Reducing Motor Vibration

Wrap the motor surface by v-Belts, or asbestos sheet cover over wrapped by rubber sheets on all possible free surfaces, put the entire unit into a concrete housing placed over a concrete block foundation.

what do you do with the heat then

Good question Phoenix,

Go for Asbestos or glass wool inner layer which can take up the heat.

The other option is to go for partial covered clampings or even wooden based holders over the concrete base bed

ASBESTOS?????????????????? Are you serious????????????????????

what kind of vibration are we talking about......must be pretty aggressive.

A separate motor foundation and a belt drive are perfectly acceptable and widely used. Needless to add that the belt drive should be adequately dimensioned. In industry, belt drives are much preferred as they eliminate the need for very precise alignment, as is customary in shaft to shaft coupled drives, thus saving much in maintenance work. They also absorb part of a motors starting shock.

You may use V belt or chain drive to solve your problem. In both cases, seperate foundation is required for motor.

Seems like the basic questions are:

1. what is the motor driving

2. why is the driven unit vibrating so much

3. how long do you want this motor and its driven unit to last

before designing a solution.

Belts will dampen the vibration but vibration will be transmitted over the belt and over time will cause the motor to deteriorate prematurely

Thanks for some nice answers.

The application is a motor drivng a vibrating screen, so severe and multidirectional vibrations are to be expected. The installed power is at 22kW. My concern about the separate foundation is whether the difference between the vibrations on the load and the motor chassis actually add up to the "vibration load" on the motor axis.

All vibration issues ultimately boil down to equivalent masses, springs and dampers where frequency and amplitude relate to acceleration and force.

I cannot get my head beyond the generic and into the particular without a bit clearer physical description - a diagram would help.