AK39H W/ 1-1/8" Bore H Bushing 3.75" Single Groove Pulley A Section V Belt 4L

AK39H Cast Iron 3.75" Single Groove Pulley with 1-1/8" Bore H Bushing

Get a complete pulley solution with this Masterdrive 3.75" Cast Iron Pulley and H-Style Split Taper Bushing. Designed to work together, this set provides maximum holding power, reduced slippage, and long service life for demanding pulley applications.

Pulley Features:

• Outside Diameter: 3.75"

• Single Groove, designed for A Section / 4L belts (1/2" Wide Groove)

• Precision-machined hub accepts H-style taper bushing

• Heavy-duty cast iron construction for strength and durability

• Smooth, efficient operation

H Bushing Features:

• Bore size: 1-1/8" with 1/4" keyway (1/4" keyway standard on 1-1/8" bore)

• Solid steel split taper construction

• Unthreaded holes (installation): Bolts pull the bushing into the pulley’s tapered bore for a secure clamp on the shaft

• Threaded holes (removal): Allow for easy pulley removal during disassembly

• Provides a stronger shaft connection than standard one-piece pulleys

Why Choose a 2-Piece Pulley?

• Flexibility – one pulley can be used with different shaft sizes by simply changing the bushing

• Secure fit – split taper design grips the shaft tightly, reducing slippage

• Easy maintenance – bushings make installation and removal quicker and simpler

• Longer life – less wear on the shaft compared to traditional fixed-bore pulleys