Full Product Description
The Dial 9217 (Size 75) Bearing is an essential component for ensuring the smooth, quiet operation of your cooler’s blower wheel. Unlike traditional metal bearings that can seize up due to hard water minerals and moisture, this plastic-housed unit is impervious to rust. It utilizes a high-performance insert that provides consistent lubrication to the shaft, reducing friction and extending the life of your cooler motor.
The universal mounting pattern ensures it fits most major brands of residential and commercial side-draft and down-draft coolers. The “Size 75” designation refers to the 3/4-inch bore, which is the standard size for many mid-sized evaporative units. By replacing worn, noisy bearings with this plastic version, you can eliminate annoying squeaking sounds and improve the overall airflow efficiency of your system.
Key Features & Benefits
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Rust & Corrosion Proof: Heavy-duty plastic housing is designed specifically for the high-moisture environment inside a swamp cooler.
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Universal Fit: Engineered to be a direct replacement for most 3/4″ bearing assemblies used by major cooler manufacturers.
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Easy Installation: The split-style design simplifies the replacement process, often allowing for installation without complete disassembly of the blower.
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Quiet Operation: Reduces shaft vibration and mechanical noise, leading to a much quieter cooling experience indoors.
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High-Strength Material: Reinforced plastic construction provides the structural integrity of metal without the vulnerability to oxidation.
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Maintenance Friendly: Features an easy-access oil hole or self-lubricating properties (depending on the specific insert) for seasonal upkeep.
Technical Specifications
| Feature | Details |
| Brand | Dial Manufacturing, Inc. |
| Model/Size | Size 75 (3/4″ Bore) |
| Housing Material | High-Impact Plastic |
| Bore Diameter | 0.75 Inches (3/4″) |
| Compatibility | Side-Draft, Down-Draft, and Mobile Coolers |
| Mounting Type | Pillow Block (Surface Mount) |
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