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Technical Data Sheet
PartsTable / COMPONENT / 1637N2
1637N2 ✓ 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: 1.8750 INCHES NOMINAL IN, bore_diameter: 6.8750 INCHES NOMINAL IN, style_designator: NORMAL ANGLE, cone_corner_radius: 0.1410 INCHES NOMINAL IN, standard_tolerance_designation: AFBMA CLASS 2. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-3080, 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
1637N2
NSN: 3110-00-227-3080
FSC: 3110
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width1.8750 INCHES NOMINAL IN
bore_diameter6.8750 INCHES NOMINAL IN
style_designatorNORMAL ANGLE
cone_corner_radius0.1410 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-227-3080
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1637N2 · 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
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BORE DIAMETER: 6.8750 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.1410 INCHES NOMINAL IN
•
CONE WIDTH: 1.8750 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)
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER6.8750 INCHES NOMINAL IN
CONE CORNER RADIUS0.1410 INCHES NOMINAL IN
CONE WIDTH1.8750 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
1098Interchangeable
interchangeable cross-reference
interchangeable
1945HX1Interchangeable
interchangeable cross-reference
interchangeable
109B1-4Interchangeable
interchangeable cross-reference
interchangeable
A908196Interchangeable
interchangeable cross-reference
interchangeable
110D1160Interchangeable
interchangeable cross-reference
interchangeable
110-0915Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1637N2?
1637N2 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 1637N2?
There are 23 known substitutes for 1637N2: 1098, 1945HX1, 109B1-4 and 20 more. Substitute compatibility should be verified for your specific system.
Is 1637N2 still available?
1637N2 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