Rheem-Ruud 71-42538-03 Sheave Variable Pitch 1 Groove Adjustable 1-1/8" Bore 4.75"

The Rheem-Ruud 71-42538-3 A vital part of HVAC systems, particularly in belt-driven devices like exhaust fans and air handlers, is the 4.75" Sheave Variable Pitch. This sheave is made to be belt-connected to a motor, allowing rotational power to be transferred to power other HVAC devices. Its 4 lb weight and 4.75" sheave diameter with a 1-1/8" bore diameter come from its stamped steel and cast aluminum construction, which guarantees long-lasting and effective functioning. This sheave's variable pitch function makes it possible to modify belt speed ratios, giving HVAC system operating more flexibility. The ability to fine-tune fan speeds and airflow rates is essential for preserving the highest possible levels of interior comfort and energy efficiency.