Crane Pedestal Seating Face Grinding

The flatness of the seating face that carries a ship crane's slewing bearing is restored on board with a portable grinding rig.

A seating face that has lost its flatness does not carry the slewing bearing evenly; the crane runs roughly and the mounting bolts are overloaded.

Photos from the Job

When the flatness of the face exceeds the slewing bearing maker's limit before a bearing change
When the crane shudders, makes noise or moves unevenly while slewing
When mounting bolts break or keep working loose
When the face shows corrosion or impact damage

We do not supply slewing bearings or bolts.
Weld repair is not part of this job; grinding achieves flatness by removing material and cannot build up missing material.

The figure given by the slewing bearing maker. Measurements are reported against it.

Yes. Once the crane and the slewing bearing have been lifted off, the grinding rig is fixed to the seating face and the work is done on board.

Tell us the engine make and model, the damage and where the vessel is; we will review it and get back to you.

10 services

Other reconditioning work we do on board and in the workshop.