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The cooling system in the Steam Turbine Generator (STG # 1.0) is adjusted to the cleanliness conditions of seawater, using Traveling Drum Screen (TDS) as a filter. In January 2019, Traveling Drum Screen (TDS) suffered bearing and fuse bolt damage until STG # 1.0 was stopped with a potential loss of 28.59 billion rupiahs. The position of the TDS bearing below the surface of the sea makes monitoring difficult. To overcome the problems in TDS bearings, an innovation was made in the form of redesign &amp; upgrading bearing materials. The replacement of TDS bearing material from Pertinax to Pokhout Wood (Lignum vitae) is very appropriate because the material is capable of self-lubrication in seawater and has more strength. In addition to upgrading the material, a redesign of the bearing is also carried out, which is adding a grease groove so that the optimal lubrication process and use finite analysis software to find out safety factors design. By using simulation software, the results show the bearing design with Pokhout material has a safety factor of 1.28 and Pertinax has a safety factor of 0.85. This shows that the re-design and upgrade of materials that have been carried out can increase the safety factor bearing and can reduce the possibility of failure of the bearing.

Re-design and Upgrade Bearing Materials Traveling Drum Screen in Muara Karang Combined Cycle Power Plant Block 1