be_ixf;ym_202009 d_22; ct_50

Aft stern tube bearing rebabbitting & machining

Stern tube bearing remetalling

During a special dry-docking, the owners of the Charles Eddie, a 305,178 DWT crude oil tanker, found white metal material squeezed from the aft stern tube bearing. Recognizing the severity of the issue and the requirement for a highly specialized repair, the customer contacted Goltens to provide alignment checks and rebabbitting of the 790mm diameter x 1,710mm stern tube.

Goltens, a pioneer in the field developing proprietary centrifugal casting machinery to meet the highest tolerances and quickly repair and recondition bearings , responded immediately to address the vessel’s pressing schedule.

  • Centrifugal casting of stern tube bearing

PROJECT FACTS

M/V Charles Eddie
Tonnage: 305,178 DWT
Main Engine: MAN B&W 7S80MC
Output: Mcr: 25,485KW
Bearing Diameter: Ø790.00mm
Bearing Length: 1,710.00mm

WORK SCOPE

  • Performed laser alignment check of the shaft line onboard the vessel
  • Incoming inspection of AFT stern tube bearing in the workshop
  • Removal of white metal from bearing shell
  • Rebabbitting the AFT stern tube bearing
  • Finish machining white metal bearing surface to final diameter according to specification at workshop
  • Measuring the final size and complete inspection by UT and dye checking at workshop (witnessed by LR Class surveyor and ship owner)
  • Laser alignment check of stern tube bearing when reinstalled onboard the vessel

RESULTS

Goltens workshop completed the rebabbitting service within 5 days including coordinating with shipyard and Class society in order to meet the vessel’s urgent schedule.

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