Rheem-Ruud 70-21476-02 Blower Wheel

When you're dealing with a vibrating blower assembly or reduced airflow on a Rheem or Ruud unit, the Rheem-Ruud 70-21476-02 Blower Wheel is the direct OEM solution for high-static applications. This 11 15/16" Diameter x 7 3/16" Wide wheel features a convex disc design and a 1/2" bore hub, specifically engineered for direct drive motors. Constructed with 54 blades to maximize CFM delivery, this double inlet blower wheel ensures quiet operation and consistent static pressure. As a veteran-grade HVAC replacement part, it is designed for a clockwise (CW) rotation and features a robust hub to withstand the torque of high-efficiency motors. Whether you are performing a furnace blower wheel replacement or upgrading a worn Rheem blower fan, this precision-balanced OEM blower wheel prevents premature motor bearing failure by eliminating rotational imbalance. Ensure you verify the CW rotation and 1/2 inch shaft compatibility before installation to maintain peak system air handler blower wheel performance.

Key Benefits:

• OEM Precision: Genuine Rheem-Ruud 70-21476-02 ensures a perfect fit, eliminating the balance issues often found in generic alternatives.
• Enhanced Airflow: The 54-blade double inlet design optimizes air volume for direct drive blower wheel systems.
• Structural Integrity: Features a convex disc configuration for added strength and high-speed stability.
• Motor Protection: Precision balancing reduces vibration, extending the service life of the fan motor bearings.

Common Questions:

How do I confirm the rotation of my existing wheel?
View the wheel from the hub side. This specific 70-21476-02 model is designed for clockwise (CW) rotation. Installing a counter-clockwise wheel will significantly drop airflow and can overheat your motor.

Will this blower wheel fit a 3/4" motor shaft?
No, this wheel is specifically spec'd with a 1/2" bore. If your motor has been upgraded to a larger shaft, this wheel will not slide on. Always mic the shaft before ordering.

My blower is making a loud thumping noise; do I need to replace the whole housing?
Usually, a thumping or heavy vibration indicates the blower wheel is out of balance, has lost a weight, or has accumulated heavy debris. Replacing the wheel alone often restores silent operation without the cost of a full assembly.

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.