Description
The Browning 1VP60X 1 3/8 Variable Speed 1-Groove Cast Iron Sheave is designed to transfer rotational motion between belts and pulleys while allowing adjustable speed control in drive assemblies. It operates through a variable pitch mechanism that changes belt position across the sheave face, altering output speed and torque distribution. In HVAC systems, it is commonly used in air handling units, blowers, and industrial drive systems, where it mounts on a 1-3/8” bore shaft for proper alignment and secure fitting. It enables controlled airflow adjustment and maintains balanced drive performance, while also contributing to smooth equipment operation under varying load conditions.









