Hawa Toothed Chain
Hawa Toothed Chain – High-Precision Silent Chain
Product Overview
The Hawa Toothed Chain (also known as Hawa Silent Chain) is a high-precision toothed chain that combines the smoothness of a belt drive with the compactness of a chain drive, offering excellent economy and a long service life. Its unique design utilizes rolling contact between the hinge pins and the rocker joints (pawl/wave elements) to reduce friction and achieve pitch elongation. The result is a significant increase in power transmission capacity and a reduction in the harmful effects of polygonal action.
The link plates are shot-peened and pre-stressed, providing a high load-carrying capacity. The Hawa chain delivers three times the power capability of a conventional silent (toothed) chain and operates efficiently over a wide speed range. In high-speed zones where roller chains experience a sharp decline in performance, the Hawa chain’s capacity continues to increase.
With its undeniable and remarkable advantages in many applications, the Hawa chain is ideal for high-speed prime movers such as diesel engines and pneumatic motors for power transmission.
Key Features & Benefits
| Feature | Benefit |
|---|---|
| Rolling action between pins and rocker joints | Reduces friction, enables pitch elongation, and minimizes polygonal effect |
| Shot-peened and pre-stressed link plates | High load-carrying capacity and fatigue resistance |
| Three times the power of standard silent chains | Suitable for demanding high-power applications |
| Excellent high-speed performance | Outperforms roller chains where they decline sharply |
| Belt-like smoothness + chain-like compactness | Quiet, stable, and space-efficient operation |
| Long service life & economy | Reduced maintenance and replacement costs |
Technical Advantages
Friction reduction – The rolling contact between hinge pins and rocker joints significantly lowers friction compared to sliding-contact chains.
Pitch elongation capability – Allows the chain to adapt under load, improving load distribution and reducing vibration.
Reduced polygonal effect – Provides smoother operation, especially at high speeds.
Higher power density – Delivers up to three times the power capacity of a conventional silent chain.
Speed range – Performs efficiently across a wide spectrum; power capacity increases in high-speed ranges where roller chains lose effectiveness.
Applications
High-speed prime movers – Diesel engines, pneumatic motors
Power transmission – Industrial drives requiring high speed and high load capacity
Machinery where smoothness and compactness are critical – Replaces belts or roller chains for improved performance
Any application that benefits from a quiet, high-precision toothed chain
Materials & Construction
Link plates – Shot-peened and pre-stressed for enhanced strength and fatigue life
Hinge system – Pin and rocker joint (pawl/wave) design for rolling contact
Precision – High-precision manufacturing for consistent engagement and low noise
Why Choose Hawa Chain Over Standard Silent Chains?
| Parameter | Standard Silent Chain | Hawa Toothed Chain |
|---|---|---|
| Power capacity | Baseline | 3x higher |
| High-speed performance | Declines at high speeds | Continues to increase |
| Friction mechanism | Sliding | Rolling (reduced friction) |
| Polygonal effect | Present | Minimized |
| Typical applications | General conveying & timing | High-speed power transmission (engines, etc.) |
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For custom specifications, engineering support, or pricing inquiries, please contact us. The Hawa chain can be manufactured to your exact requirements for high-speed, high-power applications.