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Technical Data Sheet
PartsTable / COMPONENT / 1B6580
1B6580 ✓ 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 length: 106.0 MILLIMETERS NOMINAL MM, material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL, bore_type: STRAIGHT, nut_style: HEXAGON, body_style: STRAIGHT SHAPE, INTERNAL COUPLING W/STRAIN RELIEF, head_style: FLAT CHAMFER. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0624, 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
1B6580
NSN: 3110-00-100-0624
FSC: 3110
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
length106.0 MILLIMETERS NOMINAL MM
materialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL
bore_typeSTRAIGHT
nut_styleHEXAGON
body_styleSTRAIGHT SHAPE, INTERNAL COUPLING W/STRAIN RELIEF
head_styleFLAT CHAMFER
nut_height0.188 INCHES NOMINAL IN
port_styleINVERTED FLARE SINGLE PORT
shell_typeSOLID
body_length2.750 INCHES NOMINAL IN
head_height0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
thread_class3A A
NSN3110-00-100-0624
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1B6580 · 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 24
301-30Interchangeable
interchangeable cross-reference
interchangeable
A79Interchangeable
interchangeable cross-reference
interchangeable
GGG-C-755Interchangeable
interchangeable cross-reference
interchangeable
10240Interchangeable
interchangeable cross-reference
interchangeable
6550FInterchangeable
interchangeable cross-reference
interchangeable
J1250Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1B6580?
1B6580 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 1B6580?
There are 24 known substitutes for 1B6580: 301-30, A79, GGG-C-755 and 21 more. Substitute compatibility should be verified for your specific system.
Is 1B6580 still available?
1B6580 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026