Continental Contitech 20039563 Cogged V-belt BX50

Product Description

The CONTINENTAL CONTITECH 20039563 is a BX-section cogged V-belt designed for power transmission in HVAC, industrial, and mechanical drive applications. Built with Fiber-Reinforced Vytracord construction, this belt delivers high tensile strength and resistance to stretching under load. The cogged profile reduces bending resistance and heat buildup, allowing it to run on smaller sheaves while maintaining efficient torque transfer. With an outside length of 53.0 inches and an internal length of 51.80 inches, it fits standard BX50 drive configurations. HVAC technicians and mechanical contractors install this belt on blower assemblies, compressors, and auxiliary drive systems.

This belt is suited for residential and light commercial HVAC blower drives, refrigeration unit drives, and general industrial power transmission setups that call for a BX-section belt. The oil-resistant compound makes it appropriate for environments where incidental fluid exposure is a concern. Its Torque-Flex style allows it to flex around tighter sheave diameters than standard wrapped belts, making it a practical choice where space constraints limit drive geometry. HVAC service technicians frequently specify this belt as a direct replacement in forced-air furnace and air handler blower systems.

Key Features

• BX-section cogged profile reduces heat buildup and bending resistance on smaller sheaves
• Fiber-Reinforced Vytracord construction provides high tensile strength and low stretch
• Oil-resistant compound rated for environments with incidental fluid exposure
• Torque-Flex style accommodates tighter drive geometries than standard wrapped belts
• Operating temperature range: -40 degrees F to 140 degrees F (-40 C to 60 C)
• Outside length 53.0 inches, internal length 51.80 inches, Belt Number BX50

Compatibility

Designed as an OEM-style replacement for BX50 drive applications in HVAC blower assemblies, refrigeration units, and general industrial power transmission systems requiring a BX-section cogged V-belt.

Installation Notes

Belt replacement should be performed by a qualified HVAC technician or mechanical contractor. Disconnect and lock out all power to the equipment before removing the old belt or accessing the drive assembly. Proper sheave alignment and correct belt tension are critical to belt life and drive efficiency — use a tension gauge and alignment tool where possible. Never pry a belt onto a sheave with a tool, as this can damage the cord structure.