Description

The CONTINENTAL CONTITECH 20039576 is a BX-section cogged V-belt designed for demanding power transmission applications in HVAC, industrial, and agricultural equipment. Sold under the belt number BX63, it features a Fiber-Reinforced Vytracord construction that delivers high tensile strength with reduced stretch over the service life of the belt. The cogged profile increases flexibility and surface contact, improving efficiency compared to standard wrapped belts. It carries an oil-resistant rating and is engineered to operate across a wide temperature range, from -40 degrees C to 60 degrees C, making it suitable for both refrigerated environments and high-heat mechanical rooms.

This belt is a standard replacement or upgrade choice for blower drives, fan assemblies, compressor drives, and other belt-driven systems that specify a BX-section belt. The BX series is commonly found in residential and light commercial HVAC units, as well as general industrial equipment. The Torque-Flex style designation indicates this belt is built for high-torque, variable-load drive systems where a standard cogged belt is required. HVAC technicians and mechanical contractors typically install this belt during scheduled drive maintenance or as a direct field replacement.

Key Features

BX section cogged V-belt with 66 inches outside length and 64.80 inches internal length
Fiber-Reinforced Vytracord construction for high tensile strength and low stretch
Cogged profile improves grip, flexibility, and drive efficiency over standard wrapped belts
Oil-resistant compound suitable for environments with incidental oil or lubricant exposure
Wide operating temperature range: -40 degrees C to 60 degrees C
Torque-Flex style design handles high-torque and variable-load drive applications

Compatibility

Designed as a direct replacement for any drive system specifying a BX63 or BX-section belt with a 66-inch outside length. Verify sheave groove profile and center-to-center distance before installation.

Installation Notes

Belt installation should be performed by a qualified HVAC technician or mechanical contractor. Always de-energize and lock out the drive system before removing or installing any belt. Do not force the belt over sheave flanges; adjust drive center distance to allow proper seating, then set tension according to equipment manufacturer specifications. Inspect sheaves for wear and misalignment before installing a new belt.