PartsTable
Technical Data Sheet
PartsTable / MRO / 55038-3
55038-3 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: PLASTIC CASE, body_style: MULTIPOLE-MULTIPLE ACTUATOR TYPE, body_width: 2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM IN, cone_width: 1.1875 INCHES NOMINAL IN, body_length: 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN, boss_height: 0.130 INCHES MINIMUM AND 0.150 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 3110-00-277-0105, 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
MRO→ MRO_GENERAL→ 55038-3
NSN: 3110-00-277-0105
FSC: 3110
CAGE: 95019 — DANA CORP SPICER TRANSMISSION DIV (USA)
SPECIFICATIONS
materialPLASTIC CASE
body_styleMULTIPOLE-MULTIPLE ACTUATOR TYPE
body_width2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM IN
cone_width1.1875 INCHES NOMINAL IN
body_length2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN
boss_height0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
reset_methodMANUAL
storage_typeGENERAL PURPOSE WAREHOUSE
bore_diameter2.2500 INCHES NOMINAL IN
pole_quantity3
fragility_factorMODERATELY RUGGED
special_featuresAXIAL DISTANCE BETWEEN CENTER OF ROLLER CONTACT LINE AND CONE STABILITY POINT ON SHAFT AXIS 0.2600 IN. IN
NSN3110-00-277-0105
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 55038-3 · 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
•
CONE CORNER RADIUS: 0.1400 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
CONE WIDTH: 1.1875 INCHES NOMINAL IN
•
BORE DIAMETER: 2.2500 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: NORMAL ANGLE
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
CONE CORNER RADIUS0.1400 INCHES NOMINAL IN
SPECIAL FEATURESAXIAL DISTANCE BETWEEN CENTER OF ROLLER CONTACT LINE AND CONE STABILITY POINT ON SHAFT AXIS 0.2600 IN. IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
CONE WIDTH1.1875 INCHES NOMINAL IN
BORE DIAMETER2.2500 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
39580Interchangeable
interchangeable cross-reference
interchangeable
35920Interchangeable
1TB ix2 Cold Swap
interchangeable
BRTAM2Interchangeable
interchangeable cross-reference
interchangeable
B4524-7414-2Interchangeable
interchangeable cross-reference
interchangeable
55038-3Interchangeable
interchangeable cross-reference
interchangeable
72-287-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55038-3?
55038-3 is a CONE AND ROLLERS,TAPERED ROLLER. It is classified as a MRO (MRO_GENERAL).
What parts can replace 55038-3?
There are 11 known substitutes for 55038-3: 39580, 35920, BRTAM2 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 55038-3?
55038-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-277-0105. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026