Browning 3694544 4-groove Qd V-belt Sheave 6.88 in Od

Product Description

The BROWNING 3694544 is a four-groove, Quick Detachable (QD) bushed V-belt sheave designed for industrial and commercial drive applications. It accepts 5V, A, and B profile belts and features a 6.88-inch outside diameter with a belt pitch diameter of 6.7 inches for 5V belts. The bore range spans 0.625 inches to 2.25 inches, accommodating a B-style QD bushing for secure shaft mounting. Cast iron construction provides the rigidity and wear resistance required for continuous-duty belt drive systems. HVAC equipment mechanics, millwrights, and industrial service technicians install this sheave on fan drives, blower assemblies, and power transmission equipment.

This sheave is suited for residential and commercial HVAC air-handling unit fan drives, industrial blower systems, and general-purpose power transmission applications where 5V, A, or B cross-section V-belts are specified. The QD bushing design allows for fast installation and removal without the need for a press, making it practical for field service on rooftop units, large air handlers, and belt-driven industrial equipment.

Key Features

• Four grooves accommodate 5V, A, and B profile V-belts simultaneously or in matched sets
• QD bushing mount with B-style bushing for tool-free shaft installation and removal
• 6.88-inch outside diameter with 6.7-inch belt pitch diameter for 5V cross-section
• Bore range of 0.625 inches to 2.25 inches for flexible shaft fitment
• Cast iron construction for durability in continuous-duty drive applications

Compatibility

Designed for use with 5V, A, and B cross-section V-belts on systems requiring a B-style QD bushing. Accepts any shaft diameter within the 0.625-inch to 2.25-inch bore range when paired with the appropriate B-style QD bushing.

Installation Notes

Installation and removal should be performed by a qualified mechanic or HVAC technician. Disconnect and lock out all power to the drive system before handling the sheave or bushing. Ensure the mating shaft is clean and free of burrs before seating the QD bushing. Verify belt tension and sheave alignment with a straightedge or laser alignment tool after installation to prevent premature belt and bearing wear.