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8712186 — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

8712186: 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 OVERALL, cup_width: 0.0260 INCHES MINIMUM AND 0.0360 INCHES MAXIMUM IN, cone_width: 1.2500 INCHES NOMINAL IN, bore_diameter: 1.6875 INCHES MINIMUM AND 1.6880 INCHES MAXIMUM IN, overall_width: 1.3750 INCHES NOMINAL IN, style_designator: STRAIGHT BORE, DOUBLE CONE, SINGLE CUPS, STEEP ANGLE. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-070-5667, 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
8712186
NSN: 3110-00-070-5667
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width0.0260 INCHES MINIMUM AND 0.0360 INCHES MAXIMUM IN
cone_width1.2500 INCHES NOMINAL IN
bore_diameter1.6875 INCHES MINIMUM AND 1.6880 INCHES MAXIMUM IN
overall_width1.3750 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, DOUBLE CONE, SINGLE CUPS, STEEP ANGLE
cone_corner_radius0.0310 INCHES NOMINAL IN
lubrication_materialGREASE
backface_corner_radius0.0620 INCHES NOMINAL IN
overall_outside_diameter3.1875 INCHES MINIMUM AND 3.1885 INCHES MAXIMUM IN
lubrication_material_document_and_classification-1L-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
NSN3110-00-070-5667
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 8712186 · 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
•
LUBRICATION MATERIAL: GREASE
•
CUP WIDTH: 0.0260 INCHES MINIMUM AND 0.0360 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: STRAIGHT BORE, DOUBLE CONE, SINGLE CUPS, STEEP ANGLE
•
OVERALL OUTSIDE DIAMETER: 3.1875 INCHES MINIMUM AND 3.1885 INCHES MAXIMUM IN
•
BACKFACE CORNER RADIUS: 0.0620 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.0310 INCHES NOMINAL IN
•
CONE WIDTH: 1.2500 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
LUBRICATION MATERIALGREASE
CUP WIDTH0.0260 INCHES MINIMUM AND 0.0360 INCHES MAXIMUM IN
STYLE DESIGNATORSTRAIGHT BORE, DOUBLE CONE, SINGLE CUPS, STEEP ANGLE
OVERALL WIDTH1.3750 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER3.1875 INCHES MINIMUM AND 3.1885 INCHES MAXIMUM IN
BACKFACE CORNER RADIUS0.0620 INCHES NOMINAL IN
CONE CORNER RADIUS0.0310 INCHES NOMINAL IN
CONE WIDTH1.2500 INCHES NOMINAL IN
BORE DIAMETER1.6875 INCHES MINIMUM AND 1.6880 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8712186?
8712186 is a BEARING,ROLLER,TAPERED.
What is the NSN for 8712186?
8712186 is cataloged in the U.S. Government catalog under NSN 3110-00-070-5667. 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.