Engine harmonics
The harmonic damper, which is also known as crankshaft pulley, harmonic balancer, crankshaft damper, torsional damper, or vibration damper, is an important but often misunderstood component of the engine. It does not balance the rotating mass of the engine, but instead, it controls the engine harmonics created by torsional vibration, which is the twisting on an object due to an applied torque. Although the steel crankshaft may appear rigid, it bends, flexes, and twists when sufficient force is created, such as each time the crankshaft rotates and a cylinder fires. Consider the impact of the piston coming to a dead stop twice per revolution, at the top and bottom of the cylinder. These torsional vibrations create resonance, and the harmonic damper helps to dampen them. Therefore, it is a critical component that ensures the longevity and performance of the engine.
ROSS Svängningsdämpare
Ross Tuffbond Metal Jacket
The Metal Jacket utilises the proprietary Ross Tuffbond elastomeric bonding process. This unit is designed with all of the original accessory pulley’s being utilised in the standard positions and sizing ratios. In some instances, the power steering pulley is slightly under driven to improve performance at high RPM, whilst not affecting low-speed drivability.
Metal Jacket dampers are designed for high-performance street and occasional track application.
Ross Tuffbond Race Series
The Race Series takes the proprietary Ross Tuffbond technology to another level.
The Race Series has a larger damper mass, lightweight pulley packs with under driven ratios and a separate damper hub. This high-level modular design allows for infinite variations for an array of applications. With the heart of the Ross Race Series having been developed over many years in conjunction with some of the leaders of the high-performance racing industry in their pursuit for excellence.
Ross Tuffbond Gold Series
With the number of genuine 1000HP race vehicles growing all the time, Ross Performance Parts is staying ahead of the game.
The Gold Series is based on the design principles of the Race Series, however, by using a dissimilar material (compared to your crank) for our damper hub, a Ross Performance Parts Gold Series damper will eliminate microscopic migration of material between the surfaces of the crank nose and damper hub. Our technology is pivotal to the prevention of galling and wear of the crankshaft – maintaining a secure press fit over the lifetime of the damper.
