A/B/C/D V-belts are classical V-belts, categorized by their cross-sectional dimensions. These letters (A, B, C, D) are standard designations used to describe the belt width and height, as defined by standards like ANSI/RMA or DIN.
| Belt Type | Top Width (mm) | Height (mm) | Common Applications |
|---|---|---|---|
| A | 13 mm (1/2") | 8 mm | Light-duty machinery |
| B | 17 mm (5/8") | 11 mm | General industrial, HVAC |
| C | 22 mm (7/8") | 14 mm | Heavy-duty applications |
| D | 32 mm (1-1/4") | 19 mm | Very high-power transmission |
Trapezoidal cross-section for firm grip in V-groove pulleys
Made from rubber or synthetic materials with fiber reinforcements
Available in wrapped, notched (toothed), or raw edge styles
Commonly used in both single and multiple belt drives
Compressors
Pumps
Agricultural equipment
Industrial fans
Conveyor systems
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