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Technical Data Sheet
PartsTable / COMPONENT / 55550
55550 ✓ Verified by PartsTable
Esselte · 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

- Adapter-Set contains 2x IB-PL550<br>- Ethernet-Connection (RJ45)<br>- Up to 500 Mbit/s bandwidth *<br>- AES 128 Bit encryption<br>- Ready for use without software-installation (Plug & Play)<br>- Energy effi cient: < 1 watt in standby mode<br>- Very small dimensions This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-554-6051, 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
55550
NSN: 3110-00-554-6051
FSC: 3110
CAGE: 76894 — CELTRAC CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter30.0 MILLIMETERS NOMINAL MM
overall_width19.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
overall_outside_diameter72.0 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.1
NSN3110-00-554-6051
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 55550 · Esselte ⚠ 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
KEY FEATURES
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
MATERIAL: STEEL OVERALL
•
RETAINER FABRICATION METHOD: PRESSED
•
BORE DIAMETER: 30.0 MILLIMETERS NOMINAL MM
•
LOAD DIRECTION: RADIAL
•
BORE SHAPE: STRAIGHT
•
SURFACE FINISH: GROUND
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL FIT-UP DESIGNATIONSTANDARD
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL OVERALL
RETAINER FABRICATION METHODPRESSED
BORE DIAMETER30.0 MILLIMETERS NOMINAL MM
LOAD DIRECTIONRADIAL
BORE SHAPESTRAIGHT
SURFACE FINISHGROUND
STANDARD TOLERANCE DESIGNATIONABEC NO.1
OVERALL WIDTH19.0 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
1447Interchangeable
interchangeable cross-reference
interchangeable
PPP-B-636 TYCFVASWGR275STRSCCLDOInterchangeable
interchangeable cross-reference
interchangeable
PPP-B-636Interchangeable
interchangeable cross-reference
interchangeable
ASTM-D5118 TYCFVASWGR275STRSCCLDInterchangeable
interchangeable cross-reference
interchangeable
1420-0259Interchangeable
interchangeable cross-reference
interchangeable
3M40Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55550?
55550 is a BEARING,BALL,ANNULAR manufactured by Esselte.
What parts can replace 55550?
There are 28 known substitutes for 55550: 1447, PPP-B-636 TYCFVASWGR275STRSCCLDO, PPP-B-636 and 25 more. Substitute compatibility should be verified for your specific system.
Is 55550 still available?
55550 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