040-190

This heavy-duty Variable Pitch Motor Pulley is an essential component for optimizing airflow in commercial HVAC systems and industrial blower assemblies. Designed with a 6.55-inch outside diameter and a 1-3/8-inch bore, this single-groove adjustable sheave allows for precise manual adjustments to fan and blower speeds. By fine-tuning the pitch diameter between 4.9 and 6.4 inches, technicians can ensure peak performance, reduce mechanical vibration, and extend the life of blower belts. Ideal for replacing worn or damaged pulleys in rooftop units and furnace motors, this durable pulley provides the reliability needed for continuous-duty ventilation applications.
Type: Blower Motor Pulley / Variable Pitch Sheave
Size: Medium-Large (6.55" OD)
Dimensions: 6.55 in × 6.55 in × Not specified
Application: Commonly used in commercial HVAC units, rooftop air handlers, industrial exhaust fans, and furnace blower motor assemblies to regulate belt-driven fan speeds.
Specifications: 1-3/8 inch bore size; Single groove design; Adjustable pitch range of 4.9 to 6.4 inches; 6.55-inch total outside diameter.