A139
Light-duty V-belt. The most common belt profile for fractional horsepower drives and general-purpose applications.
Profile100%
A section (classical)
Length100%
139" (3530.6mm)
Cross-section100%
13mm top × 8mm depth
Interchange100%
Industry-standard across brands
GatesA139
Pricing not yet available for this belt.
Specifications
| Profile | A (classical) |
| Top width | 13 mm (1/2" (13mm)) |
| Depth | 8 mm |
| Length | 139" (3530.6 mm) |
| Construction | Wrapped (smooth) |
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Why This Match Is Correct
✓Cross-section profile matches (A)
✓Belt length verified (139")
✓Top width and depth within standard tolerance
✓Industry-standard interchangeable across brands
Equivalents Across Brands
| Brand | Part Number | Status |
|---|---|---|
| Gates | A139 | Current |
| Continental | A139 | Current |
| Optibelt | A139 | Current |
| Dayco | A139 | Current |
| Bando | A139 | Current |
Common Applications
- Small electric motors
- Fans and blowers
- Centrifugal pumps
- Light compressors
- HVAC systems
- Washing machines
- Dryers
- Exercise equipment
HVACManufacturingConsumer goodsAgriculture
Related Belts
Adjacent lengths in the same profile.