You can easily write your own calculator using Excel. You will need to know the internal geometry of the bearing, which can be obtained from the manufacturer. I can send you the spreadsheet we use for doing these calculations. If you have SKF bearings, they have a frequency calculator in...
It is interesting to read this long list of posts and realize that most of the responders don't understand how isolators work. Some have hinted about the effects, but nobody really answered the initial question.
First, an isolator works by shifting the natural frequency of the supported mass...
Greg:
Without going into a lot of detail, a reciprocating engine can produce both integer and half-integer frequency components of running speed. The exact orders and strength of the components depends on the number of cylinders, cycle type (2 or 4), and firing order. These components are...