Stern Tube Bearing · Shaft Line Equipment
The Thordon TG100 150 mm is a polymer‑composite stern tube bearing designed for 150 mm shaft diameters, offering low friction and corrosion resistance in marine propulsion systems. As a Stern Tube Bearing, it is normally installed in the stern tube or propulsion shaft line where it supports the rotating propeller shaft and maintains shaft alignment. In that role, its primary purpose is to carry radial shaft load while permitting low-friction rotation under the lubrication arrangement used by the vessel. Water-lubricated composite or rubber bearings and oil-lubricated metallic bearings differ in material and lubrication, but all require correct alignment, surface condition and running clearance. For exact ratings, dimensions, settings, capacities, materials and variant-specific limits, refer to the manufacturer documentation for the exact figure.
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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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