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The JASON INDUSTRIAL 3L400 is a black rubber V-belt designed for industrial drive applications. Measuring 3/8 inch wide and 40 inches in length, this 3L-series belt transmits power between sheaves in light-duty to medium-duty mechanical drive systems. It is used in equipment where precise belt sizing and reliable grip are required. Installation is handled by maintenance technicians and mechanical contractors working on belt-driven machinery such as fans, pumps, compressors, and conveying equipment. The rubber construction provides flexibility and resistance to common shop-floor conditions.
The 3L400 fits standard 3L-profile sheave grooves found in a wide range of industrial and commercial equipment. It is suited for both single-belt and multi-belt drive configurations where a 3/8-inch top-width belt is specified. Common applications include HVAC blower assemblies, light industrial machinery, and agricultural equipment drives that call for a 3L-series belt at a 40-inch outside circumference.
Designed as an OEM-style replacement for equipment requiring a 3L-series V-belt with a 3/8 inch top width and 40 inch length. Fits standard 3L-profile sheave grooves across a broad range of industrial, commercial, and HVAC belt drive applications.
Belt replacement is performed by qualified maintenance technicians or mechanical contractors. Always de-energize and lock out the drive system before removing or installing any belt. Verify sheave alignment and condition before installing the new belt, and never pry a belt over a sheave using tools that could damage the belt cords. Tension the belt to equipment manufacturer specifications using a belt tension gauge.
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