DIABOLO BEARING 8037632T03 PAF8-04040001

Function and technical context

The PAF8-04040001 diabolo bearing is a critical component of the marine transmission system that supports and guides the rotation axes in outboard motors and tenders. This bearing works under highly demanding conditions, subjected to continuous radial and axial loads that guarantee precise alignment of the transmission shaft. Its degradation or direct failure causes excessive clearance, abnormal engine vibration and progressive loss of propulsion power, compromising the operation and safety of the vessel.

When to replace this part?

Symptoms of bearing wear include noticeable vibration at low engine speeds, intermittent clunking from the engine, and loss of efficiency during acceleration. It is recommended to inspect this component during each seasonal inspection and replace it preventively if any abnormal movement or play is detected in the drive shaft. Changing the bearing preventively is more economical than repairing secondary damage to the crankshaft or gearbox, thus avoiding unforeseen stops in navigation.

Equivalent manufacturer part numbers