Engine Mount Isolator

Just search for "isolator mounts". There are many companies who make them. Most have design guidelines and help on their web sites.

This is not rocket science, although rocket components are sometimes mounted with isolators.

Vibration/Isolation Mounts from The Rubber Group

As has been noted, its really not rocket science when isolating a rigid skid. However there are considerations to be made, listed are but a few;

A- ENVIROMENT, harsh chemicals, etc that may damage a rubber mount??? If so, there are spring type that may be considered.

B- Weight of each end of the skid, consider that the components on the skid may not be of equal weight and this will strongly affect the placement and number of mounts needed.

C- Torque, largely depending upon the size and type of equipment you are attempting to isolate.

Tim

i've seen isolators on every a/c pump i've installed.

Are you talking about pumps--or compressors?

Assuming the motor is driving something, then depending on the drive connection it is possible that that will also have to be included. The weight of the motor and attachments, and any subframe, should be found, decide the main frequency to be isolated (possibly the motor rpm). Select suitable mountings based on their deflection (which has a relationship to its frequency isolation) and positioning on the subframe.

As it is skid mounting, I am assuming it is a simple arrangement with no significant angle changes.

Rubber mount information can be easily obtained from Rubber mount manufacturers websites.

An electric motor normally has very little vibration, usually the vibration of a system comes from the device driven by the motor, or from mis-alignment between the motor and the driven device.

The proper search term is "vibration mount". Vibrationmounts.com is a good source for both information and parts.

The key parameters to consider are weight/mass, moment (is the isolated equipment tilted at an angle which would subject the mount to shear stress) and the frequencies you want to isolate. The type of mounts you need will depend on what you're trying to accomplish. Do you need to isolate this device from nearby equipment? Are you trying to reduce radiated noise? Is the driven equipment inherently vibrational (a hammer mill or crusher) and you are trying to protect the motor? Each of these functions requires a different isolation system design.