The Browning 2VP56X 1 1/8 is a heavy-duty, two-groove variable pitch sheave engineered for precise speed adjustment in demanding HVACR drive systems. Featuring a 5.35″ outside diameter and a 1-1/8″ fixed bore with a standard keyway, this cast iron pulley provides the mechanical advantage and durability required for reliable torque transmission. It supports a wide range of belt profiles, including 3L, 4L, A, AX, 5L, B, and BX V-belts, offering a variable pitch range of 3.9–5.4″. This flexibility allows technicians to fine-tune fan and blower speeds without changing components. Constructed with high-grade cast iron and finished for precise balance, this variable speed pulley minimizes vibration and extends the life of internal motor bearings. Designed as a direct-fit solution for centrifugal fans and ventilation units, the 2VP56X 1 1/8 finish bore sheave is the industry standard for maintaining optimal airflow in commercial mechanical rooms.
Key Benefits
Versatile Compatibility: Designed for use with 3L, 4L, A, AX, 5L, B, and BX belt sections.
Precise Tuning: 3.9″ to 5.4″ variable pitch allows for exact CFM adjustment in HVAC systems.
Industrial Durability: Rugged cast iron construction ensures resistance to wear and thermal deformation.
Reduced Vibration: Precision-machined finished bore with 1/4″ x 1/8″ keyway provides a secure, balanced shaft fit.
Common Questions
What is the adjustment range for this sheave? The 2VP56X offers 6 turns of adjustment, providing a variable pitch diameter from 3.9″ up to 5.4″ depending on the belt section utilized.
Does this sheave require a separate bushing? No, this is a fixed bore (finished bore) sheave with a 1-1/8″ ID, designed to mount directly onto a motor shaft with a standard keyway.
Can I use this with AX or BX notched belts? Yes, it is fully compatible with both standard (A, B) and notched (AX, BX) V-belts for higher torque applications.
This item is not eligible for free shipping.
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.
