Overview
The Gates A51 Hi-Power II V-belt is a wrapped classical section belt engineered for dependable power transmission across industrial automation, HVAC, conveyors, pumps, and agricultural equipment. The wrapped classical section Hi-Power V-belt has a long reputation for reliability on agricultural and industrial applications. Gates’ Hi-Power II design combines arched top geometry with Flex-Bonded polyester cords and Flex-Weave oil-resistant cover for superior durability and reduced pulley wear.
Key Features
- The arched top of the Hi-Power belt provides superior strength to prevent “dishing” and distortion of the tensile section.
- Hi-Power II Belts resist oil, heat, ozone, sunlight, weather, and aging.
- Vulcanized Flex-bonded tensile cords provide superior resistance to tensile and flexing forces, fatigue and shock loads.
- Flex-Bonded Cords are strongly bound to the body of the belt, resulting in equal load distribution and absorption of bending stress without cord deterioration.
- All sizes meet Gates UNISET tolerances, they can be installed without matching.
- Meets ARPM/RMA IP-3-2 oil and heat resistant standards and IP-3-3 static conductivity requirements.
Technical Specifications
The A51 delivers consistent performance across standard industrial duty cycles with precisely machined edges for uniform sheave contact.
Typical Applications
- Gates Hi-Power II A51 v-belts are high quality, heavy duty belts that can be used in a variety of industrial and agricultural power transmission applications. These belts are used in HVAC applications, conveyor systems, centrifugal pumps, air compressors, crushers, and more.
- Gates Hi-Power II A51 v-belts can be used individually in a single vbelt drive or can be used in sets of 2 or more belts for higher horsepower applications.
- Suitable for all industrial v-flat and sheave-groove drives
Compatibility & Replacements
Compatible With
- Standard A-section (classical) sheave and pulley grooves
- Belt drives operating at -30°C to +60°C (-22°F to +140°F)
- V80 matching system drives
- HVAC systems, conveyor systems, and centrifugal pump applications
- Oil and heat-resistant duty environments
Replaces / Drop-In Replacement For
- OEM classical A-section V-belt drives requiring A51 specification
- Direct replacement for worn or damaged A51 wrapped V-belts
- Multiple-belt systems where uniform belt matching is required
Works With
- Standard A-section pulley grooves (RMA/ARPM specification)
- Single or multi-belt power transmission systems
- Industrial automation and motion control equipment
- Gates V80 system for precision length tolerance matching






