All air handling quality bearings are vibration and noise tested to check for microscopic manufacturing defects that could cause higher noise levels or premature failures of the bearings. Bore size ve…

Mounting or locking systems are used to attach the bearing cartridge to the shaft. They increase holding power, reduce vibration and, improve fan serviceability. There are four different bearing locki…

In the HVAC industry, bearings are a critical component for transferring power from the motor to the fan impeller for belt driven fans. In this module, we will review important aspects of bearings, sp…

Hanging isolators are typically used with inline fans. In addition to rubber and spring isolators, some hangers are available with a combination of both the spring and rubber element….

A damper is a common fan accessory used to control airflow. Dampers are selected based on a number of criteria, including application, fan type, and mounting orientation….

When summer comes, it is very important to know why ventilation is critical to keeping the indoor air healthy and comfortable. In some areas….