Timing and traction belts
Available models: HTD / RPP / RHP / PJ / PL
Timing and traction belts are designed for torque transmission and synchronized motion between shafts in various mechanisms. They ensure reliable, precise, and silent operation without slippage, maintaining a constant transmission ratio even under high loads and speeds.
- Manufacturing time from 7 calendar days.
- Express delivery from 3 days.
- High wear resistance.
- Custom sizing available.
Advantages of timing belts:
- Precise engagement with pulleys — high positioning and synchronization accuracy
- No slippage — constant transmission ratio
- Low noise and vibration — especially important for high-speed systems
- Resistant to oils, moisture, and wear — suitable for harsh environments
- Operation at high speeds — up to 10,000 rpm depending on the profile
- Antistatic properties (in certain series) — safe for electronics
- Durability — high resistance to stretching and material fatigue
- Lightweight and compact design
| Technical specifications of timing belts: | ||||
|---|---|---|---|---|
| Belt type | Pitch (mm) | Tooth height (mm) | Belt thickness (mm) | Angle, ° |
| MXL | 2.032 | 0.51 | 1.22 | 40° |
| XXL | 3.175 | 0.76 | 1.52 | 50° |
| XL | 5.080 | 1.27 | 2.30 | 50° |
| L | 9.525 | 1.91 | 3.60 | 40° |
| H | 12.70 | 2.29 | 4.30 | 40° |
| XH | 22.225 | 6.35 | 11.20 | 40° |
| XXH | 31.750 | 9.53 | 15.70 | 40° |
| T2.5 | 2.5 | 0.70 | 1.30 | 40° |
| T5 | 5.0 | 1.20 | 2.20 | 40° |
| T10 | 10.0 | 2.50 | 4.50 | 40° |
| T20 | 20.0 | 5.00 | 8.00 | 40° |
| AT5 | 5.0 | 1.20 | 2.70 | 50° |
| AT10 | 10.0 | 2.50 | 5.00 | 50° |
| AT20 | 20.0 | 5.00 | 8.00 | 50° |
| Timing belt diagram: | ||||
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| Technical specifications of arc-tooth timing belts HTD / RPP / RHP: | |||||
|---|---|---|---|---|---|
| Series | Type | Pitch (mm) | Tooth height (mm) | Belt thickness (mm) | |
| HTD | 3M | 3.00 | 1.22 | 2.40 | |
| 5M | 5.00 | 2.06 | 3.60 | ||
| 8M | 8.00 | 3.36 | 5.80 | ||
| 14M | 14.00 | 6.02 | 10.00 | ||
| 20M | 20.00 | 8.40 | 13.20 | ||
| STPD/STS | S2M | 2.00 | 0.76 | 1.36 | |
| S3M | 3.00 | 1.14 | 2.30 | ||
| S4.5M | 4.50 | 1.71 | 2.80 | ||
| S5M | 5.00 | 1.91 | 3.40 | ||
| S8M | 8.00 | 3.05 | 5.30 | ||
| S14M | 14.00 | 5.30 | 10.20 | ||
| RPP/RHP | P2M | 2.00 | 0.76 | 1.36 | |
| P3M | 3.00 | 1.15 | 1.90 | ||
| P5M | 5.00 | 1.95 | 3.50 | ||
| P8M | 8.00 | 3.20 | 5.50 | ||
| P14M | 14.00 | 6.00 | 10.00 | ||
| G/Y | 2G | 2.00 | 0.75 | 1.35 | |
| 3G | 3.00 | 1.14 | 2.40 | ||
| 5G | 5.00 | 1.93 | 3.80 | ||
| 8G | 8.00 | 3.02 | 5.20 | ||
| Arc-tooth timing belt diagrams: | |||||
|
HDT
STPD-STS
G-Y
RPP-RHP
|
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Advantages of traction belts:
- Enhanced wear resistance — (ultra-durable)
- Anti-slip surface — no slippage even under load
- Reinforced with cords or fabric layers — high tensile strength
- Operates in harsh conditions — temperature resistance, dust and moisture resistance
- Suitable for both vertical and horizontal load transportation
- Low elongation under load — stable traction
- Variety of coatings — for different conditions: PVC, PU, textured, etc.
| Reference table of traction belt parameters: | |||||
|---|---|---|---|---|---|
| № | Technical parameter | Type PJ | Type PK | Type PL | Type PM |
| 1 | Tooth pitch (mm) | 2.34 | 3.56 | 4.7 | 9.4 |
| 2 | Available width (mm) | 20–400 | 20–400 | 20–400 | 20–400 |
| 3 | Available thickness (mm) | 6–12 | 7–15 | 12–30 | 20–50 |
| 4 | Material | Rubber | Rubber | Rubber | Rubber |
| 5 | Tensile strength (kgf/rib) | 56–60 | 116–124 | 232–248 | 532–572 |
| 6 | Recommended pre-tension (%) | 0.5–0.6 | 0.6–0.7 | 0.75–0.85 | 0.95–1.1 |
| 7 | Load at elongation (kgf/rib) | 14–15 | 29–31 | 85–62 | 133–143 |
| 8 | Coefficient of friction (on SUS surface) | 1–2 | 1–2 | 1–2 | 1–2 |
| 9 | Recommended minimum pulley diameter (mm) | Ø50 | Ø85 | Ø150 | Ø240 |
| 10 | Recommended temperature range (°C) | –20~+80 | –20~+80 | –20~+80 | –20~+80 |
Questions & Answers
Timing belts have a toothed profile that ensures accurate torque transmission without slippage. Traction belts are flat or multi-ribbed belts designed for high loads and strong grip with pulleys.
Selection depends on operating conditions: power, load, pulley diameter, speed, and temperature range. For precise transmission, choose a timing belt; for high traction — a traction belt.
Most rubber traction and timing belts are rated for –20°C to +80°C.
The main material is wear-resistant rubber, reinforced with cord thread or synthetic fibers to increase strength.
