Overview
The Gates B49 Hi-Power Belt is a wrapped classical section V-belt engineered for reliable power transmission in industrial and agricultural machinery. Built with composite, multi-purpose construction, this B-section belt meets RMA oil and heat resistant standards while providing superior durability and consistent performance across a range of demanding applications.
Key Features
- Composite construction resists oil, heat, ozone, sunlight, and weather
- Flex-Bonded polyester cords provide equal load distribution and shock absorption
- Arched top geometry prevents “dishing” and distortion of tensile section
- Flex-Weave patented cover protects belt core from oil, dirt, and heat
- EPDM material engineered to resist self-ignition during severe slippage
- V80 matching system ensures tight manufacturing tolerances for matched-set installations
Technical Specifications
- Belt Section: B (Classical)
- Top Width: 21/32 inch (0.66 inch)
- Thickness: 13/32 inch (0.41 inch)
- Outside Length: 52 inches
- Inside Circumference: 49 inches
- Weight: 0.55 lbs
- Material: Neoprene body with polyester cord reinforcement
- Temperature Range: -30°F to +185°F (-22°C to +140°C)
- Minimum Pulley Diameter: 4.775 inches
- Standards: RMA oil and heat resistant, RMA static conductivity
Typical Applications
The Gates B49 is suitable for all industrial applications, including v-flat drives. Common uses include:
- Industrial machinery and equipment drives
- Agricultural power transmission
- HVAC and ventilation systems
- Multi-duty sheave applications
- General-purpose industrial power transmission
Compatibility & Replacements
Compatible With
- All standard B-section sheaves and pulleys
- Multi-Duty Sheaves (manufacturer-recommended)
- Industrial machinery requiring classical V-belt construction
- Single and multi-belt drive systems
Replaces / Drop-In Replacement For
The Gates B49 is a standard classical B-section belt. Other B49 V-belts from competing manufacturers can be replaced with this Gates model. Related belt sizes in the same series:
- Next Size Shorter: Gates B48 (51-inch length)
- Next Size Longer: Gates B50 (53-inch length)
- Smaller Section: Gates A49 (A-section)
Works With
- Gates Hi-Power II PowerBand II joined/banded belts (alternative for multi-belt applications)
- Gates V80 Matching System for precision matched sets
- Standard industrial drive systems and equipment












