Propulsion Gearbox / Reduction Gear · Propulsion Gearbox
The Reintjes WGF 3000 kW 5:1 is an offset marine propulsion gearbox delivering up to 3 MW at a 5:1 reduction, designed for compact installation and integrated oil‑lubrication.
Every value below comes from the manufacturer datasheet or class-society record on file for this model.
| Oil sample analysis | typically every 500 hours or every 6 months, whichever comes first |
|---|---|
| Full oil change | typically every 4,000-6,000 hours or per oil analysis result - confirm against Reintjes's own schedule |
| Alignment check | typically annually or after any drivetrain disturbance |
| Filter element change | typically every 500-1,000 hours or on differential pressure indication |
| Major bearing/gear inspection | typically every 12,000-20,000 hours or aligned with the class survey interval |
| Gear backlash | flag for inspection once measured backlash exceeds the maker's as-new value by roughly 50-100% - confirm against Reintjes's own tolerance table |
|---|---|
| Bearing axial play | typically flagged once play exceeds as-new clearance by a few tenths of a millimetre - confirm against maker limits for this gearbox size |
| Oil water content | flag for action above roughly 0.1-0.2% water content by volume, trended against baseline |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Class surveys of propulsion gearboxes typically check oil analysis trend records and alignment records after any disturbance, and confirm no unauthorized modification to the reduction ratio or clutch system. Gearboxes integrated with a CSM main engine may be surveyed on the same continuous-survey cycle.
Estimated lifetime: Marine reduction gearboxes of this power/ratio class are typically designed for the vessel's operating life, often cited in the region of 20-30+ years, with periodic bearing and seal renewal rather than a fixed running-hour replacement figure.
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