PartsTable
Technical Data Sheet
55210 ✓ Verified by PartsTable
Mobiparts · 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

The BEARING,PLAIN,SELF-ALIGNING is a Mobiparts industrial component. Key specifications include material: COPPER ALLOY OUTER RACE MEMBER, bore_diameter: 0.1895 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN, connection_type: THREADED EXTERNAL PIPE SECOND END, style_designator: WITHOUT INSERT OR LINER, surface_treatment: CADMIUM OUTER RACE MEMBER, inner_member_width: 0.2760 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-063-2934, 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
55210
NSN: 3120-00-063-2934
FSC: 3120
CAGE: 09455 — RBC TRANSPORT DYNAMICS CORP DIV RBC TRANSPORT DYNAMICS (USA)
SPECIFICATIONS
materialCOPPER ALLOY OUTER RACE MEMBER
bore_diameter0.1895 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN
connection_typeTHREADED EXTERNAL PIPE SECOND END
style_designatorWITHOUT INSERT OR LINER
surface_treatmentCADMIUM OUTER RACE MEMBER
inner_member_width0.2760 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN
outer_member_width0.2180 INCHES NOMINAL IN
lubrication_featureGROOVE INTERNAL INNER MEMBER
end_connection_designELBOW SECOND END
end_item_identificationDEAN/ALCO FILTERING UNIT
inside_surface_conditionSMOOTH
thread_series_designatorNPT FIRST END
NSN3120-00-063-2934
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 55210 · Mobiparts ⚠ 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
MATERIAL: STEEL COMP E52100 INNER MEMBER
LUBRICATION FEATURE: PERFORATION OUTER RACE MEMBER
SURFACE TREATMENT: CHROMIUM INNER MEMBER
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP E52100 INNER MEMBER
LUBRICATION FEATUREPERFORATION OUTER RACE MEMBER
SURFACE TREATMENTCHROMIUM INNER MEMBER
SURFACE TREATMENTCADMIUM OUTER RACE MEMBER
LUBRICATION FEATUREGROOVE EXTERNAL OUTER MEMBER
LUBRICATION FEATUREGROOVE INTERNAL OUTER MEMBER
MATERIALCOPPER ALLOY OUTER RACE MEMBER
LUBRICATION FEATUREPERFORATION INNER MEMBER
OUTER MEMBER WIDTH0.2180 INCHES NOMINAL IN
LUBRICATION FEATUREGROOVE INTERNAL INNER MEMBER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
55-210Interchangeable
interchangeable cross-reference
interchangeable
55-05-0210Interchangeable
interchangeable cross-reference
interchangeable
J25323-7Interchangeable
interchangeable cross-reference
interchangeable
J-25323-101AInterchangeable
interchangeable cross-reference
interchangeable
AG3SP17Interchangeable
Same NIIN cross-reference
interchangeable
RPG-3AInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55210?
55210 is a BEARING,PLAIN,SELF-ALIGNING manufactured by Mobiparts.
What parts can replace 55210?
There are 9 known substitutes for 55210: 55-210, 55-05-0210, J25323-7 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 55210?
55210 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-063-2934. This indicates validated use in U.S. government and defense supply chains.
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