
Carrier P461-3706 Motor Pulley
The Carrier P461-3706 Motor Pulley is a high-performance, variable pitch sheave designed for precise airflow balancing and belt tension management in commercial HVAC systems. Engineered from heavy-duty cast iron, this 1-groove adjustable pulley features a 7/8" bore and an adjustable pitch diameter ranging from 3.4" to 4.4". This flexibility allows field technicians to fine-tune blower motor speeds and system static pressure without the need for immediate component replacement. As a genuine OEM HVAC replacement part, the P461-3706 ensures exact shaft alignment and reduces vibration, which prevents premature wear on v-belts and motor bearings. This adjustable motor pulley is standard for Carrier fan coil units and rooftop handlers where CFM adjustments are critical for meeting design specifications. By utilizing a cast iron pulley with a reliable set-screw locking mechanism, contractors can ensure consistent power transmission even under high-torque startup conditions.
Key Benefits- Precision Air Balancing: The adjustable 3.4" to 4.4" pitch range allows for granular control over blower RPM to meet specific test and balance (TAB) requirements.
- Industrial Durability: Rugged cast iron construction provides superior heat dissipation and resists grooving, extending the life of the fan belt.
- OEM Compatibility: Specifically engineered for Carrier airflow systems, ensuring a perfect 7/8" shaft fit and maintaining original equipment performance standards.
- Efficient Field Service: Simplifies speed adjustments, reducing the time required to resolve "low airflow" or "high static" service calls.
How do I adjust the pitch on the P461-3706?
Loosen the set screw on the movable flange and rotate the flange half-turn at a time to expand or contract the pitch diameter. Ensure you re-tighten the set screw securely onto the flat of the internal hub before operation.
Which belt sizes are compatible with this pulley?
This single-groove sheave is typically designed for standard A-section or AX cogged belts, often used in light commercial and residential air handlers.
Can this replace a fixed-diameter pulley?
Yes, if the motor shaft is 7/8" and the required pitch diameter falls within the 3.4" to 4.4" range. It is an ideal solution for systems where the final fan speed has not yet been determined.
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: $70.52
-65%$70.52
$24.68Carrier P461-3706 Motor Pulley
The Carrier P461-3706 Motor Pulley is a high-performance, variable pitch sheave designed for precise airflow balancing and belt tension management in commercial HVAC systems. Engineered from heavy-duty cast iron, this 1-groove adjustable pulley features a 7/8" bore and an adjustable pitch diameter ranging from 3.4" to 4.4". This flexibility allows field technicians to fine-tune blower motor speeds and system static pressure without the need for immediate component replacement. As a genuine OEM HVAC replacement part, the P461-3706 ensures exact shaft alignment and reduces vibration, which prevents premature wear on v-belts and motor bearings. This adjustable motor pulley is standard for Carrier fan coil units and rooftop handlers where CFM adjustments are critical for meeting design specifications. By utilizing a cast iron pulley with a reliable set-screw locking mechanism, contractors can ensure consistent power transmission even under high-torque startup conditions.
Key Benefits- Precision Air Balancing: The adjustable 3.4" to 4.4" pitch range allows for granular control over blower RPM to meet specific test and balance (TAB) requirements.
- Industrial Durability: Rugged cast iron construction provides superior heat dissipation and resists grooving, extending the life of the fan belt.
- OEM Compatibility: Specifically engineered for Carrier airflow systems, ensuring a perfect 7/8" shaft fit and maintaining original equipment performance standards.
- Efficient Field Service: Simplifies speed adjustments, reducing the time required to resolve "low airflow" or "high static" service calls.
How do I adjust the pitch on the P461-3706?
Loosen the set screw on the movable flange and rotate the flange half-turn at a time to expand or contract the pitch diameter. Ensure you re-tighten the set screw securely onto the flat of the internal hub before operation.
Which belt sizes are compatible with this pulley?
This single-groove sheave is typically designed for standard A-section or AX cogged belts, often used in light commercial and residential air handlers.
Can this replace a fixed-diameter pulley?
Yes, if the motor shaft is 7/8" and the required pitch diameter falls within the 3.4" to 4.4" range. It is an ideal solution for systems where the final fan speed has not yet been determined.
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
The Carrier P461-3706 Motor Pulley is a high-performance, variable pitch sheave designed for precise airflow balancing and belt tension management in commercial HVAC systems. Engineered from heavy-duty cast iron, this 1-groove adjustable pulley features a 7/8" bore and an adjustable pitch diameter ranging from 3.4" to 4.4". This flexibility allows field technicians to fine-tune blower motor speeds and system static pressure without the need for immediate component replacement. As a genuine OEM HVAC replacement part, the P461-3706 ensures exact shaft alignment and reduces vibration, which prevents premature wear on v-belts and motor bearings. This adjustable motor pulley is standard for Carrier fan coil units and rooftop handlers where CFM adjustments are critical for meeting design specifications. By utilizing a cast iron pulley with a reliable set-screw locking mechanism, contractors can ensure consistent power transmission even under high-torque startup conditions.
Key Benefits- Precision Air Balancing: The adjustable 3.4" to 4.4" pitch range allows for granular control over blower RPM to meet specific test and balance (TAB) requirements.
- Industrial Durability: Rugged cast iron construction provides superior heat dissipation and resists grooving, extending the life of the fan belt.
- OEM Compatibility: Specifically engineered for Carrier airflow systems, ensuring a perfect 7/8" shaft fit and maintaining original equipment performance standards.
- Efficient Field Service: Simplifies speed adjustments, reducing the time required to resolve "low airflow" or "high static" service calls.
How do I adjust the pitch on the P461-3706?
Loosen the set screw on the movable flange and rotate the flange half-turn at a time to expand or contract the pitch diameter. Ensure you re-tighten the set screw securely onto the flat of the internal hub before operation.
Which belt sizes are compatible with this pulley?
This single-groove sheave is typically designed for standard A-section or AX cogged belts, often used in light commercial and residential air handlers.
Can this replace a fixed-diameter pulley?
Yes, if the motor shaft is 7/8" and the required pitch diameter falls within the 3.4" to 4.4" range. It is an ideal solution for systems where the final fan speed has not yet been determined.
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.












