Continental Contitech 20039574 BX61 Cogged V-belt 64 in

Product Description

The CONTINENTAL CONTITECH 20039574 is a BX-section cogged V-belt, also identified as belt number BX61, with a 64.0-inch outside length and a 62.80-inch internal length. Built from fiber-reinforced Vytracord, this Torque-Flex style belt delivers high flex strength and resistance to oil contamination. The cogged profile reduces bending stress, which lowers heat buildup and extends service life on smaller-diameter sheaves. It is rated for operating temperatures from -40 degrees F (-40 C) up to 140 degrees F (60 C). HVAC technicians, millwrights, and equipment service professionals typically install this belt in belt-driven mechanical systems requiring a BX-section drive.

BX-section cogged V-belts are widely used in residential and light commercial HVAC systems, blower assemblies, compressor drives, agricultural equipment, and general industrial machinery. The BX61 designation indicates a standardized cross-section and length that fits sheave and pulley configurations designed for the BX belt series. This belt is suited for high-torque, variable-load drive applications where flex fatigue and heat resistance are critical factors. No specific OEM model compatibility data was provided for this SKU.

Key Features

• Cogged Torque-Flex construction reduces bending resistance and heat buildup on small-diameter sheaves
• Fiber-reinforced Vytracord tensile cords provide high strength and dimensional stability under load
• Oil-resistant compound resists degradation from incidental oil or grease contact
• Wide operating temperature range: -40 degrees C to 60 degrees C (-40 degrees F to 140 degrees F)
• BX61 standardized belt number ensures cross-reference compatibility with BX-section sheave systems
• 64.0-inch outside length with 62.80-inch internal length for precise drive geometry matching

Compatibility

Designed as a standard BX-section replacement V-belt for belt-driven systems requiring a BX61 cross-reference with a 64.0-inch outside length and BX-profile sheaves.

Installation Notes

Power down and lock out the drive unit before removing the old belt or installing this belt. Inspect sheaves for wear, misalignment, and proper groove profile before fitting the new belt. Do not roll or pry the belt over sheave flanges; adjust the drive center distance to allow slack installation, then tension according to the equipment manufacturer's specifications. Belt-driven HVAC blower assemblies should be inspected and tensioned only by qualified technicians familiar with the system's drive requirements.