PartsTable
Technical Data Sheet
Download PDF

81757 — CONE AND ROLLERS,TAPERED ROLLER

✓ Government record, cited
Origin Storage · TAPERED BEARING
PRODUCT OVERVIEW

81757: CONE AND ROLLERS,TAPERED ROLLER.

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 U.S.

Government catalog 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 — Bearings, Antifriction, Unmounted
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
•
STYLE DESIGNATOR: NORMAL ANGLE
•
CONE CORNER RADIUS: 0.0938 INCHES NOMINAL IN
•
CONE WIDTH: 0.8540 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BORE DIAMETER: 1.8125 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
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
STYLE DESIGNATORNORMAL ANGLE
CONE CORNER RADIUS0.0938 INCHES NOMINAL IN
CONE WIDTH0.8540 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER1.8125 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 9
252957Reference document
Same NSN cross-reference
Reference document — Secondary reference
51848Reference document
Same NSN cross-reference
Reference document — Secondary reference
JD7231Reference document
Same NSN cross-reference
Reference document — Secondary reference
71470Reference document
Same NSN cross-reference
Reference document — Secondary reference
2B172Reference document
Same NSN cross-reference
Reference document — Secondary reference
46504RReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 81757?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
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 9 known substitutes for 81757: 252957, 51848, JD7231 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 81757?
81757 is cataloged in the U.S. Government catalog under NSN 3110-00-142-4358. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 81757

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.