Dial 6644 High Rise Pillow Block Bearing Assembly 3/4 Inch

Product Description

The Dial 6644 is a high rise pillow block bearing assembly designed for evaporative coolers. It is a direct replacement part built for Arctic Circle, Arvin, and McGraw evaporative cooler units. HVAC technicians and maintenance professionals rely on this bearing assembly to keep cooler blower shafts spinning smoothly and efficiently throughout the cooling season. The assembly reduces friction between moving parts, which minimizes wear on the motor and blower components over time. Reduced friction also means quieter operation, which is important in residential and light commercial settings where noise levels matter. The high rise design raises the bearing block above the mounting surface, which improves shaft alignment and stability. This added stability prevents unnecessary lateral movement and reduces the chance of premature bearing failure. The bore size on this assembly is 3 quarters of an inch, ensuring a precise fit on compatible cooler shafts. A proper fit is critical for maintaining shaft balance and avoiding vibration-related damage. The steel construction gives this part the strength it needs to handle continuous operation in the warm, humid conditions inside an evaporative cooler housing. Steel also resists the mechanical stress caused by vibration during blower motor operation. The grey finish adds a layer of corrosion resistance that helps extend service life in moist environments. Installation is straightforward, making this a practical choice for field technicians who need to complete repairs quickly. This part restores cooler efficiency and extends the working life of the overall unit. Evaporative cooler bearing assemblies are a common replacement item during seasonal maintenance and breakdown service calls. Having the correct OEM-compatible part on hand speeds up repair time and reduces downtime for end users. The Dial 6644 is a reliable, purpose-built component for keeping evaporative cooling systems performing at their best.

• Direct replacement bearing assembly for Arctic Circle, Arvin, and McGraw evaporative coolers
• High rise pillow block design improves shaft stability and reduces vibration-related wear
• Steel construction withstands moisture, heat, and continuous mechanical stress

Product Highlights

The Dial 6644 high rise pillow block bearing assembly provides a precise, durable fit for compatible evaporative cooler shafts, reducing friction and extending the service life of cooler motors and blowers. It is a direct replacement part built for fast, reliable installation in the field.

Product Information

Standard Information

• Brand: DIAL
• Manufacturer Part Number: 6644

Technical Specifications

• Diameter: 3/4 inches
• Color: Grey
• Material: Steel
• Product Type: Bearing Assembly