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Technical Data Sheet
PartsTable / COMPONENT / 25577
25577 ✓ 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

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: ALUMINUM, special_features: 1" HIGH X 1.38" WIDE. MADE OF ALUUMINUM AND ADHERED TO SURFACE WITH 3M HI-PERFORMANCE ADHESIVE BACKING.

LABEL, 50-HZ., attachment_method: ADHESIVE, end_item_identification: F-22 RAPTOR, part_name_assigned_by_controlling_agency: LABEL. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-3539, 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
25577
NSN: 3110-00-100-3539
FSC: 3110
CAGE: 47353 — PORTEC INC PIONEER DIV (USA)
SPECIFICATIONS
materialALUMINUM
special_features1" HIGH X 1.38" WIDE. MADE OF ALUUMINUM AND ADHERED TO SURFACE WITH 3M HI-PERFORMANCE ADHESIVE BACKING. LABEL, 50-HZ.
attachment_methodADHESIVE
end_item_identificationF-22 RAPTOR
part_name_assigned_by_controlling_agencyLABEL
NSN3110-00-100-3539
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 25577 · 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 WIDTH: 1.0000 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.1406 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: NORMAL ANGLE
•
BORE DIAMETER: 1.6880 INCHES NOMINAL IN
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)
SPECIAL FEATURESAXIAL DISTANCE BETWEEN CENTER OF ROLLER CONTACT LINE & CONE STABILITY POINT ON SHAFT AXIS 0.2500 IN. IN
CONE WIDTH1.0000 INCHES NOMINAL IN
CONE CORNER RADIUS0.1406 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
BORE DIAMETER1.6880 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
25577Interchangeable
interchangeable cross-reference
interchangeable
350-218Interchangeable
interchangeable cross-reference
interchangeable
1887Interchangeable
interchangeable cross-reference
interchangeable
Z771Interchangeable
interchangeable cross-reference
interchangeable
1687PInterchangeable
interchangeable cross-reference
interchangeable
52979Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 25577?
25577 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 25577?
There are 16 known substitutes for 25577: 25577, 350-218, 1887 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 25577?
25577 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-3539. 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