There are two available varnish processes for electric motors: Dip and Bake immerses a motor into a tank of varnish. Vacuum Pressure Impregnation (or VPI) is a process that places the motor into a chamber with a controlled atmosphere. The dip and bake method develops a hydro static pressure that
Mechanical failures account for the most outages in industrial rotating machinery with a high majority being a bearing failure. Bearing failure symptoms could include: an audible noise, heat, smell, smoke or vibration. Lubrication is essential to rotating equipment longevity. There is a science to intervals, composition of lubricant and amount
Journal bearings are a housing shell or metal sleeve that allows a shaft to rotate freely inside while the assembly is structurally supported. Numerous journal bearing applications exist: Journal bearings can be used in low-speed operations (5 rpm or less) in a grease lubricated brass sleeve. Pictured is an oil
Vacuum pressure impregnation, known as VPI, is a varnish process for electric motor insulation. The several-hour process begins with a prebake cycle to remove any moisture, the component is placed into the varnish chamber, a vacuum is pulled to remove air, varnish is introduced and the varnish chamber is pressurized.
Is it balance or vibration issues? Balance is the uneven distribution of weight. Vibration is shaking driven by oscillation and disturbed equilibrium. Industrial preventive maintenance is critical to operations. CMT technicians can tell if it’s balance or vibration issues or something else to keep things running smoothly. Industrial rotating equipment
Industrial blower units are used in manufacturing facilities to move large volumes of air — often critical to a production process. This machine is currently being refurbished at CMT. The repair process consists of rewinding the drive motor, machining and installing a new shaft, bearing replacement, fan inspection with NDT
