
Carrier 48DD404272 Shaft
The Carrier 48DD404272 Fan Shaft is a precision-engineered OEM replacement part designed for high-performance thermal transfer and airflow management. This 1 3/16-inch diameter fan shaft serves as the central mechanical link, transferring rotational power from the drive motor to the blower assembly with minimal vibration. Built for heavy-duty industrial and commercial applications, this shaft is compatible with a broad range of Carrier and Bryant HVAC units, including the 48DD and 48DF series rooftop units. With a weight of approximately 18.95 lbs and a length of 60 to 62 inches, it provides the structural integrity required to support large blower wheels in demanding environments. Utilizing a genuine Carrier 48DD404272 ensures the correct fitment and balance necessary to prevent premature bearing wear and maintain static pressure efficiency across the evaporator or condenser coil. For contractors performing scheduled maintenance or emergency repairs, this shaft is the standard for restoring factory-spec airflow performance.
Key Benefits:- OEM Compatibility: Specifically designed for Carrier 48DD and 48DF series equipment, ensuring seamless integration with existing pulleys and blower wheels.
- Precision Dimensions: Features a 1 3/16" shaft diameter to provide a secure, slip-free fit for higher torque transmission.
- Industrial Durability: Robust construction allows for stable operation in high-static pressure configurations and variable-speed applications.
- Vibration Reduction: Factory-balanced design minimizes mechanical stress on the motor and pillow block bearings, extending the service life of the entire drive train.
- What units are compatible with the 48DD404272? This shaft fits various Carrier and Bryant commercial rooftop units, specifically within the 48DD and 48DF lines (e.g., 48DD028). Always verify the specific model and serial number before installation.
- Does this shaft include the keyway or hardware? This listing is for the Carrier 48DD404272 shaft itself. We recommend inspecting your existing keys, pulleys, and bearings at the time of replacement to determine if additional hardware is required.
- Why is the 1 3/16" diameter critical? Many commercial blowers use specific bore sizes for their wheels and pulleys; using an incorrect diameter will lead to catastrophic mechanical failure and loss of airflow.
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.
Original: $392.22
-65%$392.22
$137.28Carrier 48DD404272 Shaft
The Carrier 48DD404272 Fan Shaft is a precision-engineered OEM replacement part designed for high-performance thermal transfer and airflow management. This 1 3/16-inch diameter fan shaft serves as the central mechanical link, transferring rotational power from the drive motor to the blower assembly with minimal vibration. Built for heavy-duty industrial and commercial applications, this shaft is compatible with a broad range of Carrier and Bryant HVAC units, including the 48DD and 48DF series rooftop units. With a weight of approximately 18.95 lbs and a length of 60 to 62 inches, it provides the structural integrity required to support large blower wheels in demanding environments. Utilizing a genuine Carrier 48DD404272 ensures the correct fitment and balance necessary to prevent premature bearing wear and maintain static pressure efficiency across the evaporator or condenser coil. For contractors performing scheduled maintenance or emergency repairs, this shaft is the standard for restoring factory-spec airflow performance.
Key Benefits:- OEM Compatibility: Specifically designed for Carrier 48DD and 48DF series equipment, ensuring seamless integration with existing pulleys and blower wheels.
- Precision Dimensions: Features a 1 3/16" shaft diameter to provide a secure, slip-free fit for higher torque transmission.
- Industrial Durability: Robust construction allows for stable operation in high-static pressure configurations and variable-speed applications.
- Vibration Reduction: Factory-balanced design minimizes mechanical stress on the motor and pillow block bearings, extending the service life of the entire drive train.
- What units are compatible with the 48DD404272? This shaft fits various Carrier and Bryant commercial rooftop units, specifically within the 48DD and 48DF lines (e.g., 48DD028). Always verify the specific model and serial number before installation.
- Does this shaft include the keyway or hardware? This listing is for the Carrier 48DD404272 shaft itself. We recommend inspecting your existing keys, pulleys, and bearings at the time of replacement to determine if additional hardware is required.
- Why is the 1 3/16" diameter critical? Many commercial blowers use specific bore sizes for their wheels and pulleys; using an incorrect diameter will lead to catastrophic mechanical failure and loss of airflow.
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.
Product Information
Product Information
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Description
The Carrier 48DD404272 Fan Shaft is a precision-engineered OEM replacement part designed for high-performance thermal transfer and airflow management. This 1 3/16-inch diameter fan shaft serves as the central mechanical link, transferring rotational power from the drive motor to the blower assembly with minimal vibration. Built for heavy-duty industrial and commercial applications, this shaft is compatible with a broad range of Carrier and Bryant HVAC units, including the 48DD and 48DF series rooftop units. With a weight of approximately 18.95 lbs and a length of 60 to 62 inches, it provides the structural integrity required to support large blower wheels in demanding environments. Utilizing a genuine Carrier 48DD404272 ensures the correct fitment and balance necessary to prevent premature bearing wear and maintain static pressure efficiency across the evaporator or condenser coil. For contractors performing scheduled maintenance or emergency repairs, this shaft is the standard for restoring factory-spec airflow performance.
Key Benefits:- OEM Compatibility: Specifically designed for Carrier 48DD and 48DF series equipment, ensuring seamless integration with existing pulleys and blower wheels.
- Precision Dimensions: Features a 1 3/16" shaft diameter to provide a secure, slip-free fit for higher torque transmission.
- Industrial Durability: Robust construction allows for stable operation in high-static pressure configurations and variable-speed applications.
- Vibration Reduction: Factory-balanced design minimizes mechanical stress on the motor and pillow block bearings, extending the service life of the entire drive train.
- What units are compatible with the 48DD404272? This shaft fits various Carrier and Bryant commercial rooftop units, specifically within the 48DD and 48DF lines (e.g., 48DD028). Always verify the specific model and serial number before installation.
- Does this shaft include the keyway or hardware? This listing is for the Carrier 48DD404272 shaft itself. We recommend inspecting your existing keys, pulleys, and bearings at the time of replacement to determine if additional hardware is required.
- Why is the 1 3/16" diameter critical? Many commercial blowers use specific bore sizes for their wheels and pulleys; using an incorrect diameter will lead to catastrophic mechanical failure and loss of airflow.
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.












