Poly-V belts are classified based on rib pitch (the distance between adjacent ribs). There are additional Poly-V belt sections, including PH, PJ, PM, and EPJ, which are commonly used in specialized industrial and automotive applications. These sections refer to specific rib spacings and belt heights, optimizing them for different use cases.
| Belt Type | Rib Pitch (mm) | Rib Height (mm) | Common Applications |
|---|---|---|---|
| PH | 1.60 mm | 1.5 mm | Small appliances, medical equipment, office machines |
| PJ | 2.34 mm | 3.0 mm | Power tools, textile machinery, compact industrial drives |
| PK | 3.56 mm | 4.5 mm | Automotive (engine accessories, serpentine belts) |
| PL | 4.70 mm | 5.6 mm | Heavy-duty industrial applications (compressors, HVAC, conveyors) |
| PM | 9.40 mm | 10.2 mm | Extra-heavy-duty applications (oil rigs, mining, steel plants) |
| EPJ | 2.34 mm | 3.0 mm | Similar to PJ, but used in European standards (often found in HVAC, washing machines) |
The belt code usually follows a standard pattern:
- [Belt Type] + [Number of Ribs] + [Belt Length]
- Example: PJ6 1200 means:
- PJ section
- 6 ribs
- 1200 mm belt length
For automotive belts (PK series), you may see:
- 6PK1820
- 6 ribs
- PK section
- 1820 mm long
FEATURES:
- Good-looking appearance & High fiber strength
- Oil resistant & antistatic
- High power transmission capacity
- Temperature range: -30°C to +100°C
- Highly flexible, noise-free & smooth running
- Reduced consumption due to high output
