Martin 3B74SK Bushing Bore V-Belt Pulley - A, B Belt Section, 3 Groove, 7.4 in Pitch Dia., 7.75 in O.D., Bushed, SK Series Bushing

Product Description

The Martin 3B74SK is a bushing bore V-belt pulley designed for A and B belt sections. This component features a three-groove design with a pitch diameter of seven point four inches and an outside diameter of seven point seventy-five inches. It comes equipped with an SK series bushing and is made from cast iron material. This product is known for its reliable performance in mechanical power transmission applications.

• Interchangeable with other manufacturer’s QD bushings.
• Meets industry tolerance guidelines.
• Manufactured from Class 30 gray iron for durability.

Product Highlights

This V-belt pulley is statically balanced and marked for maximum rim speed, ensuring smooth operation. Its precise machining results in a consistent finish that maintains high-quality standards.

Product Information

Standard Information

• Brand: Martin
• Country of Origin: United States

Technical Specifications

• MPN: 3B74SK
• Weight: 16.6 lbs
• Face Width: 2.5 in
• Overall Width: 2.5 in
• Pitch Diameter: 7.4 in
• Outside Diameter: 7.75 in
• Number of Grooves: 3
• Bushing Series: SK
• Bushing Bore Range: 0.5 to 2.625 in