A18
Light-duty V-belt. The most common belt profile for fractional horsepower drives and general-purpose applications.
Profile100%
A section (metric)
Length100%
70.87" (1800mm)
Cross-section100%
12.7mm top × 10mm depth
Interchange100%
Industry-standard across brands
OptibeltSPA1800A section · 70.87" length
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$44.80
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Specifications
| Profile | SPA (metric) |
| Top width | 12.7 mm (1/2" (13mm)) |
| Depth | 10 mm |
| Length | 70.87" (1800 mm) |
| Construction | Wrapped (smooth) |
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Why This Match Is Correct
✓Cross-section profile matches (A)
✓Belt length verified (70.87")
✓Top width and depth within standard tolerance
✓Industry-standard interchangeable across brands
Equivalents Across Brands
| Brand | Part Number | Status |
|---|---|---|
| Gates | SPA1800 | Current |
| Continental | SPA1800 | Current |
| Optibelt | SPA1800 | Current |
| Dayco | SPA1800 | Current |
| Bando | SPA1800 | Current |
Common Applications
- Small electric motors
- Fans and blowers
- Centrifugal pumps
- Light compressors
- HVAC systems
- Washing machines
- Dryers
- Exercise equipment
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Related Belts
Adjacent lengths in the same profile.