Lennox 37L48 Fan Blade
For high-demand condensing units and commercial HVAC applications, the Lennox 37L48 Fan Blade provides the precision-engineered airflow required for optimal heat transfer. Built to meet 16" diameter specifications, this 3-wing propeller features a 32-degree pitch designed to maximize static pressure efficiency in outdoor condenser sections. As a veteran-preferred Lennox replacement part, it utilizes a 1/2" bore with a fixed hub located on the opposite discharge side to ensure a secure fit on standard motor shafts. The CCW rotation (counter-clockwise facing discharge) is critical for matching existing motor rotation to prevent system overheating. Manufactured by Lau Industries (Part #37L4801), this aluminum blade resists corrosion and maintains balance at high RPMs, reducing bearing wear on the condenser motor. Whether you are performing a routine HVAC PM service or an emergency condenser fan blade replacement, this OEM-spec component ensures your 10ACC series or compatible Lennox unit operates within original factory parameters.
Key Benefits:
- Precision Pitch: The 32-degree blade angle is optimized for high-volume air movement in restricted-flow condenser coils.
- OEM Compatibility: Directly replaces Lennox 37L48 and Lau 37L4801 for a drop-in fit without needing shaft adapters.
- Structural Integrity: High-grade aluminum wings provide a lightweight yet rigid profile to prevent "blade flex" during peak cooling cycles.
- Balanced Airflow: Factory-balanced design minimizes vibration, protecting the motor’s internal components and reducing decibel levels.
- Direct Drive Ready: Designed for an 1/2-inch motor shaft, ensuring a centralized, wobble-free installation for long-term reliability.
Common Questions:
How do I confirm the rotation for the 37L48?
This blade is rated for CCW rotation when looking at the air discharge side. Always verify your motor’s lead-end or shaft-end rotation before installation to ensure the air is pulling through the coil correctly.
What is the best way to measure the 16-inch diameter on a 3-blade fan?
For a 3-wing blade, do not measure straight across. Measure from the center of the hub to the tip of one wing and double that number, or measure from the tip of one blade to the furthest point on the circle it describes when rotating.
Can I use this for brands other than Lennox?
While optimized for Lennox, Armstrong, and Ducane units, this is a universal-spec blade from Lau Industries. It will function in any application requiring a 16", 3-blade, 32-degree pitch CCW configuration with a 1/2" bore.
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 37L48 Fan Blade
For high-demand condensing units and commercial HVAC applications, the Lennox 37L48 Fan Blade provides the precision-engineered airflow required for optimal heat transfer. Built to meet 16" diameter specifications, this 3-wing propeller features a 32-degree pitch designed to maximize static pressure efficiency in outdoor condenser sections. As a veteran-preferred Lennox replacement part, it utilizes a 1/2" bore with a fixed hub located on the opposite discharge side to ensure a secure fit on standard motor shafts. The CCW rotation (counter-clockwise facing discharge) is critical for matching existing motor rotation to prevent system overheating. Manufactured by Lau Industries (Part #37L4801), this aluminum blade resists corrosion and maintains balance at high RPMs, reducing bearing wear on the condenser motor. Whether you are performing a routine HVAC PM service or an emergency condenser fan blade replacement, this OEM-spec component ensures your 10ACC series or compatible Lennox unit operates within original factory parameters.
Key Benefits:
- Precision Pitch: The 32-degree blade angle is optimized for high-volume air movement in restricted-flow condenser coils.
- OEM Compatibility: Directly replaces Lennox 37L48 and Lau 37L4801 for a drop-in fit without needing shaft adapters.
- Structural Integrity: High-grade aluminum wings provide a lightweight yet rigid profile to prevent "blade flex" during peak cooling cycles.
- Balanced Airflow: Factory-balanced design minimizes vibration, protecting the motor’s internal components and reducing decibel levels.
- Direct Drive Ready: Designed for an 1/2-inch motor shaft, ensuring a centralized, wobble-free installation for long-term reliability.
Common Questions:
How do I confirm the rotation for the 37L48?
This blade is rated for CCW rotation when looking at the air discharge side. Always verify your motor’s lead-end or shaft-end rotation before installation to ensure the air is pulling through the coil correctly.
What is the best way to measure the 16-inch diameter on a 3-blade fan?
For a 3-wing blade, do not measure straight across. Measure from the center of the hub to the tip of one wing and double that number, or measure from the tip of one blade to the furthest point on the circle it describes when rotating.
Can I use this for brands other than Lennox?
While optimized for Lennox, Armstrong, and Ducane units, this is a universal-spec blade from Lau Industries. It will function in any application requiring a 16", 3-blade, 32-degree pitch CCW configuration with a 1/2" bore.
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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Description
For high-demand condensing units and commercial HVAC applications, the Lennox 37L48 Fan Blade provides the precision-engineered airflow required for optimal heat transfer. Built to meet 16" diameter specifications, this 3-wing propeller features a 32-degree pitch designed to maximize static pressure efficiency in outdoor condenser sections. As a veteran-preferred Lennox replacement part, it utilizes a 1/2" bore with a fixed hub located on the opposite discharge side to ensure a secure fit on standard motor shafts. The CCW rotation (counter-clockwise facing discharge) is critical for matching existing motor rotation to prevent system overheating. Manufactured by Lau Industries (Part #37L4801), this aluminum blade resists corrosion and maintains balance at high RPMs, reducing bearing wear on the condenser motor. Whether you are performing a routine HVAC PM service or an emergency condenser fan blade replacement, this OEM-spec component ensures your 10ACC series or compatible Lennox unit operates within original factory parameters.
Key Benefits:
- Precision Pitch: The 32-degree blade angle is optimized for high-volume air movement in restricted-flow condenser coils.
- OEM Compatibility: Directly replaces Lennox 37L48 and Lau 37L4801 for a drop-in fit without needing shaft adapters.
- Structural Integrity: High-grade aluminum wings provide a lightweight yet rigid profile to prevent "blade flex" during peak cooling cycles.
- Balanced Airflow: Factory-balanced design minimizes vibration, protecting the motor’s internal components and reducing decibel levels.
- Direct Drive Ready: Designed for an 1/2-inch motor shaft, ensuring a centralized, wobble-free installation for long-term reliability.
Common Questions:
How do I confirm the rotation for the 37L48?
This blade is rated for CCW rotation when looking at the air discharge side. Always verify your motor’s lead-end or shaft-end rotation before installation to ensure the air is pulling through the coil correctly.
What is the best way to measure the 16-inch diameter on a 3-blade fan?
For a 3-wing blade, do not measure straight across. Measure from the center of the hub to the tip of one wing and double that number, or measure from the tip of one blade to the furthest point on the circle it describes when rotating.
Can I use this for brands other than Lennox?
While optimized for Lennox, Armstrong, and Ducane units, this is a universal-spec blade from Lau Industries. It will function in any application requiring a 16", 3-blade, 32-degree pitch CCW configuration with a 1/2" bore.
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.
