Aetna Idler Pulley A Section 3-1/4" OD x 1/2" ID x 7/8" Wide - AG2321-A

Aetna Bearing Company is an American manufacturer of idler pulleys, idler sprockets, and drive components for conveyor, agricultural, and industrial power transmission applications. Their components are manufactured to precise dimensional tolerances and are available in a wide range of bore sizes, pitches, and flange configurations to suit standard chain and belt drive systems.

Aetna V-belts provide the power transmission element in classical and narrow V-belt drive systems, suited to electric motors, pumps, fans, and agricultural equipment where smooth, quiet power transfer is required. They are manufactured to standard section profiles and lengths for direct replacement of worn belt drives without the need for drive re-engineering.

Where this product is used

V-belts are used in virtually every industry where rotating machinery is present:

• Electric motor drives for pumps, fans, compressors, and industrial machinery.
• Agricultural equipment including headers, spreaders, and grain augers.
• HVAC systems, workshop equipment, and general factory machinery.

Selecting the right option

Select by belt section (A, B, C, D for classical sections; 3V, 5V, 8V for narrow) and the belt length designation stamped on the existing belt. If the existing belt is worn and the designation is unreadable, measure the outside circumference and consult a belt cross-reference to identify the replacement.