Oil Rings - Engine Room Consumables and Spares
Oil rings, also called oil-control or scraper rings, are piston rings used in marine diesel engines to regulate lubricating oil on the cylinder liner. They scrape excess oil from the liner surface and return it through piston drainage passages to reduce oil consumption and prevent combustion-chamber fouling.
ProShipWorks provides end-to-end support to source and supply Oil Rings for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.
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Product Information
| Product Name | Oil Rings |
|---|---|
| Product Category | Engine Room Consumables and Spares |
| Product Reference | 1375 |
| Brands / Manufacturers | MAN Energy Solutions, WinGD, Wärtsilä, Caterpillar, MAHLE, NPR |
| Unit of Measure | Piece |
Key Features
| Key Feature |
|---|
| 1. Controls lubricating-oil film thickness on piston and liner surfaces |
| 2. Scrapes excess oil toward piston drain holes |
| 3. Manufactured from alloy cast iron or steel |
| 4. May include chromium, molybdenum, or other wear-resistant coatings |
| 5. Supplied to engine maker dimensions and ring-groove specifications |
Applications of Oil Rings
| Application |
|---|
| 1. Main propulsion diesel engines |
| 2. Marine auxiliary and generator engines |
| 3. Medium-speed and high-speed diesel engines |
Models & Manufacturers
| Model | Manufacturer |
|---|---|
| Marine piston oil-control ring for MAN B&W engines | MAN Energy Solutions |
| Marine piston oil-control ring for Wärtsilä engines | Wärtsilä |
| Marine piston oil-control ring for WinGD engines | WinGD |
| Marine piston oil-control ring for Caterpillar engines | Caterpillar |
| Marine piston oil-control ring | MAHLE |
Technical Specifications
| Model | Specification | Value | Unit |
|---|---|---|---|
| Marine piston oil-control ring | Ring type | Oil-control or scraper ring | — |
| Marine piston oil-control ring | Base material | Alloy cast iron or steel | — |
| Marine piston oil-control ring | Coating | Application-dependent chromium, molybdenum, or coated surface | — |
| Marine piston oil-control ring | Dimensions | Engine and piston-groove specific | — |
| Marine piston oil-control ring | Identification | OEM part number, cylinder diameter, ring width, and radial thickness | — |
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 | Piston rings are commonly specified and tested according to the applicable ISO 6621 series requirements, together with the marine engine manufacturer's drawings and material specifications. Exact compliance depends on the engine and supplier. |
|---|---|
| Class Approval | Individual oil rings are normally supplied as engine-maker or approved replacement components rather than separately class-approved items. Acceptance may be subject to DNV, ABS, Lloyd's Register, Bureau Veritas, or ClassNK requirements for the complete engine and its critical spare parts. |
Installation, Maintenance & Safety Information
| Installation Notes | Confirm engine model, OEM part number, cylinder diameter, ring width, ring orientation, and coating before installation. Clean the piston grooves and drainage passages, check ring end gap in the liner, and install without twisting or damaging the ring. |
|---|---|
| Maintenance Tips | Inspect oil consumption, liner condition, piston-groove wear, ring end gap, and ring sticking during overhaul. Replace rings as a complete cylinder set when required by the engine maker, and store them dry in original packaging. |
| Safety Notes | Use the engine manufacturer's overhaul procedure and approved ring-expander tools. Wear eye and hand protection, avoid forcing or overstretching rings, isolate and cool the engine before work, and prevent dirt from entering the crankcase or cylinder. |
Request a Quote for Oil Rings
Contact ProShipWorks for marine or industrial product sourcing, quotations and delivery.
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- ETA / vessel schedule
- Berth or vessel location
- Required quantity
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- Shipping agent contact details
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