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Technical Data Sheet
PartsTable / COMPONENT / 4D2156
4D2156 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: STEEL OVERALL, cone_width: 1.1420 INCHES NOMINAL IN, bore_diameter: 2.6875 INCHES NOMINAL IN, style_designator: NORMAL ANGLE, cone_corner_radius: 0.1406 INCHES NOMINAL IN, standard_tolerance_designation: AFBMA CLASS 2. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-00-084-7530, 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
4D2156
NSN: 3130-00-084-7530
FSC: 3130
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width1.1420 INCHES NOMINAL IN
bore_diameter2.6875 INCHES NOMINAL IN
style_designatorNORMAL ANGLE
cone_corner_radius0.1406 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3130-00-084-7530
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 4D2156 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FEATURES PROVIDED: REMOVABLE LINER
•
MATERIAL: STEEL OVERALL
•
BORE DIAMETER: 2.0000 INCHES MINIMUM AND 2.0006 INCHES MAXIMUM IN
•
ALIGNMENT TYPE: RIGID
•
HOUSING LENGTH: 2.3800 INCHES MINIMUM AND 2.3980 INCHES MAXIMUM IN
•
LOAD CAPABILITY TYPE: RADIAL AND THRUST
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 (FLIS)
FEATURES PROVIDEDREMOVABLE LINER
MATERIALSTEEL OVERALL
BORE DIAMETER2.0000 INCHES MINIMUM AND 2.0006 INCHES MAXIMUM IN
ALIGNMENT TYPERIGID
HOUSING LENGTH2.3800 INCHES MINIMUM AND 2.3980 INCHES MAXIMUM IN
LOAD CAPABILITY TYPERADIAL AND THRUST
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
480Interchangeable
interchangeable cross-reference
interchangeable
K480Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4D2156?
4D2156 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 4D2156?
There are 2 known substitutes for 4D2156: 480, K480. Substitute compatibility should be verified for your specific system.
What is the NSN for 4D2156?
4D2156 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-00-084-7530. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026