Description
The Lennox 78L53 Cogged V-Belt is a power transmission part with a 60-inch outside length and an 11/16-inch top width, featuring a twisted underside that reduces bending resistance and improves flexibility around smaller-diameter sheaves compared to a standard wrapped belt of the same cross-section. This pattern along the inner surface allows the belt to run cooler under load, extending service intervals in applications where the drive operates continuously over long periods. Found in HVAC systems, it connects the motor sheave to the blower, transferring rotational force across the drive without slippage while accommodating the tension and alignment tolerances of the pulley arrangement.
