Description
The Lennox 29W99 Blower Pulley/Sheave transfers rotational force from the motor to the blower assembly to control airflow performance. It features a 4.45-inch outside diameter and a 1-inch bore, allowing proper shaft fitment and consistent belt alignment under standard operating speeds within HVAC systems. Installed in belt-driven air handlers and furnace units, it works with v-belts to regulate blower speed and air delivery. It supports airflow adjustment, maintains pressure balance, and contributes to efficient system operation.
