040-811

This premium 1/4-inch square blower motor shaft key is a vital mechanical fastener designed to secure blower wheels, pulleys, and fans to the motor drive shaft. By locking these components together, the key ensures efficient torque transfer and prevents rotational slippage, which can lead to system noise or mechanical failure. Ideal for HVAC technicians and maintenance professionals, this 5-pack of replacement keys is essential for repairing commercial rooftop units, industrial fan assemblies, and residential heating and cooling systems. Constructed for precision and durability, these keys provide a reliable fit in standard 1/4-inch keyways, restoring the performance of your ventilation and air conditioning equipment.
Type: Blower Motor Shaft Key
Size: 1/4 inch
Dimensions: 1 3/4 in × 1/4 in × 1/4 in
Application: Commonly used in HVAC systems, commercial air handlers, rooftop units, and industrial blower assemblies to lock rotating components like fan wheels to motor shafts.
Specifications: Pack of 5, square key stock, high-strength metal construction, precision-cut for 1/4" x 1/4" keyways.