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Technical Data Sheet
PartsTable / COMPONENT / 44963
44963 ✓ Verified by PartsTable
Lindy · 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 Lindy tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, recess_angle: 90.0 DEGREES NOMINAL, recess_diameter: 0.228 INCHES MINIMUM AND 0.232 INCHES MAXIMUM IN, outside_diameter: 0.344 INCHES NOMINAL IN, style_designator: RECESSED, surface_treatment: CHROMATE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0355, 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
44963
NSN: 3110-00-100-0355
FSC: 3110
CAGE: 28631 — HIGHWAY EQUIPMENT COMPANY INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
recess_angle90.0 DEGREES NOMINAL
recess_diameter0.228 INCHES MINIMUM AND 0.232 INCHES MAXIMUM IN
outside_diameter0.344 INCHES NOMINAL IN
style_designatorRECESSED
surface_treatmentCHROMATE OVERALL
material_thickness0.071 INCHES NOMINAL IN
material_document_and_classificationQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyNOZZLE,FIRE HOSE
surface_treatment_document_and_classificationMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN3110-00-100-0355
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 44963 · Lindy ⚠ 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
•
OUTSIDE DIAMETER: 2.7500 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0469 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
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)
OUTSIDE DIAMETER2.7500 INCHES NOMINAL IN
OVERALL WIDTH0.7500 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0469 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
753053-1Interchangeable
interchangeable cross-reference
interchangeable
3001-4Interchangeable
interchangeable cross-reference
interchangeable
3001-14-89Interchangeable
interchangeable cross-reference
interchangeable
61-181Interchangeable
interchangeable cross-reference
interchangeable
3R8129Interchangeable
interchangeable cross-reference
interchangeable
4K1077Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 44963?
44963 is a CUP,TAPERED ROLLER BEARING manufactured by Lindy.
What parts can replace 44963?
There are 30 known substitutes for 44963: 753053-1, 3001-4, 3001-14-89 and 27 more. Substitute compatibility should be verified for your specific system.
Is 44963 still available?
44963 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