AK39H Cast Iron 3.75" Single Groove Pulley A Section V Belt 4L For H Bushing

(AK39H) Cast Iron 3.75" Single Groove Cast Iron Pulley 

 A Section / 4L – for use with H bushing

Looking for a durable and dependable pulley solution? The Masterdrive Cast Iron Single Groove Pulley is built for long-lasting performance and reliability in demanding applications. Designed to fit A Section / 4L belts, this pulley provides smooth and reliable power transmission in the toughest of environments.

This pulley is designed for use with an H-style taper bushing (sold separately). The pulley hub is precision-tapered to accept the bushing, which is bored to fit your shaft size.

The H bushing features two sets of holes:

• Unthreaded holes (installation): Bolts are inserted through the bushing’s unthreaded holes into the pulley’s threaded holes. Tightening these bolts draws the bushing into the tapered bore, securely clamping it onto the shaft.

• Threaded holes (removal): These are used only when separating the pulley from the bushing during disassembly.

This two-piece design provides a much more secure shaft connection compared to standard one-piece pulleys, reducing slippage and ensuring reliable performance.

Crafted from solid cast iron, this pulley delivers strength, durability, and a long service life, making it ideal for demanding industrial and mechanical applications.

Specifications:

• Outside Diameter: 3.75"

• Belt Type: A Section / 4L

• Bore Size: Tapered for use with H Bushing

• Construction: Solid cast iron

Key Benefits:

• Heavy-duty cast iron construction for long service life
  

• Compatible with A Section (4L) belts for versatile use

• Precision-machined for smooth, efficient operation