Reznor 195645 Fan Blade

The Reznor 195645 Fan Blade is a critical OEM replacement component engineered for precision airflow in UDX, UDAP, and UDAS-45 gas-fired unit heaters. Designed for high-performance circulation, this 10-inch diameter fan features a 5-blade configuration to maintain the specific static pressure requirements of industrial and commercial heating systems. The counterclockwise (CCW) rotation is calibrated for factory-specified blower motor assemblies, ensuring that the motor remains properly cooled while distributing heat effectively across the heat exchanger. With a standard 1/4-inch bore, this blade provides a secure, vibration-resistant fit on the motor shaft, which is essential for preventing premature bearing wear. High-quality Reznor HVAC replacement parts like the 195645 are essential for veteran contractors performing unit heater maintenance to restore original system efficiency and prevent the common "searching" or "clanking" noises associated with unbalanced or fatigued blades.

Key Benefits:

• Factory Precision: Engineered as a direct OEM replacement fan blade to ensure exact balance and performance compatibility with UDAP-45 heating units.
• Durable Construction: The five-blade design is built to withstand the thermal stress and high-cycle demands of commercial gas heaters.
• Optimized Airflow: Calibrated 10" diameter and pitch to maintain proper CFM output, protecting the heat exchanger from overheating.
• Reduced Vibrations: Precisely weighted blades minimize motor shaft wobble, extending the life of the blower motor bearings.

Common Questions: How do I confirm the rotation of my Reznor fan blade? To determine if you need a CCW rotation fan blade, look at the discharge side of the fan. The Reznor 195645 is designed for systems where the blades spin counterclockwise from this perspective. Will this blade fit a 1/2" motor shaft? No, the Reznor 195645 specification features a 1/4" bore. It is designed specifically for smaller fractional horsepower motors used in the 45k BTU series heaters. Why is my unit heater vibrating after installing a new blade? Ensure the setscrew is tightened on the flat of the motor shaft. Vibration is often caused by debris or an improper seat on the 1/4" bore, which unbalances the rotation.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.