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Technical Data Sheet
PartsTable / COMPONENT / TB-550
TB-550 ✓ 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

ISOLATOR,RADIO FREQUENCY REFLECT. Key specifications include material: COPPER ALLOY RETAINER, bore_diameter: 5.5100 INCHES NOMINAL IN, outside_diameter: 7.2400 INCHES NOMINAL IN, special_features: 450 GPM,800 PSI,9300 RPM RPM, style_designator: RETAINER AND ROLLERS, THRUST, rolling_element_diameter: 0.3750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-151-8532, 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
TB-550
NSN: 3110-00-151-8532
FSC: 3110
CAGE: 43334 — GENERAL MOTORS CORP DELCO MORAINE NDH DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY RETAINER
bore_diameter5.5100 INCHES NOMINAL IN
outside_diameter7.2400 INCHES NOMINAL IN
special_features450 GPM,800 PSI,9300 RPM RPM
style_designatorRETAINER AND ROLLERS, THRUST
retainer_piece_quantity2
rolling_element_diameter0.3750 INCHES NOMINAL IN
NSN3110-00-151-8532
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: TB-550 · 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
•
STYLE DESIGNATOR: RETAINER AND ROLLERS, THRUST
•
RETAINER PIECE QUANTITY: 2
•
MATERIAL: COPPER ALLOY RETAINER
•
ROLLING ELEMENT DIAMETER: 0.3750 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 7.2400 INCHES NOMINAL IN
•
BORE DIAMETER: 5.5100 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORRETAINER AND ROLLERS, THRUST
RETAINER PIECE QUANTITY2
MATERIALCOPPER ALLOY RETAINER
ROLLING ELEMENT DIAMETER0.3750 INCHES NOMINAL IN
OUTSIDE DIAMETER7.2400 INCHES NOMINAL IN
MATERIALSTEEL COMP 5140 ROLLER
BORE DIAMETER5.5100 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
2922394Interchangeable
interchangeable cross-reference
interchangeable
7024-2Interchangeable
interchangeable cross-reference
interchangeable
C6788-3Interchangeable
interchangeable cross-reference
interchangeable
8517ITEM48Interchangeable
interchangeable cross-reference
interchangeable
8519ITEM48Interchangeable
interchangeable cross-reference
interchangeable
A1800Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TB-550?
TB-550 is a ISOLATOR,RADIO FREQUENCY REFLECT.
What parts can replace TB-550?
There are 24 known substitutes for TB-550: 2922394, 7024-2, C6788-3 and 21 more. Substitute compatibility should be verified for your specific system.
Is TB-550 still available?
TB-550 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