PartsTable
Technical Data Sheet
55SD23 ✓ Verified by PartsTable
· 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

The BEARING,ROLLER,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: STEEL COMP E51100 OR STEEL COMP E52100 OUTER RING, bore_shape: STRAIGHT, bore_diameter: 55.0 MILLIMETERS NOMINAL MM, overall_width: 43.0 MILLIMETERS NOMINAL MM, surface_finish: GROUND, special_features: OIL HOLES AND GROOVE IN OUTER RING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-1426, 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
55SD23
NSN: 3110-00-156-1426
FSC: 3110
CAGE: 70413 — ANTI-FRICTION BEARING MFG ASSN INC THE (USA)
SPECIFICATIONS
materialSTEEL COMP E51100 OR STEEL COMP E52100 OUTER RING
bore_shapeSTRAIGHT
bore_diameter55.0 MILLIMETERS NOMINAL MM
overall_width43.0 MILLIMETERS NOMINAL MM
surface_finishGROUND
special_featuresOIL HOLES AND GROOVE IN OUTER RING
style_designatorDOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE
overall_outside_diameter120.0 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
standard_tolerance_designationRBEC NO.1
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OUTER RING
NSN3110-00-156-1426
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 55SD23 · OEM ⚠ 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
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES ROLLER
MATERIAL: STEEL COMP E51100 OR STEEL COMP E52100 ROLLER
STYLE DESIGNATOR: DOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL FIT-UP DESIGNATIONSTANDARD
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES ROLLER
MATERIALSTEEL COMP E51100 OR STEEL COMP E52100 ROLLER
MATERIALSTEEL COMP E51100 OR STEEL COMP E52100 INNER RING
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES INNER RING
STYLE DESIGNATORDOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OUTER RING
MATERIALSTEEL COMP E51100 OR STEEL COMP E52100 OUTER RING
MATERIALALUMINUM OR COPPER ALLOY OR STEEL RETAINER
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
22311Interchangeable
interchangeable cross-reference
interchangeable
110-100Interchangeable
interchangeable cross-reference
interchangeable
7141572Interchangeable
interchangeable cross-reference
interchangeable
ME-176Interchangeable
interchangeable cross-reference
interchangeable
201001Interchangeable
interchangeable cross-reference
interchangeable
17-6840-500-425Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55SD23?
55SD23 is a BEARING,ROLLER,SELF-ALIGNING.
What parts can replace 55SD23?
There are 22 known substitutes for 55SD23: 22311, 110-100, 7141572 and 19 more. Substitute compatibility should be verified for your specific system.
Is 55SD23 still available?
55SD23 is currently cancelled.
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