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Technical Data Sheet
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SD-61657 ✓ 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: STEEL OVERALL, cone_width: 1.4375 INCHES NOMINAL IN, bore_diameter: 2.0000 INCHES NOMINAL IN, style_designator: NORMAL ANGLE, cone_corner_radius: 0.0312 INCHES NOMINAL IN, standard_tolerance_designation: AFBMA CLASS 2. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-6668, 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
SD-61657
NSN: 3110-00-100-6668
FSC: 3110
CAGE: 63800 — WARNER AND SWASEY CO TURNING DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width1.4375 INCHES NOMINAL IN
bore_diameter2.0000 INCHES NOMINAL IN
style_designatorNORMAL ANGLE
cone_corner_radius0.0312 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-100-6668
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: SD-61657 · 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
•
MATERIAL: STEEL OVERALL
•
CONE CORNER RADIUS: 0.0312 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
•
BORE DIAMETER: 2.0000 INCHES NOMINAL IN
•
CONE WIDTH: 1.4375 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
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)
MATERIALSTEEL OVERALL
CONE CORNER RADIUS0.0312 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
BORE DIAMETER2.0000 INCHES NOMINAL IN
CONE WIDTH1.4375 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
FF-B-187/01-364Interchangeable
interchangeable cross-reference
interchangeable
59201TInterchangeable
interchangeable cross-reference
interchangeable
9-274-100286Interchangeable
interchangeable cross-reference
interchangeable
E986EInterchangeable
interchangeable cross-reference
interchangeable
59201Interchangeable
interchangeable cross-reference
interchangeable
5133664Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SD-61657?
SD-61657 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace SD-61657?
There are 10 known substitutes for SD-61657: FF-B-187/01-364, 59201T, 9-274-100286 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SD-61657?
SD-61657 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-6668. 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