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Optimal Airflow: Engineered scroll design maximizes blower fan efficiency and reduces turbulence
High-Voltage Efficiency: Optimized for 480V 1PH industrial power supplies to reduce installation complexity
Constructed to handle ambient temperatures from -40°F to 176°F
Robust Construction: Built with high-grade materials to withstand the high-temperature discharge environments of industrial refrigeration systems
While it features a wide operating temperature range (-40° to 140°F)
Lennox 31K74 Blower Shaft 320734-701 Optimal Airflow: Engineered scroll designThe Lennox 31K74 Blower Shaft is a critical replacement component engineered for heavy duty rotation in residential and commercial air handlers. Measuring 18 inches in length with a 1 inch diameter, this shaft is manufactured from 1045 or C45 carbon steel to provide superior torsional strength and resistance to bowing under high torque loads. As a genuine OEM Lennox part, it ensures precise tolerance matching for blower wheel hubs and bearing
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