HT250 Gray Cast Iron Flywheel with Excellent Shock Absorption and High Pressure Resistance for Engine Stability

In the huge mechanical symphony of cars, the engine is the source of surging power, while the flywheel is the "anchor needle" to maintain the harmonious operation of this piece of music.

In the face of the severe speed fluctuation of four-stroke engine in the power, exhaust, intake and compression strokes, and the huge impact brought by frequent clutch engagement, the flywheel bears extremely severe dynamic load. In such a core hub position, the automobile flywheel made of HT250 (high-strength gray cast iron) is becoming the cornerstone to ensure the smooth and efficient operation of the vehicle with its excellent energy storage and shock absorption performance, strong structural stiffness and high cost performance.

The reason why HT250 flywheel is favored by major OEMs and aftermarket is firstly attributed to its "stable" energy storage and shock absorption characteristics.

The working characteristics of a four-stroke engine determine the natural unevenness of the crankshaft speed, and HT250 flywheel can accurately store part of the kinetic energy of the power stroke and release it in other power-consuming strokes by virtue of its large moment of inertia, thus overcoming the friction resistance and keeping the crankshaft in extremely symmetrical and stable rotation.

At the same time, the unique flake graphite in HT250 gray cast iron matrix gives the flywheel excellent vibration reduction performance, which can effectively absorb and attenuate the mechanical vibration inside the engine, greatly reduce the running noise, and create a quiet and smooth driving experience for the cockpit.

In addition to excellent dynamic balance ability, HT250 flywheel is a wear-resistant model of "combining rigidity with flexibility".

As a key component connecting the engine and the transmission system, the flywheel not only bears extremely high bending and compression stress, but also rubs against the clutch friction plate for thousands of times.

HT250 material has excellent wear resistance and fatigue resistance, even under long-term high load and high temperature conditions, it can maintain extremely low wear rate and extremely small thermal deformation.

With precise numerical control machining and strict dynamic balance test, the runout of the flywheel end face is ensured to reach micron-level standard, which completely eliminates the jitter phenomenon when the vehicle starts or shifts gears, and makes the power transmission more smooth and accurate.

Excellent performance is inseparable from strict manufacturing process.

High-quality HT250 flywheel castings are ensured to have a stable tensile strength of more than 250MPa by accurately controlling chemical components such as carbon and silicon from the beginning of raw material melting. In the casting process, the scientific inoculation treatment and aging annealing process completely eliminated the residual stress inside the casting and prevented the flywheel from being deformed in the later processing or use.

Before leaving the factory, each flywheel must undergo ultrasonic flaw detection, hardness detection and strict dynamic balance check to ensure that its internal structure is compact and defect-free, and its external dimensions are accurate and unbiased.

Choosing a high-quality HT250 flywheel is an ultimate pursuit of driving quality and a solid guarantee for driving safety.

It perfectly achieves the balance of strong power, smooth control and long service life with highly competitive comprehensive cost. In this era of pursuing both efficiency and comfort, the HT250 flywheel, which is precision-cast, is silently guarding every smooth start and safe arrival with its hard-core strength of "stability, quietness and strength".