WHEN TO USE DYNAMIC EQUIPMENT BALANCING TO INCREASE SERVICE LIFE

By Rod Garing

WHEN SHOULD I GET MY EQUIPMENT BALANCED?

Equipment needs to be balanced when it’s new or has been pulled for rebuilding or repair.

It is critical that new equipment is balanced to ensure a long trouble-free service life. Differences in castings, including voids, density and porosity, can contribute to unbalanced rotors on new equipment. Machining and fabrication tolerances also play a role in unbalanced rotors.

Equipment that has been in service for an extended period of time can develop an unbalanced rotor. Buildup from deposits, corrosion and wear contribute to this unbalance.  Cavitation in pumps can also accelerate an unbalanced condition.

WHY IS EQUIPMENT BALANCING SO IMPORTANT?

Unbalanced rotors cause stress on the supporting structure of the equipment—this includes bearings, seals and shafting. Bearings will experience an increased load resulting in decreased service life. Unbalanced rotors also produce vibration, which causes a number of issues. Vibration may cause seal faces to separate or cause bounce resulting in cracked faces and seal failure. Vibration also increases fretting under the oil seals and mechanical seals resulting in shaft damage.

Dynamic balancing minimizes stress and vibration in order to increase service life of the equipment. It is one of the most cost effective ways to provide value to industrial equipment owners.

OTP Industrial Solutions is pleased to assist equipment owners with their dynamic balancing requirements. Please contact us to discuss your balancing needs.