Supco AX43 V-belt Single

Product Description

The SUPCO AX43 is a V-belt designed for use in HVAC, refrigeration, and light mechanical drive applications where a cogged or raw-edge belt is required. V-belts of this type transfer rotational power between a motor sheave and a driven component such as a blower wheel, condenser fan, or compressor pulley. Sold as a single belt, the AX43 is a direct replacement for worn or failed drive belts in systems that call for this cross-section and length designation. HVAC technicians and mechanical service pros are the primary installers.

The AX43 designation follows the industry-standard AX-series cogged V-belt classification, which indicates a specific outside circumference and cross-sectional width suited to fractional-horsepower and standard-horsepower drive systems. This belt is commonly found in residential and light commercial HVAC units, package units, and air handlers where blower or fan motors use a belt-drive configuration. It is sold individually, making it practical for single-unit service calls or as a carry-along spare.

Key Features

• AX-series cogged V-belt profile for reduced heat buildup and improved flexibility over standard wrapped belts
• Sold as a single unit, matching typical single-belt replacement service scenarios
• Fits standard AX-profile sheaves and pulleys used in belt-drive HVAC and mechanical equipment
• Drop-in replacement style requiring no special tools beyond basic belt-change hand tools

Compatibility

Designed as an OEM-style replacement for belt-drive HVAC systems, air handlers, and light mechanical equipment requiring an AX43-specification V-belt.

Installation Notes

V-belt replacement is typically performed by a licensed HVAC technician or qualified mechanical service professional. Always disconnect and lock out electrical power to the unit before removing belt guards or handling drive components. Inspect sheaves and pulleys for wear, misalignment, or debris before installing the new belt, and verify correct belt tension per equipment manufacturer guidelines after installation. Do not pry the belt onto sheaves using sharp tools that could damage the belt cords.