Rectorseal 74341 Classical V-belt A37 A-section 39 Inch

Product Description

The RECTORSEAL 74341 is a classical A-section V-belt designed for HVAC blower drives and light-duty motor applications. It features a molded wrapped fabric cover construction with an oil and heat resistant rubber compound, making it well suited for continuous duty in mechanical drive systems. The belt carries a static-dissipating design that makes it appropriate for fractional horsepower drives. Outside length is 39 inches and inside length is 37 inches. The cross-section follows the standard A-section profile with a nominal top width of 0.5 inches and a thickness of 0.3125 inches. HVAC technicians and mechanical contractors install this belt as a direct replacement on blower and fan drive assemblies.

This belt is used in residential and light commercial HVAC blower drive applications, including air handler and furnace blower assemblies that use a single belt configuration. It is also suited for general light-duty motor-to-shaft drives in equipment where an A-section classical belt is specified. The A37 designation identifies the inside length of 37 inches, which is the standard sizing convention for classical V-belts in this series.

Key Features

• Classical A-section profile with 0.5-inch nominal top width and 0.3125-inch thickness
• Outside length of 39 inches, inside length of 37 inches
• Wrapped fabric cover construction for durability and flex resistance
• Oil and heat resistant rubber compound for continuous-duty operation
• Static-dissipating design suitable for fractional horsepower drives
• Single belt configuration for standard blower and fan drive systems

Compatibility

Designed as an OEM-style replacement classical A-section V-belt for HVAC blower drives and light-duty motor drive applications that specify an A37 belt size.

Installation Notes

Installation is typically performed by a licensed HVAC technician or mechanical contractor. Power must be disconnected and locked out at the disconnect or breaker before removing the blower access panel or adjusting drive components. Belt tension should be set according to the equipment manufacturer's specifications using a belt tension gauge. Inspect the sheaves and pulleys for wear or misalignment before installing a new belt.

Technical Specifications

• Belt Section: A (Classical)
• Outside Length: 39 inches
• Inside Length: 37 inches
• Top Width: 0.5 inches
• Thickness: 0.3125 inches
• Construction: Wrapped fabric cover
• Compound: Oil and heat resistant rubber
• Design: Static dissipating
• Configuration: Single belt
• Application: Fractional horsepower drives, HVAC blower drives

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: 74341