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Technical Data Sheet
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59429R — Technical Data Sheet

✓ 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

The CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, overall_width: 1.0625 INCHES NOMINAL IN, outside_diameter: 4.2900 INCHES NOMINAL IN, special_features: SNAP RING AND GROOVE ON OD, style_designator: NORMAL ANGLE, backface_corner_radius: 0.1250 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3110-00-190-9334, 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
59429R
NSN: 3110-00-190-9334
FSC: 3110
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width1.0625 INCHES NOMINAL IN
outside_diameter4.2900 INCHES NOMINAL IN
special_featuresSNAP RING AND GROOVE ON OD
style_designatorNORMAL ANGLE
backface_corner_radius0.1250 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-190-9334
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 59429R · 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
•
BACKFACE CORNER RADIUS: 0.1250 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
STYLE DESIGNATOR: NORMAL ANGLE
•
MATERIAL: STEEL OVERALL
•
OUTSIDE DIAMETER: 4.2900 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
BACKFACE CORNER RADIUS0.1250 INCHES NOMINAL IN
OVERALL WIDTH1.0625 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
STYLE DESIGNATORNORMAL ANGLE
MATERIALSTEEL OVERALL
OUTSIDE DIAMETER4.2900 INCHES NOMINAL IN
SPECIAL FEATURESSNAP RING AND GROOVE ON OD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
MIL-L-23886InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
38182InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
XM-36465-96-0510-O-LInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
59429RBInterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 59429R?
59429R is a CUP,TAPERED ROLLER BEARING.
What parts can replace 59429R?
There are 4 known substitutes for 59429R: MIL-L-23886, 38182, XM-36465-96-0510-O-L and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 59429R?
59429R is cataloged in the Federal Logistics Information System under NSN 3110-00-190-9334. 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: September 2026