Browning 3MVP50B64X 1 1/8 Sheave

The Browning 3MVP50B64X is a high-performance multi-groove variable pitch sheave engineered for demanding HVACR blower and fan applications. Designed with a 1-1/8 inch finished bore and a 6.68 inch outside diameter, this 3-groove component allows for precise pitch diameter adjustment to fine-tune system CFM and static pressure requirements. Constructed from high-grade cast iron, it ensures maximum durability and vibration dampening in heavy-duty belt-driven systems. The 3MVP50B64X sheave is compatible with 3L, 4L, 5L, A, B, and 5V belt profiles, providing versatile drive ratio flexibility for contractors managing fluctuating load conditions. Its precision-machined threads and heavy-duty locking screws prevent pitch drift, maintaining consistent HVAC drive alignment. By integrating this Browning variable speed pulley, technicians can optimize motor efficiency and system performance without replacing entire motor-drive assemblies, making it a critical component for air handler maintenance and system balancing.

Key Benefits

• Precision Variable Pitch: Allows for accurate fan speed adjustment to meet specific system balancing requirements.
• Multi-Groove Configuration: The 3-groove design supports higher horsepower loads and provides redundant power transmission.
• Rugged Construction: Machined from high-quality cast iron to resist wear and maintain belt grip in high-torque environments.
• Broad Compatibility: Engineered to function seamlessly with multiple belt cross-sections, reducing the need for extensive localized inventory.
• Finished Bore Design: Includes standard keyway and setscrews for immediate installation on 1-1/8 inch motor shafts.

Common Questions

What belt sections are compatible with the 3MVP50B64X?
This sheave is designed to work with A and B classical V-belts, as well as 5V, 3L, 4L, and 5L series belts, depending on the required pitch diameter settings.

How do I adjust the pitch diameter on this Browning sheave?
Loosen the locking setscrews and rotate the adjustable flange to the desired width. Ensure all flanges are adjusted equally to maintain proper belt alignment across all three grooves.

Can this sheave be used on both supply and exhaust fans?
Yes, as long as the motor shaft is 1-1/8 inches and the total horsepower and torque requirements fall within the 3-groove rating of the 6.68" O.D. frame.

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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.