B57
21/32" (17mm) top width · 57" length (1447.8mm)
Medium-duty V-belt. Handles higher loads than A section. The workhorse of industrial belt drives.
Profile B (classical)
Top width 21/32" (17mm)
Length (IC) 57"
Length (mm) 1447.8mm
Construction Wrapped (smooth)
Brands Continental, Optibelt, Dayco, Bando, Gates
GatesB57B section · 57" length
In stock
$8.24
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+ $9.99 shipping · Ships within 2–3 business days
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Specifications
| Profile | B (classical) |
| Top width | 17 mm (21/32" (17mm)) |
| Depth | 11 mm |
| Length | 57" (1447.8 mm) |
| Construction | Wrapped (smooth) |
Why This Match Is Correct
✓Cross-section profile matches (B)
✓Belt length verified (57")
✓Top width and depth within standard tolerance
✓Industry-standard interchangeable across brands
Equivalents Across Brands
| Brand | Part Number | Status |
|---|---|---|
| Continental | B57 | Current |
| Optibelt | B57 | Current |
| Dayco | B57 | Current |
| Bando | B57 | Current |
| Gates | B57 | Current |
Common Applications
- Industrial motors (1-25 HP)
- Conveyors
- Machine tools
- Air compressors
- Agricultural equipment
- Blowers
- Woodworking machines
- Printing presses
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