NS (Free Bare Shaft)
Seepex NS (Free Bare Shaft) — Marine flexible drive coupling, all drive types mountable.
Components & Design
Component data being added…
Technical Data
🤖 Ask about this model
One free question — answered like a marine engineer. No account needed.
Common failures & inspection points
Visual inspection for cracks, blisters, discoloration, hardness change; replacement cycle every 8,000-15,000 operating hours due to saltwater corrosion and emulsification stress
Surface finish measurements, coating integrity visual check; rotor replacement when chrome deterioration exceeds 0.003-0.005 inches runout tolerance
Pressure-side and suction-side leakage testing; bearing runout and alignment verification (max 0.003-0.005 inches); replacement interval 12,000-18,000 hours
Initial inspection after 700-1,000 operating hours; subsequent checks at maximum 1,500-hour intervals; record wear patterns and debris types from each cycle
Verify 316L/316LTi stainless steel material selection; inspect bearing coatings and lube compatibility with seawater; assess anodic protection effectiveness for long-term storage
Type-general inspection and maintenance points for this equipment category — not model-specific.
Suppliers & Spare Parts
Direct links to manufacturer, datasheet, spare-parts portal and dealers — request access below.
📄 Request sourcing links & documentsCases, daily reports, timesheets and AI troubleshooting in the OceanSphere Marine app — free for 14 days.
Start free trial →Find manufacturers, repair shops and spare-part dealers in the Maritime Network — our global company directory.
Maritime Network →