AT308994 is a torsional damper replacement spare part for JD agricultural farm machinery equipment.

Applicable Models: Suitable for JD 624K and other compatible models.

Function: The primary function of the torsional damper is to reduce torsional vibrations generated by the engine crankshaft during operation. During engine operation, periodic combustion cycles within the cylinders generate torque pulses that induce torsional vibrations in the crankshaft. The AT308994 absorbs and dissipates this vibrational energy through internal damping mechanisms, such as rubber or elastomer materials. This reduces vibration amplitude, protecting the crankshaft and associated components while enhancing engine smoothness, reliability, and extending service life.

Structural Features: Typically composed of a hub, annular body, and damping elements. The hub connects to the crankshaft, while the annular body balances and transmits torque. Damping elements, usually rubber or elastomer materials, absorb and dissipate vibration energy by deforming when torsional vibrations occur in the crankshaft.