Jason Industrial A21 Rubber V-belt 1/2 X 23 Inch

Product Description

The JASON INDUSTRIAL A21 is a rubber V-belt designed for industrial drive applications requiring reliable power transmission. This A-section belt measures 1/2 inch wide and 23 inches in length, conforming to standard A-section V-belt geometry used across a wide range of industrial and HVAC equipment. Manufactured from black rubber compound, it delivers consistent grip and flexibility under continuous load. The A21 is a direct replacement style belt suited for maintenance technicians, HVAC service professionals, and industrial mechanics performing routine drive system service or emergency replacement work.

This belt is used in light-to-medium duty drive applications including fan assemblies, blower drives, compressor drives, and general industrial machinery. A-section V-belts are among the most commonly encountered belt profiles in residential and light commercial HVAC equipment as well as manufacturing and processing equipment. The A21 is sold in standard single-belt configurations and fits wherever a standard A21 or equivalent A-section belt is specified by the equipment manufacturer.

Key Features

• A-section V-belt profile for compatibility with standard A-section sheaves and pulleys
• 1/2 inch top width and 23 inch outside circumference per A-section specification
• Black rubber construction for durability under continuous flexing and load
• Suitable for fan, blower, and general industrial drive applications
• Conforms to standard A21 belt designation for straightforward cross-referencing

Compatibility

Designed as a standard A-section replacement V-belt for industrial and HVAC drive systems requiring an A21 belt designation. Fits standard A-section grooved sheaves and pulleys rated for 1/2 inch wide belts.

Installation Notes

A-section V-belts are typically installed by HVAC technicians or industrial mechanics. Always de-energize and lock out the equipment before removing or installing drive belts. Never pry a belt over a sheave flange with sharp tools, as this can damage the belt cords and reduce service life. After installation, check belt tension and sheave alignment per the equipment manufacturer specifications before returning the unit to service.

Technical Specifications

• Belt Section: A-section
• Top Width: 1/2 inch
• Belt Length: 23 inches
• Material: Rubber
• Color: Black
• Weight: 14 pounds
• Package Quantity: 50 per unit of measure

Standard Information

• Brand: JASON INDUSTRIAL
• Manufacturer Part Number: A21