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PartsTable / COMPONENT / 1228T644
1228T644 ✓ 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 length: 0.240 INCHES NOMINAL IN, material: RUBBER SYNTHETIC, duty_type: CONTINUOUS, mesh_size: 80.0, thread_class: 2A SINGLE MOUNTING FACILITY A, hole_diameter: 0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-606-9574, 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
1228T644
NSN: 3110-00-606-9574
FSC: 3110
CAGE: 78500 — MERITOR HEAVY VEHICLE SYSTEMS, LLC (USA)
SPECIFICATIONS
length0.240 INCHES NOMINAL IN
materialRUBBER SYNTHETIC
duty_typeCONTINUOUS
mesh_size80.0
thread_class2A SINGLE MOUNTING FACILITY A
coil_quantity1
hole_diameter0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width1.650 INCHES NOMINAL IN
wire_diameter0.00550 INCHES NOMINAL IN
overall_height1.430 INCHES NOMINAL IN
overall_length2.060 INCHES NOMINAL IN
special_featuresSECOND END STYLE OVER-LAPS,SILVER BRAZE AMS 2665
NSN3110-00-606-9574
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1228T644 · 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
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
457258Interchangeable
interchangeable cross-reference
interchangeable
458027Interchangeable
interchangeable cross-reference
interchangeable
61891Interchangeable
interchangeable cross-reference
interchangeable
4502AInterchangeable
interchangeable cross-reference
interchangeable
22666Interchangeable
interchangeable cross-reference
interchangeable
124915Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1228T644?
1228T644 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 1228T644?
There are 24 known substitutes for 1228T644: 457258, 458027, 61891 and 21 more. Substitute compatibility should be verified for your specific system.
Is 1228T644 still available?
1228T644 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