Megadyne 4L520 Type a V-belt 52 Inch Oc

Product Description

The MEGADYNE 4L520 is a Type-A V-belt designed for continuous power transmission in general industry, HVAC equipment, lawn and garden, and agricultural applications. It measures 0.5 inches wide and 0.31 inches thick, with a 52-inch outside circumference and a 50-inch inside length. The belt is constructed with a natural rubber and SBR compound body, a polyester cord tensile member, and a cotton and polyester blend cover. It is rated oil and heat resistant, making it suitable for service in demanding mechanical environments. Installation and replacement are performed by HVAC technicians, equipment mechanics, and service professionals working on belt-driven systems.

The 4L520 fits belt-driven systems that require a standard fractional-horsepower Type-A profile. Typical applications include blower and fan drives in HVAC air handlers and rooftop units, small engine drives in lawn tractors and garden equipment, and general-purpose conveyor and pump drives in light industrial settings. Its ARPM-compliant dimensions ensure cross-compatibility with standard Type-A sheaves and pulleys used across these industries.

Key Features

• Type-A profile: 0.5 inch top width, 0.31 inch thickness
• 52-inch outside circumference, 50-inch inside length
• Natural rubber and SBR compound body for oil and heat resistance
• Polyester cord tensile member for dimensional stability under load
• Cotton and polyester blend cover for abrasion resistance
• Meets ARPM applicable standard for fractional-horsepower V-belt dimensions

Compatibility

Designed as a standard Type-A V-belt replacement for belt-driven HVAC equipment, general industry machinery, lawn and garden equipment, and agricultural equipment using ARPM-standard Type-A sheaves and pulleys.

Installation Notes

Belt replacement is typically performed by HVAC technicians or equipment mechanics. Always de-energize and lock out the equipment before removing guards or handling the belt. Adjust sheave center distance to allow belt installation without forcing the belt over the sheave flanges, then tension according to the equipment manufacturer's specification. Inspect sheave grooves for wear before installing a new belt.

Technical Specifications

• Type: A
• Top Width: 0.5 inches
• Thickness: 0.31 inches
• Outside Circumference: 52 inches
• Inside Length: 50 inches
• Body Material: Natural Rubber and SBR Compound
• Cord Material: Polyester
• Cover Material: Cotton and Polyester Blend
• Weight: 0.3 pounds
• Applicable Standard: ARPM
• Application: General Industry, HVAC Equipment, Lawn and Garden, Agriculture

Standard Information

• Brand: MEGADYNE
• Manufacturer Part Number: 4L520