Shear Key Replacement

The PolarCool Shear Key Replacement (Part No. 1019-2417) is an essential replacement component for all belt drive portable evaporative air coolers, industrial air coolers, and swamp coolers. This precision-engineered shear key creates a secure connection between the pulley and shaft, ensuring reliable power transmission in evaporative cooling fans. Used on both the fan prop pulley end of the shaft and the motor pulley end of the shaft, this shear key is a critical component for maintaining optimal performance in warehouse cooling, outdoor cooling systems, and heavy-duty evaporative coolers. Key Features Shear key replacement for all belt drive PolarCool evaporative cooling fans. Creates secure connection between pulley and shaft for reliable power transmission. Used on fan prop pulley end and motor pulley end of shaft. Compatible with all PolarCool belt drive models including 48" portable evaporative air coolers. Durable construction for long-lasting performance in industrial air cool