Lennox 78M71 Variable Pitch Pulley Single Groove Cast Iron 6.5" OD 1-3/8" Bore

The Lennox 78M71 Bore Pulley is an essential element of HVAC systems used to control belt speed and tension in particular. This 1-3/8 Inch pulley is made of cast iron for long-lasting use and has a variable pitch. This enables technicians to make small adjustments to the pulley grooves to prescribe how the belt moves as well as the type of tension it carries. The tension of the belt is anessential factor for the efficiency of the HVAC equipment. This is made possible through the Lennox 78M71 Bore Pulley since it avoids belt slippage or over-tensioning. This translates to several advantages to your HVAC system.