Description
The York S1-02812385700 1-Groove Variable Sheave 7/8″ bore is a drive component used in air handling units to adjust belt-driven fan or blower speed. It is installed on motor shafts in HVAC systems where variable pitch adjustment is required to regulate airflow and system pressure. The sheave works by changing its effective diameter, allowing fine-tuning of driven equipment speed without replacing belts or motors. It is commonly used in commercial applications to support energy-efficient airflow control and maintain balanced performance in ventilation and cooling system under varying load conditions.
