PartsTable
Technical Data Sheet
PartsTable / COMPONENT / FF-B-187/01-538

FF-B-187/01-538 — 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 CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL RETAINER, cup_width: 1.4375 INCHES NOMINAL IN, cone_width: 1.8375 INCHES NOMINAL IN, bore_diameter: 2.7500 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 3110-00-100-0337, 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-187/01-538
NSN: 3110-00-100-0337
FSC: 3110
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL RETAINER
cup_width1.4375 INCHES NOMINAL IN
cone_width1.8375 INCHES NOMINAL IN
bore_diameter2.7500 INCHES NOMINAL IN
overall_width1.7500 INCHES NOMINAL IN
standout_width0.3125 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, NORMAL ANGLE
cone_corner_radius0.1400 INCHES NOMINAL IN
backface_corner_radius0.1300 INCHES NOMINAL IN
overall_outside_diameter5.9090 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 4
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE CUP
NSN3110-00-100-0337
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: FF-B-187/01-538 · 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
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 35
2370431G4Interchangeable
interchangeable cross-reference
interchangeable
03-0803-7465Interchangeable
interchangeable cross-reference
interchangeable
30104Interchangeable
interchangeable cross-reference
interchangeable
GS570DG1Interchangeable
interchangeable cross-reference
interchangeable
742Interchangeable
interchangeable cross-reference
interchangeable
51G1300Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy FF-B-187/01-538?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is FF-B-187/01-538?
FF-B-187/01-538 is a CUP,TAPERED ROLLER BEARING.
What parts can replace FF-B-187/01-538?
There are 35 known substitutes for FF-B-187/01-538: 2370431G4, 03-0803-7465, 30104 and 32 more. Substitute compatibility should be verified for your specific system.
Is FF-B-187/01-538 still available?
FF-B-187/01-538 is currently cancelled.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — FF-B-187/01-538

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026