CORNER RADIUS0.1400 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 6
SK203-66Reference document
Same NSN cross-reference
Reference document — Secondary reference
112-5-22Reference document
Same NSN cross-reference
Reference document — Secondary reference
13685-13621Reference document
Same NSN cross-reference
Reference document — Secondary reference
A-A-59649Reference document
Same NSN cross-reference
Reference document — Identification reference
AA59649-175Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MS19081-45Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is FFB187/01-175?
FFB187/01-175 is a BEARING,ROLLER,TAPERED.
What parts can replace FFB187/01-175?
There are 6 known substitutes for FFB187/01-175: SK203-66, 112-5-22, 13685-13621 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FFB187/01-175?
FFB187/01-175 is cataloged in the U.S. Government catalog under NSN 3110-00-100-5993. 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.