PartsTable
Technical Data Sheet
55127 ✓ 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 color: GRAY/GREY SINGLE ACTUATOR, material: STEEL COMP E52100 INNER MEMBER, body_style: PANEL MOUNT, body_width: 0.830 INCHES NOMINAL IN, body_height: 1.125 INCHES NOMINAL IN, body_length: 1.450 INCHES NOMINAL 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 3120-00-229-0285, 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
55127
NSN: 3120-00-229-0285
FSC: 3120
CAGE: 09455 — RBC TRANSPORT DYNAMICS CORP DIV RBC TRANSPORT DYNAMICS (USA)
SPECIFICATIONS
colorGRAY/GREY SINGLE ACTUATOR
materialSTEEL COMP E52100 INNER MEMBER
body_stylePANEL MOUNT
body_width0.830 INCHES NOMINAL IN
body_height1.125 INCHES NOMINAL IN
body_length1.450 INCHES NOMINAL IN
bore_diameter0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
actuator_styleRECTANGULAR
actuator_width0.625 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
actuator_length1.240 INCHES NOMINAL IN
hardness_rating23.0 ROCKWELL C MINIMUM OUTER RACE MEMBER
NSN3120-00-229-0285
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 55127 · 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
STATIC RADIAL LOAD RATING: 8400 POUNDS LBS
OUTER MEMBER OUTSIDE DIAMETER: 0.6557 INCHES MINIMUM AND 0.6562 INCHES MAXIMUM IN
INNER MEMBER WIDTH: 0.3380 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
MATERIAL: STEEL COMP E52100 INNER MEMBER
OUTER MEMBER WIDTH: 0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN
SURFACE TREATMENT: CHROMIUM INNER MEMBER
TECHNICAL CHARACTERISTICS (FLIS)
STATIC RADIAL LOAD RATING8400 POUNDS LBS
OUTER MEMBER OUTSIDE DIAMETER0.6557 INCHES MINIMUM AND 0.6562 INCHES MAXIMUM IN
INNER MEMBER WIDTH0.3380 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN
MATERIALSTEEL COMP E52100 INNER MEMBER
OUTER MEMBER WIDTH0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING OUTER RACE MEMBER
MATERIALGREASE AND DISULFIDE MOLYBDENUM LUBRICATION
SURFACE TREATMENTCHROMIUM INNER MEMBER
STYLE DESIGNATORWITHOUT INSERT OR LINER
HARDNESS RATING55.0 ROCKWELL C MINIMUM INNER MEMBER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
55127Interchangeable
interchangeable cross-reference
interchangeable
A31555PC55127Interchangeable
interchangeable cross-reference
interchangeable
NG4Interchangeable
interchangeable cross-reference
interchangeable
919-012020Interchangeable
interchangeable cross-reference
interchangeable
919-012022Interchangeable
interchangeable cross-reference
interchangeable
2E-35127Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55127?
55127 is a BEARING,PLAIN,SELF-ALIGNING manufactured by Mobiparts.
What parts can replace 55127?
There are 8 known substitutes for 55127: 55127, A31555PC55127, NG4 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 55127?
55127 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-229-0285. This indicates validated use in U.S. government and defense supply chains.
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