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107-8559 — BEARING UNIT,PLAIN

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

107-8559: BEARING UNIT,PLAIN.

The BEARING UNIT,PLAIN is a the manufacturer industrial component. Key specifications include housing_height: 0.43 INCHES NOMINAL IN, housing_length: 2.10 INCHES NOMINAL IN, special_features: DESIGNED TO FIT J550 TIPS AND ADAPTERS; COLOR: IVORY;, end_item_identification: EXCAVATOR, CRAWLER, part_name_assigned_by_controlling_agency: RETAINER. This part is cataloged in the U.S.

Government catalog under NSN 3130-01-723-4052, 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
107-8559
NSN: 3130-01-723-4052
FSC: 3130 — Bearings, Mounted
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
housing_height0.43 INCHES NOMINAL IN
housing_length2.10 INCHES NOMINAL IN
special_featuresDESIGNED TO FIT J550 TIPS AND ADAPTERS; COLOR: IVORY;
end_item_identificationEXCAVATOR, CRAWLER
part_name_assigned_by_controlling_agencyRETAINER
NSN3130-01-723-4052
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 107-8559 · 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
•
HOUSING HEIGHT: 0.43 INCHES NOMINAL IN
•
HOUSING LENGTH: 2.10 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HOUSING HEIGHT0.43 INCHES NOMINAL IN
SPECIAL FEATURESDESIGNED TO FIT J550 TIPS AND ADAPTERS; COLOR: IVORY;
PART NAME ASSIGNED BY CONTROLLING AGENCYRETAINER
END ITEM IDENTIFICATIONEXCAVATOR, CRAWLER
HOUSING LENGTH2.10 INCHES NOMINAL IN
OTHER ITEMS IN FSC 3130 — Bearings, Mounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3130-00-001-5118 3130-00-001-5137 3130-00-001-6585 3130-00-003-0422 3130-00-003-0455 3130-00-003-0794 3130-00-003-2802 3130-00-003-9535
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 107-8559?
107-8559 is a BEARING UNIT,PLAIN.
What is the NSN for 107-8559?
107-8559 is cataloged in the U.S. Government catalog under NSN 3130-01-723-4052. 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.