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Technical Data Sheet
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81757 — Technical Data Sheet

✓ Verified by PartsTable
Origin Storage · 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

This OM4 Duplex Multimode fibre optic cable is ideal for connecting 40GBase-SR4 and 100GBase-SR10, SFP+ and QSFP+ transceivers for 40 and 100 gigabit network connections. This cable provides backward compatibility with existing 50/125 equipment and the performance headroom required to support LED and VCSEL laser light sources, and 40 or 100 gigabit Ethernet applications in a data centre or wiring closet. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-142-4358, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
81757
NSN: 3110-00-142-4358
FSC: 3110
CAGE: 13125 — CLEVELAND TRENCHER CO INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width0.8540 INCHES NOMINAL IN
bore_diameter1.8125 INCHES NOMINAL IN
style_designatorNORMAL ANGLE
cone_corner_radius0.0938 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-142-4358
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 81757 · Origin Storage ⚠ 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 CORNER RADIUS: 0.0938 INCHES NOMINAL IN
•
BORE DIAMETER: 1.8125 INCHES NOMINAL IN
•
CONE WIDTH: 0.8540 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
•
MATERIAL: STEEL OVERALL
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
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 CORNER RADIUS0.0938 INCHES NOMINAL IN
BORE DIAMETER1.8125 INCHES NOMINAL IN
CONE WIDTH0.8540 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
MATERIALSTEEL OVERALL
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 39
G64S100P1Y3Interchangeable
interchangeable cross-reference
interchangeable
2394350G1Interchangeable
interchangeable cross-reference
interchangeable
611240Interchangeable
interchangeable cross-reference
interchangeable
13301Interchangeable
interchangeable cross-reference
interchangeable
126TN9Interchangeable
interchangeable cross-reference
interchangeable
122359-6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81757?
81757 is a CONE AND ROLLERS,TAPERED ROLLER manufactured by Origin Storage.
What parts can replace 81757?
There are 39 known substitutes for 81757: G64S100P1Y3, 2394350G1, 611240 and 36 more. Substitute compatibility should be verified for your specific system.
Is 81757 still available?
81757 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: September 2026