The 4/3V6.90SK Sheave is a 4-groove V-belt pulley engineered for reliable power transmission in industrial drive systems such as softwash rigs, pressure washers, and pump setups. With a 6.9-inch outside diameter (OD) and compatibility with 3V belts, this sheave provides optimal torque transfer while minimizing belt slippage.

Designed to fit an SK taper-lock bushing, it offers a secure, vibration-resistant mounting solution. The precision-machined cast iron construction ensures long-lasting durability and consistent performance in harsh working environments.

Key Features:

• Grooves: 4

• Belt Type: 3V V-belts

• Outside Diameter (OD): 6.9 inches

• Bushing Type: SK taper-lock (sold separately)

• Material: Cast iron

• Applications: Softwash systems, industrial pumps, generators, belt-driven equipment

• Finish: Phosphate-coated for corrosion resistance

• Balance: Machined for smooth, vibration-free operation

Specifications:

• Model: 4/3V6.90SK

• Grooves: 4

• Belt Profile: 3V

• OD: 6.90"

• Bushing Style: SK (not included)

• Material: Cast iron, phosphate-coated

• Max RPM: Up to 6,000 (varies with bushing and application)

• Use Case: Belt drives, pump systems, softwash rigs