Alignment in your machines is vital to the reliability of your operations. When two machines are misaligned, severe failure can occur causing unplanned downtime and loss of revenue. Some negative consequences are seal failure, bearing failure, energy loss from inefficiencies, increased vibration, and excessive heat. For normal operation, both of the machines’ shafts need to […]
Variable Frequency Drives (VFDs) are used to adjust the speed of motors. There are many different names for VFDs including adjustable speed drive, adjustable frequency drive, AC drive, microdrive, and inverter drive. VFDs adjust the speed of motors by changing the frequency being transferred to the motor. For example, when the VFD is receiving power […]
When the temperatures are climbing, you need a reliable cooling tower motor to keep your cooling towers running. Dreisilker stands behind the Leeson Totally Enclosed Air Open (TEAO) Cooling Tower Motors. Through many summers, the Leeson TEAO Cooling Tower motors have proven their quality and reliability for our customers. There are many features of the […]
Dreisilker is excited to announce the retirement of 5 long time employees Ken Wojciechowski, Brian O’Neill, Peggy Progo, Dave Maza and Leon Metz after 151 years of combined dedicated service. Ken Wojciechowski (37 Years) Ken has worn many hats during his tenure with Dreisilker. He has successfully managed our traffic, drivers, warehouse, shipping and receiving […]
Aegis Shaft Grounding Rings protects bearings and electric motors from damaging shaft voltages caused by variable frequency drives (VFDs). The voltages emitted by VFDs find their way to ground typically through the motor’s bearing. Some signs of these damaging currents include pitting, frosting, fluting and loss of bearing lubrication. Installing Aegis Shaft Grounding Rings to […]
“My original condenser fan motor has three wires and the replacement condenser fan motor that I bought has four wires – did I buy the wrong motor?” This is by far the most common post-transaction question that we receive from customers that have recently purchased replacement condenser fan motors. Simply put, no – you did […]
The thermometer reached 75 this past weekend in Chicago, which means we’re officially entering cooling season. Cooling season is the industry term for when we use our air conditioning units – compared to heating season for when we use our furnaces. Most people cross their fingers when turning on their air conditioners for the first […]
Infrared Thermography is a reliable method used for predictive maintenance and troubleshooting of electrical systems. During an Infrared Inspection, a trained infrared thermographer uses a high quality infrared camera to detect heat signals. The thermographer then analyzes the pictures to look for potential issues or faults. For a typical annual inspection, the thermographer evaluates the […]
When replacing a condenser fan motor, it’s always advised to replace the condenser fan blade also. Here’s the reason why – condenser fan motors commonly fail when their bearings fail. The motor’s bearings often fail when the fan blade the motor is driving isn’t balanced properly. By replacing the condenser fan blade when you replace […]
CoolBlue Inductive Absorbers protect motors and bearings from high frequency currents caused by Variable Frequency Drives. Without CoolBlue, damaging currents emitted by variable frequency drives can lead to bearing damage and ultimately electric motor failure. Some types of bearing damage include pitting, fluting, frosting of bearings, lubrication break down and overall destruction of the bearing. […]