Browning BK40 V-Belt Pulley

Description:

The BK40 3/4" Bore V-Belt Pulley is used in industrial power transmission systems to transfer rotational motion and torque between motor and driven equipment through a V-belt drive setup. Commonly installed in HVAC systems, conveyors, pumps, and light-to-medium duty industrial machinery where reliable belt-driven mechanical power transfer is required. Maintenance teams and OEM integrators use this pulley for equipment repair, drive system replacement, and mechanical power transmission setup.

Applications:

The BK40 3/4" bore pulley is commonly used in industrial drive systems, conveyor assemblies, HVAC equipment, agricultural machinery, and general-purpose motor-driven systems where V-belt power transmission is required. It is typically installed on electric motor shafts to drive fans, pumps, compressors, and light mechanical equipment in continuous-duty industrial and commercial environments.

Technical Specifications:

• Brand: OEM / Industrial Standard
• Manufacturer Part Number (MPN): BK40 (3/4" bore variant)
• Product Type: V-Belt Pulley / Sheave
• Pulley Type: BK series single-groove sheave
• Bore Size: 3/4 inch
• Outside Diameter: ~3.95 in (standard BK40 class)
• Belt Compatibility: A, AX, B, BX, 4L, 5L V-belts
• Material: Cast iron
• Groove Count: 1 groove
• Keyway: 3/16" x 3/32" (typical configuration)
• Set Screws: Included (configuration dependent)
• Mounting Type: Fixed bore shaft mount
• Function: Mechanical power transmission via belt drive
• Operating Environment: Industrial and commercial machinery systems

Common Replacements:

• Browning BK40 V-belt pulley (3/4" bore configuration)
• Martin Sprocket BK40 sheave
• Dodge industrial BK-series V-belt pulleys