Rheem-Ruud 51-22858-01 Motor

The Rheem-Ruud 51-22858-01 Motor is a high-performance direct drive blower motor engineered for reliability in residential and light commercial HVAC systems. This 1/2 HP furnace motor operates on 120Vac, single-phase power, delivering a consistent 1075 RPM. As a Permanent Split Capacitor (PSC) motor, it provides efficient operation and simplified wiring for field replacements. Designed with a 48 NEMA frame size and an open air over (OAO) enclosure, it utilizes sleeve bearings for quiet, long-term service in the airflow stream. The 3-speed taps allow for precise CFM adjustment to match the static pressure requirements of the specific air handler or furnace. This CCW (Counter-Clockwise) rotation motor features a 1/2" x 3 1/2" shaft and supports both shell-band and shell-screw mounting configurations, ensuring compatibility with a wide range of Rheem, Ruud, and WeatherKing blower assemblies.

• Versatile Mounting: Supports shell-band or shell-screw mounting for seamless integration into various Rheem-Ruud blower motor housings.
• Optimized Airflow Control: Features 3 distinct speed settings to fine-tune system performance and maximize indoor comfort.
• Durable Construction: Built with sleeve bearings and an OAO enclosure for dependable performance in demanding air-moving applications.
• Simplified Retrofitting: Standard 48 frame and 1/2" diameter shaft make this 1075 RPM 3-speed motor a reliable drop-in replacement for worn OEM components.

What is the correct rotation for this motor?
This motor is lead-end counter-clockwise (CCWLE) rotation, which is standard for most residential HVAC blower motor replacement applications in this brand family.

Does this motor require a capacitor?
Yes, this is a PSC motor and requires a 7.5 MFD / 370V run capacitor (such as part 43-25136-05) for proper torque and operation.

Can I use this to replace a single-speed motor?
Yes, provided the HP, voltage, and frame size match. You would simply select the appropriate speed tap during installation and cap off the unused leads.

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.