Stena Europe

M & A Engineering Ltd undertake repairs to the Bow Thruster Drive Shaft Bearing Housing, on The Stena Europe.

 

The lower bearing housing bore for the Bow Thruster Drive Shaft was found to have excessive wear in it when inspected in dry dock. It was decided the best solution to the problem was to bore out the existing housing to accept a shrunken sleeve, and then bore the sleeve to the original manufactured dimensions.

 

The ships engineers also wished to check the angularity between the Drive Shaft and Bow Thruster Shaft, where the pinion gears mesh.

 

M & A utilised one of its range of heavy duty line boring bars to replicate the position of the Bow Thruster Shaft. When the vertical bar had been set in the drive shaft housing bores, a sweep reading was taken across the horizontal bar. No error was found.

 

     

 

Setting The Spigot Face Square

 

 

 

Setting The Bar Central To The Housing Bore

To allow the sleeve to be fitted, the adjacent webs also had to be machined away. This required additional bracket supports mounted in the Bow Thruster housing to locate and centralise the lower machine bearing.

 

 

Lower Bearing And Support

 

 

 

Machining The Sleeve To The Final Size

 

Note the extent of machining required to relieve the webs to allow the sleeve to be fitted.

 

 

 

Please call +44 (0)1646 698192 or email us with your requirements.