Continental Contitech 20039588 Cogged V-belt Bx 78 in

Product Description

The CONTINENTAL CONTITECH 20039588 is a BX-section cogged V-belt rated for a 78-inch outside length and 76.80-inch internal length. Built with fiber-reinforced Vytracord construction, this belt delivers high tensile strength and flex resistance across a wide operating temperature range of -40 degrees F to 140 degrees F (approximately -40 degrees C to 60 degrees C). The cogged profile reduces bending resistance, which improves efficiency and extends belt life on smaller-diameter sheaves. It is oil-resistant and rated for the Torque-Flex belt style classification. HVAC technicians, equipment service pros, and mechanical contractors install this belt on blower, fan, and drive applications.

This BX75 cogged V-belt is suited for residential and commercial HVAC systems, agricultural equipment, industrial machinery, and general power transmission drives where a BX-section belt is specified. The cogged design makes it compatible with standard and small-diameter sheave setups where a conventional wrapped belt would experience excessive flex fatigue. Its oil-resistant compound makes it appropriate for environments where incidental fluid contact is expected. Typical applications include air handler blower drives, condenser fan drives, and similar belt-driven equipment.

Key Features

• BX-section cogged profile reduces bending resistance and improves drive efficiency on small-sheave applications
• Fiber-reinforced Vytracord construction provides high tensile strength and dimensional stability
• Oil-resistant compound suitable for environments with incidental fluid exposure
• Wide operating temperature range: -40 degrees C minimum to 60 degrees C maximum
• Torque-Flex style classification for high-torque, high-load drive systems
• Outside length of 78 inches, internal length of 76.80 inches

Compatibility

Designed as a direct replacement for BX75 belt applications requiring a BX-section cogged V-belt with a 78-inch outside length. Verify sheave groove profile and center-to-center distance against the BX-section specification before installation.

Installation Notes

A licensed HVAC technician or qualified mechanical technician should install this belt. Disconnect and lock out all power to the equipment before removing the old belt or installing the new one. Adjust sheave center distance to achieve proper belt tension per the equipment manufacturer specification before applying load. Do not pry the belt onto the sheave using tools that could nick or deform the cord construction.