Lennox 25M53 Fan Blade
The Lennox 25M53 Fan Blade is a precision-engineered OEM replacement part designed for high-performance heat rejection in residential condensing units. This 24-inch 3-blade fan features a 29-degree pitch and a 1/2-inch bore, ensuring optimal static pressure management and airflow efficiency. Constructed with a hub on the discharge side, it is designed for CW facing discharge rotation, making it a direct match for specific Lennox HSXA15 and HSXA19 series models, as well as compatible units from Allied, Armstrong, and Ducane. As a veteran technician knows, maintaining the correct blade geometry is critical for preventing motor bearing wear and ensuring the condenser fan assembly operates without excessive vibration or decibel spikes.
Key Benefits- Direct OEM Compatibility: Ensures a perfect fit for Lennox 25M5301 and Revcor 25M5301 motor assemblies without the need for field modifications.
- Optimized Heat Transfer: The 29-degree pitch is calibrated to move the necessary CFM to maintain head pressures within manufacturer specifications.
- Reduced Mechanical Stress: Precision balancing at the factory helps extend the service life of the condenser fan motor by minimizing radial load.
- Rugged Construction: Built to withstand the high-ambient conditions of outdoor environments while resisting blade deformation.
What is the correct rotation for the Lennox 25M53?
This blade is designed for Clockwise (CW) rotation when facing the discharge side. Always verify the motor lead orientation before installation to ensure proper airflow direction across the coil.
Will this blade fit a 5/8-inch motor shaft?
No, this specific part features a 1/2-inch bore. Attempting to ream the hub to fit a larger shaft will compromise the balance and integrity of the assembly.
How do I ensure the blade is positioned correctly on the shaft?
For most Lennox outdoor units, consistent heat rejection relies on a "1/3 out, 2/3 in" rule relative to the venturi or shroud. Check the original service manual for specific 25M53 fan blade depth settings to avoid turbulence.
This item is not eligible for free shipping.
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.
Lennox 25M53 Fan Blade
The Lennox 25M53 Fan Blade is a precision-engineered OEM replacement part designed for high-performance heat rejection in residential condensing units. This 24-inch 3-blade fan features a 29-degree pitch and a 1/2-inch bore, ensuring optimal static pressure management and airflow efficiency. Constructed with a hub on the discharge side, it is designed for CW facing discharge rotation, making it a direct match for specific Lennox HSXA15 and HSXA19 series models, as well as compatible units from Allied, Armstrong, and Ducane. As a veteran technician knows, maintaining the correct blade geometry is critical for preventing motor bearing wear and ensuring the condenser fan assembly operates without excessive vibration or decibel spikes.
Key Benefits- Direct OEM Compatibility: Ensures a perfect fit for Lennox 25M5301 and Revcor 25M5301 motor assemblies without the need for field modifications.
- Optimized Heat Transfer: The 29-degree pitch is calibrated to move the necessary CFM to maintain head pressures within manufacturer specifications.
- Reduced Mechanical Stress: Precision balancing at the factory helps extend the service life of the condenser fan motor by minimizing radial load.
- Rugged Construction: Built to withstand the high-ambient conditions of outdoor environments while resisting blade deformation.
What is the correct rotation for the Lennox 25M53?
This blade is designed for Clockwise (CW) rotation when facing the discharge side. Always verify the motor lead orientation before installation to ensure proper airflow direction across the coil.
Will this blade fit a 5/8-inch motor shaft?
No, this specific part features a 1/2-inch bore. Attempting to ream the hub to fit a larger shaft will compromise the balance and integrity of the assembly.
How do I ensure the blade is positioned correctly on the shaft?
For most Lennox outdoor units, consistent heat rejection relies on a "1/3 out, 2/3 in" rule relative to the venturi or shroud. Check the original service manual for specific 25M53 fan blade depth settings to avoid turbulence.
This item is not eligible for free shipping.
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.
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Product Information
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Description
The Lennox 25M53 Fan Blade is a precision-engineered OEM replacement part designed for high-performance heat rejection in residential condensing units. This 24-inch 3-blade fan features a 29-degree pitch and a 1/2-inch bore, ensuring optimal static pressure management and airflow efficiency. Constructed with a hub on the discharge side, it is designed for CW facing discharge rotation, making it a direct match for specific Lennox HSXA15 and HSXA19 series models, as well as compatible units from Allied, Armstrong, and Ducane. As a veteran technician knows, maintaining the correct blade geometry is critical for preventing motor bearing wear and ensuring the condenser fan assembly operates without excessive vibration or decibel spikes.
Key Benefits- Direct OEM Compatibility: Ensures a perfect fit for Lennox 25M5301 and Revcor 25M5301 motor assemblies without the need for field modifications.
- Optimized Heat Transfer: The 29-degree pitch is calibrated to move the necessary CFM to maintain head pressures within manufacturer specifications.
- Reduced Mechanical Stress: Precision balancing at the factory helps extend the service life of the condenser fan motor by minimizing radial load.
- Rugged Construction: Built to withstand the high-ambient conditions of outdoor environments while resisting blade deformation.
What is the correct rotation for the Lennox 25M53?
This blade is designed for Clockwise (CW) rotation when facing the discharge side. Always verify the motor lead orientation before installation to ensure proper airflow direction across the coil.
Will this blade fit a 5/8-inch motor shaft?
No, this specific part features a 1/2-inch bore. Attempting to ream the hub to fit a larger shaft will compromise the balance and integrity of the assembly.
How do I ensure the blade is positioned correctly on the shaft?
For most Lennox outdoor units, consistent heat rejection relies on a "1/3 out, 2/3 in" rule relative to the venturi or shroud. Check the original service manual for specific 25M53 fan blade depth settings to avoid turbulence.
This item is not eligible for free shipping.
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.
