Continental Contitech 20039590 BX77 Cogged V-belt 80 in

Product Description

The CONTINENTAL CONTITECH 20039590 is a BX-section cogged V-belt rated for demanding drive applications in HVAC, industrial, and mechanical systems. Manufactured under the Torque-Flex style, it features a Fiber-Reinforced Vytracord construction that delivers high tensile strength with flexible performance across a wide temperature range. The cogged profile reduces bending resistance, improves heat dissipation, and increases power transmission efficiency compared to standard wrapped belts. This belt measures 80.0 inches outside length with a 78.80-inch internal length and carries oil-resistant properties that extend service life in contaminated drive environments.

This BX77 cogged V-belt is suited for use in residential and light commercial HVAC blower drives, refrigeration equipment, agricultural machinery, and general industrial power transmission setups. The BX section is a common replacement profile found in belt-driven air handlers, fan coil units, and package unit blower assemblies. It is typically installed by HVAC technicians and mechanical service professionals performing routine belt drive maintenance or equipment refurbishment.

Key Features

• Cogged profile reduces bending stress and improves power transmission efficiency over standard wrapped belts
• Fiber-Reinforced Vytracord construction provides high tensile strength and dimensional stability
• Oil-resistant compound extends belt life in grease- or oil-contaminated drive environments
• Wide operating temperature range: -40 degrees F (-40 degrees C) minimum to 140 degrees F (60 degrees C) maximum
• BX section with 80.0-inch outside length and 78.80-inch internal length for precise drive sizing
• Torque-Flex style design for flexibility on smaller sheave diameters

Compatibility

Designed as an OEM-style replacement for BX77-profile cogged V-belt applications across HVAC blower drives, fan assemblies, and general industrial belt drive systems requiring a BX-section belt with an 80.0-inch outside length.

Installation Notes

Belt replacement should be performed with the drive system fully de-energized and locked out per applicable NFPA 70E or facility lockout/tagout procedures. Inspect sheaves for wear, misalignment, or damage before installing a new belt, as worn sheave grooves will accelerate belt wear. Set belt tension according to the equipment manufacturer's deflection specifications using a belt tension gauge. Never pry a belt onto a sheave with tools, as this can damage internal cords.