"> Micromatic (Italy) MM Stern Tube Bearing
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Micromatic (Italy)

MM Stern Tube Bearing

The Micromatic MM Stern Tube Bearing is a marine thrust bearing assembly that supports the propeller shaft within the stern tube, available in white‑metal (oil‑lubricated) or polymer (water‑lubricated) versions for sizes MM‑100 to MM‑800.

Micromatic (Italy) MM Stern Tube Bearing
Shaft diameter 100-800 mm
Capacity
Oil lubricated / Water lubricated
Medium

Components & Design

Component data being added…

Technical Data

type Stern Tube Bearing (White Metal / Polymer)
variant count approx 4
period start year 1985
drive type Passive
construction White metal or polymer in bronze housing

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Common failures & inspection points

●White metal wiping from misalignment
●Polymer wear from debris ingestion (water-lubricated)
●Housing fit loosening from vibration

Service & Maintenance

Per bearing type. Oil-lubricated: oil analysis quarterly. Water-lubricated: clearance check at drydock.

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Replacement Parts

Micromatic (Genova, Italy). Lead time: 4-6 weeks.
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Equipment Model #37806 · ✓ still in production