Description
The Lennox 73K39 Double Groove Sheave/Pulley is a mechanical drive element used to transfer the rotary motion of a motor to a blower or fan assembly in HVAC systems. It has an outside diameter of 5.95 inches and a bore of 1-3/8 inches and has a two-groove belt design that fits on the motor shaft and operates with a corresponding belt to adjust the speed to deliver airflow. It helps in the appropriate operation of the mechanical drives as well as in the preservation of the planned airflow in the process of heating and cooling.
