Oil Seals - Engine Room Consumables and Spares

Oil seals are rotary shaft lip seals used to retain lubricating oil and exclude water, dirt, and contaminants in marine engines and auxiliary machinery. They are commonly installed on crankshafts, camshafts, gearboxes, pumps, stern tubes, and other rotating shafts.

ProShipWorks provides end-to-end support to source and supply Oil Seals for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.

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Product Information

Product Name Oil Seals
Product Category Engine Room Consumables and Spares
Product Reference 1374
Brands / Manufacturers Freudenberg Sealing Technologies, Trelleborg Sealing Solutions, SKF, NOK
Unit of Measure Piece

Key Features

Key Feature
1.   Elastomer sealing lip for dynamic rotary shaft sealing
2.   Prevents oil leakage and contaminant ingress
3.   Available with or without dust lips
4.   Common materials include NBR, FKM, and PTFE
5.   Manufactured in standard and custom metric or inch dimensions

Applications of Oil Seals

Application
1.  Main and auxiliary engine crankshaft and camshaft sealing
2.  Marine gearbox, reduction gear, and generator shaft sealing
3.  Pumps, compressors, hydraulic equipment, and stern tube machinery

Models & Manufacturers

Model Manufacturer
BA and BAUM rotary shaft seals Freudenberg Sealing Technologies
HMS5 and HMSA10 radial shaft seals SKF
Simmering radial shaft seal series Freudenberg Sealing Technologies
TC and SC oil seal series NOK

Technical Specifications

Model Specification Value Unit
BA and BAUM Seal type Rotary shaft lip seal, with or without dust lip —
HMS5 Typical material Nitrile rubber, depending on product designation —
HMSA10 Typical design Radial shaft seal with auxiliary dust lip —
TC and SC Typical construction Rubber-covered rotary shaft seal; exact design varies by size and suffix —
All series Dimensional identification Shaft diameter × housing bore diameter × seal width mm

Standards, Certifications & Class Approval

Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.

Applicable Standards & Certification Common dimensional and design references include ISO 6194 for rotary shaft lip-type seals and DIN 3760 for radial shaft seals. Material compatibility, temperature, pressure, and speed ratings must be confirmed from the manufacturer's data sheet.
Class Approval Individual oil seals generally do not have universal type approval from DNV, ABS, Lloyd's Register, BV, or ClassNK. Class acceptance may depend on the machinery manufacturer, approved design, material documentation, and application requirements.

Installation, Maintenance & Safety Information

Installation Notes Verify shaft diameter, housing bore, width, rotation direction, lip material, and fluid compatibility before installation. Clean the shaft and housing, inspect for grooves or burrs, lubricate the sealing lip, and use a suitable press tool to install the seal squarely without damaging the lip.
Maintenance Tips Inspect routinely for oil leakage, overheating, abnormal wear, shaft scoring, and contamination. Replace seals when leakage or lip damage is found, and inspect the shaft surface and housing fit before installing a replacement.
Safety Notes Follow the engine or equipment maker's isolation and lockout procedures before replacement. Allow hot machinery and oil to cool, control spills, use suitable personal protective equipment, and never exceed the seal manufacturer's pressure, temperature, speed, or chemical compatibility limits.

Request a Quote for Oil Seals

Contact ProShipWorks for marine or industrial product sourcing, quotations and delivery.

  • Vessel name and IMO number
  • ETA / vessel schedule
  • Berth or vessel location
  • Required quantity
  • Preferred delivery window
  • Shipping agent contact details

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