Continental Contitech 20039577 Bx Cogged V-belt 67 in

Product Description

The CONTINENTAL CONTITECH 20039577 is a BX-section cogged V-belt designed for power transmission in HVAC, industrial, and mechanical drive applications. Built from fiber-reinforced Vytracord, this Torque-Flex style belt delivers reliable flex and load-carrying capacity in demanding environments. It measures 67 inches outside length with an internal length of 65.80 inches. The cogged design reduces heat buildup and bending resistance, making it well suited for smaller-diameter sheaves and variable-speed drives. Rated for operation from -40 degrees C to 60 degrees C, it handles both cold-start and high-ambient conditions. The belt is also oil-resistant, adding durability in equipment rooms and mechanical spaces where fluid exposure is common.

This belt is a direct fit for systems calling for a BX64 belt designation. It is commonly installed on HVAC air handlers, condenser fan drives, blower assemblies, compressors, and general mechanical equipment that uses BX-section sheaves. HVAC technicians, millwrights, and mechanical contractors install this belt as a replacement or upgrade in both residential and light commercial applications where a standard fractional-horsepower cogged drive belt is specified.

Key Features

• BX-section cogged profile reduces bending stress on small-diameter sheaves
• Fiber-reinforced Vytracord construction for high tensile strength and dimensional stability
• Oil-resistant compound extends service life in mechanical rooms and equipment enclosures
• Wide operating temperature range: -40 degrees C to 60 degrees C
• Torque-Flex style design for smooth engagement and reduced vibration
• Belt Number BX64 with 67.0 inches outside length and 65.80 inches internal length

Compatibility

Designed as a direct replacement for BX64 belt applications using BX-section sheaves and drives in HVAC and general mechanical power transmission systems.

Installation Notes

Installation should be performed by a qualified HVAC technician or mechanical professional. Always de-energize and lock out the equipment before removing the old belt or installing the new one. Never pry or force the belt over sheave flanges; release tension from the drive first by adjusting the motor mount or idler pulley. Check sheave alignment and groove condition before installing the replacement belt, and re-tension according to the equipment manufacturer's specifications.