Mickey Harp is a vibration application engineer for Ludeca Inc. Ludeca is the exclusive distributor and factory-authorized service and training center for PRUFTECHNIK alignment systems and condition monitoring products in the United States, the Caribbean and Venezuela. It is also the manufacturer and distributor of DotLine Laser and SheaveMaster Pulley alignment tools. The author can be reached at 305-591-8935 or Mickey.Harp@ludeca.com. For additional information, visit www.ludeca.com.