Fast rebabbitting response keeps drydocking on schedule
Forward and aft stern tube bearing rebabbitting & machining
During a drydocking period for a Crude Oil Tanker, babbitt material was found when the tail shaft was removed for inspections. Further investigation revealed that forward and aft stern tube bearings were damaged . The ship was under a tight schedule and the unanticipated work presented a serious challenge to keeping the vessel’s drydocking schedule.
The vessel’s chief superintendent recognized the seriousness of the damage and immediately approached Goltens knowing that Goltens had the workshop capabilities and specialized experience to solve the problem for the large diameter stern tubes.
Goltens responded immediately and dispatched an experienced supervisor to check the forward and aft stern tube bearings and tail shaft condition. After review, Goltens provided a proposal that was accepted by the owner and class representative from De Norske Veritas and Goltens began the repair.
AFT stern tube bearing being lowered into the tinning tank
FWD stern tube bearing immersed in the tinning tank
AFT stern tube bearing setting on the centrifugal machine
AFT stern tube bearing on the centrifugal machine being cooled by water after remetalling the bearing
AFT stern tube bearing after re-babbitting (pre-machining)
AFT stern tube bearing being machined after rebabbitting
FWD stern tube bearing being machined after rebabbitting
AFT stern tube bearing after machining
UT testing for FWD stern tube bearing after machining
|STERN TUBE BEARINGS
|OD: 741.00mm × L: 1630.00mm
BEARING REMETALLING AND MACHINING REPAIRS
- Inspection of aft and forward stern tube bearings after removal old damaged white metal bearing material
STERN TUBE REPAIR RESULTS
Goltens coordinated closely with the shipyard and vessel’s class society and completed this rebabbitting project within 5 days in order to keep the vessel’s schedule on track.
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