A355
1/2" (13mm) top width · 139.76" length (3550mm)
Light-duty V-belt. The most common belt profile for fractional horsepower drives and general-purpose applications.
Profile A (metric)
Top width 1/2" (13mm)
Length (IC) 139.76"
Length (mm) 3550mm
Construction Wrapped (smooth)
Brands Gates, Continental, Optibelt, Dayco, Bando
GatesA355
Pricing not yet available for this belt.
Specifications
| Profile | SPA (metric) |
| Top width | 12.7 mm (1/2" (13mm)) |
| Depth | 10 mm |
| Length | 139.76" (3550 mm) |
| Construction | Wrapped (smooth) |
Why This Match Is Correct
✓Cross-section profile matches (A)
✓Belt length verified (139.76")
✓Top width and depth within standard tolerance
✓Industry-standard interchangeable across brands
Equivalents Across Brands
| Brand | Part Number | Status |
|---|---|---|
| Gates | SPA3550 | Current |
| Continental | SPA3550 | Current |
| Optibelt | SPA3550 | Current |
| Dayco | SPA3550 | Current |
| Bando | SPA3550 | Current |
Common Applications
- Small electric motors
- Fans and blowers
- Centrifugal pumps
- Light compressors
- HVAC systems
- Washing machines
- Dryers
- Exercise equipment
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