Fractional Horsepower V-Belts
Regular fractional horsepower V-belts, also known as classical V belts or standard V belts, are the most common type of V belt used for power transmission. They are a reliable and cost-effective solution for various industrial and agricultural applications.
Fractional horsepower V-belts get their name from their trapezoidal cross-section, resembling the letter "V". This design allows them to wedge into the grooves of pulleys, creating friction and transmitting power between the driver and driven shafts.
Available Sizes
Regular V-belts, as mentioned earlier, come in various sizes designated by letters (A, B, C, D, and E). Here's a more detailed breakdown of these sizes and their specifications:
Understanding fractional horsepower V-belt Sizing:
The letter designations (A, B, C, D, E) for regular V-belts represent specific dimensions that ensure proper fit within pulley grooves. These dimensions include:
Belt Top Width: This is the width of the flat top surface of the V-belt.
Belt Height: This is the overall height of the V-belt, measured from the top surface to the bottom.
V-Belt Size Chart
Here's a table outlining the standard dimensions for classical V-belts according to their letter designation:
| Belt Size | Top Width (in) | Height (in) |
| A | 1/2 | 5/16 |
| B | 5/8 | 13/32 |
| C | 7/8 | 17/32 |
| D | 1 1/4 | 11/16 |
| E | 1 1/2 | 1 1/8 |
Additional Considerations
- Metric V-belts: While A to E designations are common for imperial units, metric V-belts are also available. These are sized using millimeters (mm) for width and height.
- Double Angle V-belts (AA, BB, CC): These have a wider top width compared to standard V-belts of the same letter designation. They are designed for higher capacity applications
By understanding V-belt size designations and their corresponding dimensions, you can ensure that you choose the right belt for your specific application and optimize power transmission efficiency. If you're unsure about the exact size required for your equipment, consult our experts at Dixie today.
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