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Technical Data Sheet
PartsTable / COMPONENT / 290808R91
290808R91 ✓ 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: 1.2500 INCHES NOMINAL IN, bore_diameter: 1.7500 INCHES NOMINAL IN, special_features: AXIAL DISTANCE BETWEEN CENTER OF ROLLER CONTACT LINE & CONE STABILITY POINT ON SHAFT AXIS 0.3100 IN. IN, style_designator: NORMAL ANGLE, cone_corner_radius: 0.1406 INCHES NOMINAL 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 3110-00-100-3606, 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
290808R91
NSN: 3110-00-100-3606
FSC: 3110
CAGE: 29510 — KOMATSU AMERICAN INTL CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width1.2500 INCHES NOMINAL IN
bore_diameter1.7500 INCHES NOMINAL IN
special_featuresAXIAL DISTANCE BETWEEN CENTER OF ROLLER CONTACT LINE & CONE STABILITY POINT ON SHAFT AXIS 0.3100 IN. IN
style_designatorNORMAL ANGLE
cone_corner_radius0.1406 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-100-3606
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 290808R91 · 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: 1.2500 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BORE DIAMETER: 1.7500 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.1406 INCHES NOMINAL IN
•
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 WIDTH1.2500 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER1.7500 INCHES NOMINAL IN
CONE CORNER RADIUS0.1406 INCHES NOMINAL IN
SPECIAL FEATURESAXIAL DISTANCE BETWEEN CENTER OF ROLLER CONTACT LINE & CONE STABILITY POINT ON SHAFT AXIS 0.3100 IN. IN
STYLE DESIGNATORNORMAL ANGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
437816-5Interchangeable
interchangeable cross-reference
interchangeable
16264Interchangeable
interchangeable cross-reference
interchangeable
16264ADXInterchangeable
interchangeable cross-reference
interchangeable
763-1666-001Interchangeable
interchangeable cross-reference
interchangeable
150-570GInterchangeable
interchangeable cross-reference
interchangeable
150-588PC196Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 290808R91?
290808R91 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 290808R91?
There are 22 known substitutes for 290808R91: 437816-5, 16264, 16264ADX and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 290808R91?
290808R91 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-3606. 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