Description
The Amana-Goodman B2120000 Variable Pitch Sheave adjusts belt-driven speed ratios by changing the effective pulley diameter in HVAC systems. Its movable flange design allows manual variation of belt position, altering rotational output between motor and driven blower assemblies. It is inserted in air handling units, rooftop systems, and ventilation equipment where airflow adjustment is required through mechanical speed control. Adjustable pulley geometry assists with regulated fan speed output, balanced air movement, and controlled torque transfer across belt-driven components, enabling fine-tuning of airflow delivery without changing motor operation.
