If it is a split Babbitt, you will have a gasket between the two halves that allow for tightening due to wear. The procedure pretty much leaves it size to size. After you cut the grooves and put it together, it is recommended to grease or oil it up and run it with a small electric motor and belt to wear it in for 24 - 48 hours, which allows you to check for excess heat, and general operating soundness.

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