3V, 5V and 8V Wedge V Belts

3V, 5V, and 8V Wedge V-Belts

High-Performance Power Transmission for Demanding Industrial Applications

3V, 5V, and 8V wedge V-belts are engineered for superior torque transfer, reduced slippage, and long service life in high-speed, high-load industrial drive systems. Designed with a narrow profile, these belts deliver greater horsepower capacity per inch of width, making them ideal for compact drive configurations where efficiency and performance are critical.

What Makes Wedge V-Belts Different?

Narrow, High-Efficiency Belt Geometry

Compared to classical V-belts, wedge belts utilize a slimmer cross-section that increases power density. As the belt “wedges” deeper into the pulley groove, traction improves and slippage decreases, resulting in:

• Higher torque transmission

• Better heat dissipation

• Longer operational life

This makes wedge belts the top choice for high-speed, heavily loaded systems.

Wedge Belt Specifications

Materials: Neoprene or EPDM rubber
Reinforcement: Polyester or aramid tensile cords
Temperature Range: -30°F to 140°F
Industry Standards: RMA/ARPM IP-22, ISO 4184

Cogged & Banded Wedge Belts

Cogged (Notched) Wedge Belts – 3VX, 5VX, 8VX

Cogged belts offer improved flexibility and cooling, providing:

• Better performance on small pulleys

• Higher efficiency

• Longer belt life

Ideal for high-speed systems or applications with frequent stop/start cycles.

Banded Wedge Belts – 3V/2, 5V/3, 8V/5

Multiple belts are joined by a reinforced backing to provide:

• Vibration resistance

• Superior belt tracking

• Even load distribution

These belts excel in shock-load and high-vibration environments such as crushers, compressors, and heavy processing machinery.

Applications

3V Belts – Light to Medium Duty

• HVAC blowers

• Agricultural machinery

• Compressors

• Small industrial tools

5V Belts – Medium to Heavy Duty

• High-capacity fans

• Industrial pumps

• Conveyors and crushers

• Processing systems

8V Belts – Extreme Heavy Duty

• Mining and quarry equipment

• Rock crushers and grinders

• Oilfield drilling rigs

• Large industrial HVAC systems

Key Benefits of Wedge V-Belts

• Higher horsepower capacity with fewer belts

• Reduced drive footprint for smaller, lighter systems

• Lower maintenance and longer service life

• Improved energy efficiency and belt stability

3V, 5V, and 8V wedge V-belts—including standard, cogged, and banded configurations—are the industry standard for high-torque, precision-driven power transmission. From HVAC to mining, they deliver the reliability and strength required for today’s most demanding applications.

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