Continental Contitech 20039627 Bx Cogged V-belt 131 in

Product Description

The CONTINENTAL CONTITECH 20039627 is a BX-section cogged V-belt rated at 131 inches outside length (129.80 inches internal length), also known by belt designation BX128. Constructed from fiber-reinforced Vytracord, this belt delivers high tensile strength and flexibility under cyclic load conditions. The cogged profile reduces bending resistance, improves heat dissipation, and increases surface grip on standard BX-compatible sheaves. Rated for operation from -40 degrees F to 140 degrees F (approximately -40 C to 60 C), it is suited for demanding mechanical drive applications where oil resistance and temperature stability are required.

This belt is used in industrial and commercial power transmission applications including HVAC blower drives, compressor drives, agricultural equipment, pump drives, and general machinery. The BX-section cogged design is commonly specified in systems where a classical B-section sheave is used but improved efficiency and flex life are needed. Installation is performed by qualified mechanical technicians or HVAC service professionals during routine drive replacement or system upgrades.

Key Features

• BX section cogged profile reduces bending loss and extends belt life compared to non-cogged B-section belts
• Fiber-reinforced Vytracord construction provides high tensile strength and dimensional stability under load
• Oil-resistant compound resists degradation from incidental oil and grease exposure
• Wide operating temperature range: -40 degrees F to 140 degrees F (-40 C to 60 C)
• 131-inch outside length (BX128 designation) fits standard BX-compatible drive systems
• Torque-Flex style design accommodates variable-speed and high-torque drive conditions

Compatibility

Designed as an OEM-style replacement for BX-section drive systems using sheaves and pulleys rated for cogged V-belts with a 131-inch outside length (BX128 designation).

Installation Notes

BX-section V-belts are installed by HVAC technicians, millwrights, or mechanical service professionals. Always de-energize and lock out the drive system before replacing a belt. Use a belt tension gauge to set proper deflection after installation and avoid using tools to force the belt over sheave flanges, as this can damage the cord structure. Inspect sheave grooves for wear before installing a new belt to ensure maximum service life.