The Shaft 48" Model - 1x15-3/8 (Part No. 0411-14099) is a replacement cold rolled steel shaft designed for newer and current 48" PolarCool evaporative cooling fans equipped with vertical internal motor supports and pillow block bearings. Precision-cut to length with keyways machined for secure connection of motor and propeller pulleys, this shaft delivers reliable power transmission and ensures smooth, efficient operation in warehouse cooling, outdoor cooling systems, and industrial air coolers. Not compatible with models using flange bearings. Requires two shear keys (SKU 1019-2417) for proper installation.

Key Features

• Cold rolled steel construction for strength and durability.
• Precision-cut to 1" diameter x 15-3/8" length.
• Includes keyways for secure connection of motor and propeller pulleys.
• Designed for newer and current 48" PolarCool models with vertical internal motor supports and pillow block bearings.
• Not compatible with models using flange bearings.
• Direct-fit replacement simplifies installation and reduces service time.

Benefits

• Restores reliable power transmission from motor to propeller for efficient airflow. 
• Cold rolled steel construction provides strength, precision, and long-lasting performance. 
• Precision-cut keyways ensure secure, aligned connection of pulleys and components. 
• Direct-fit design reduces installation complexity and downtime.
• Supports optimal performance of 48" evaporative coolers, swamp coolers, and high-velocity fans.

Applications

• Replacement shaft for newer and current 48" PolarCool evaporative cooling fans with vertical internal motor supports and pillow block bearings.
• Ideal for warehouse cooling, outdoor cooling systems, and portable evaporative air coolers.
• Suitable for industrial air coolers, swamp coolers, and high-velocity fans requiring shaft replacement.
• Recommended for maintenance inventories and service kits for facilities managing current PolarCool 48" equipment.

Compatibility & Installation Notes

• Important: This shaft is designed for newer and current 48" PolarCool models with vertical internal motor supports and pillow block bearings.
• Verify your model configuration before ordering.
• Not compatible with models using flange bearings. 
• Requires two shear keys (SKU 1019-2417) for proper installation — sold separately. 
• Disconnect power and follow lockout/tagout procedures before installation.
• Inspect keyways, pulleys, and bearings for wear or damage during installation.
• Ensure proper alignment of motor and propeller pulleys to prevent vibration and premature wear.
• Follow manufacturer installation guidelines for safe, reliable operation.

Specifications

• Material: Cold Rolled Steel
• Diameter: 1"
• Length: 15-3/8"
• Compatible Models: Newer and current 48" PolarCool models with vertical internal motor supports and pillow block bearings
• Not Compatible With: Models using flange bearings
• Required Accessories: Two shear keys (SKU 1019-2417) — sold separately

Why Choose

• Shaft 48" Model: 1x15-3/8 (0411-14099) offers a precision-engineered, durable replacement that restores reliable power transmission, simplifies installation, and ensures efficient operation across warehouse, industrial, and outdoor cooling applications.