"> Thordon Bearings Thordon TG100 800mm
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Thordon Bearings

Thordon TG100 800mm

The Thordon TG100 is a stern tube bearing designed for an 800 mm shaft, featuring a polymer‑composite lining that provides low friction and corrosion resistance in marine propulsion systems. The supplied category identifies it as Stern Tube Bearing, and 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. Within the supplied list, neighbouring variants are distinguished by their model designations and naming, while the source does not state further model-specific hardware differences. No additional performance, approval or construction detail is inferred from the model code beyond the information supplied in the source record. For exact ratings, dimensions, settings, capacities, materials and variant-specific limits, refer to the manufacturer documentation for the exact figure.

Components & Design

Component data being added…

Technical Data

shaft diameter mm 800
bearing material polymer composite

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Common failures & inspection points

Bearing wear or loss of bearing material increases shaft movement and is noticed as vibration, noise or abnormal clearance during inspection
Poor lubrication or restricted water flow on water-lubricated designs causes heating, scoring or accelerated wear
Misalignment or shaft deflection creates uneven loading and produces localized wear, elevated temperature or vibration
Abrasive contamination or debris damages the bearing surface and causes scoring or rapid clearance growth
Corrosion, delamination or material damage causes visible deterioration and may lead to unstable shaft support

Service & Maintenance

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.

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Replacement Parts

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.
Equipment Model #73437 · ✓ still in production