Stern Tube Bearing · Shaft Line Equipment
The Johnson Cutless 350mm stern tube bearing from Duramax Marine provides an oil‑free, low‑maintenance support for a 350 mm shaft, featuring a nitrile rubber bearing element and a compact 1050 mm length.
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What our service work and the manufacturer documentation say about keeping this model running.
Inspect bearing condition, lubrication or flushing arrangement, shaft surface, alignment indicators and any accessible wear measurements. Trend stern-tube or bearing temperature and vibration where instrumentation is fitted. Investigate asymmetric wear because it can indicate shaft-line alignment problems rather than simple bearing age. Refer to the manufacturer and class documentation for the exact figure for clearance, wear and replacement limits.
Carry manufacturer-approved bearing segments or a replacement bearing where vessel criticality justifies it, together with seals, approved lubricants or flushing-system service parts appropriate to the installation.
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