Our company is currently maintaning and operating this 60 year old mini 1.80 MW hydroelectric power plant. For the past few years, it has underwent changes and improvements. However, we haven't rectified this problem of frequent bearing replacement. Realignment has been done which costs $10,000. Lubrication systems are being modified to fight off contamination on the lube oil (Regal 68) . However, I have come to consider a change of Babbitt grade from a ASTM B23 Grade 2 Babbitt to a ASTM B23 Grade Babbitt would suffice. I have checked and compared the mechanical properties for both. If I were to consider Grade 3, it has 5% lesser tin, 5% more antimony and 6% copper. Any similar instances from this post? Would appreciate any useful comments. Thanks.
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