Prop Shaft Alignment

The alignment of engines and propeller shafts is critical in shipbuilding and marine maintenance, where the stresses and vibrations created by rotating misaligned shafts will not only lead to breakdowns in the engines shaft assembly itself, but can also result in damage to struts and hulls, leading to leaking and possible sinking.

Unlike land-based driven shaft applications, boats and marine craft are not rigid structures, and are subject to twisting forces as a result of environment and load, all of which will affect the mounting of engine and propeller shaft. Boat engine drive systems do not indefinitely remain in alignment and need to be periodically checked and realigned to reduce wear to drive train units, components, and the craft itself.

Prop Shaft Alignment

Monition distributes a range of Prop Shaft Alignment Systems which have been specifically developed for measuring and correcting the alignment of driven shafts in marine applications.

Prop Shaft Alignment - Consequences of Propeller Shaft Misalignment

Common problems associated with propeller shaft misalignment include:

  • Escalated bearing wear
  • Bent or broken shafts
  • Drive system vibration leading to transmission damage & failure, engine mounts and the boat hull itself
  • Structural resonance as a result of shaft vibration leading to loosening of struts
  • Worn engine mounts
  • Rapid wear on universal joints and couplings

Prop Shaft Alignment Systems

Monition Prop Shaft Alignment System

Monitions systems are powerful, easy to use laser guided Prop Shaft Alignment Systems for checking and correcting alignment in propeller or any driven rotating shaft.

System features:

  • Icon-driven large LCD colour touch screen interface
  • 3D colour animations to guide users through the alignment process
  • Line-laser technology and large detector areas for easy set-up and measurement
  • Blue-tooth wireless connectivity between laser heads and display unit eliminate the need for cables to transfer data
  • Precision Alignment measurements to within small fractions of a millimetre
  • Live onscreen measurements instantly inform users of effects of shimming and corrections to engine or shaft position
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Centring Systems - measurement of inside diameters

Our cCentering system is a Flexible Geometry Measurement system for measurements on inside diameters. It is a powerful tool for checking bearings journals as well as positioning of support bearings in applications such as propeller shafts. The centering measures the rotational centre position, in two axes, in relation to user defined reference points for Prop Shaft Alignment.

The system provides full functionality for measurement, alignment, and documentation. The rigid fixtures together with easy operated components fulfil the requirements on a quick, easy, and precise alignment system. Alignment of bearing journals in diesel engines within shipbuilding and power generation with centering has proved to be most useful.

Technical specification of centring systems:

  • Displayed measurement result resolution: 0,001 mm
  • Operating temperature range: 0 - 40°C
  • Power supply: Batteries
  • Operating time: Depending on operation cycle < 20 hrs
  • Measurement diameters: 80 - 350 mmt

Prop Shaft Alignment Services

Monition is a specialist independent Prop Shaft Alignment Service company with over 20 years experience providing condition-based maintenance support to industry.

We specialise in all forms of rotating machinery monitoring and correction, where vibration levels resulting from shaft misalignment, imbalance, bent shafts, bearing problems, gearbox / transfer box problems and lubrication problems, result in mechanical inefficiency and breakdowns.

Monition provides ISO-Certified onsite prop shaft alignment services, vibration monitoring and specialist mechanical troubleshoot services.

Further Information

For further information, please email or call 01909 722 000. Why not send a link to a colleague or bookmark this page using the links below.

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Institute of Asset Managment Membership
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ISO 9001 Registered

Bondhay Complex, Whitwell Common, Worksop, Nottinghamshire, S80 3EH, United Kingdom
Tel: 01909 722000 | | Company Number: 02218477