:| ROSS Tuffbond |: - ROSS Racing, ROSS Balancers, Heavy Duty Harmonic Balancers, Automotive Parts, Bus and Truck Components |:

| Automotive | Transport |

WELCOME TO ROSS TUFFBOND
MANUFACTURER OF QUALITY ENGINE PARTS

ROSS TUFFBOND has been servicing the automotive, transport and marine industries for almost 25 years. Formally known as 'ROSS Balancers', 'ROSS Racing' and before that 'Rosco Marine Services'. ROSS TUFFBOND now incorporates Automotive / Transport / Marine & Racing products and as such, we prefer to be known just as ROSS.

We now produce high quality billet pulleys & flywheels for use in some of the most extreme conditions. Revolutionery design - machined smooth, clean and oiled, delivered to you. While some company's may become rigid and insensitive towards the needs of their customers, ROSS is a company evolving with its customer base. Highly flexible, we aim at delivering a high level of service to our customers. On time, on spec and on the money. We see ourselves as specialists who take pride in manufacturing high quality components and as we expand our range and customer base, we hope you'll join us on our journey.

ROSS TUFFBOND - Revolutionary Design.

TECHNICAL INFORMATION ON ENGINE VIBRATION - Typical Engine Performances


Fig 1: 4th Order Citations - 8 Cyclinders The waveform shown in Figure 1 is a 4th order torsional vibration (four spikes per rotation). The frequency of the vibration changes with engine RPM. For example, at 4600 RPM the frequency of the 4th order vibration is 307 cycles per second, or “Hertz” (HZ), the units of cycles per second.	Fig 2: 3rd Order Citations - 6 Cyclinders An inline 6 cylinder engine has 3rd order torsional vibration - 3 spikes per revolution and of a greater amplitude than in the V8 engine.s	Fig 3: 2nd Order Citations - 4 Cyclinders 4 cylinder engines produce even greater amplitudes of vibrations than an inline 6 or V8 as they have 2 pulses per revolution - this type of engine will benefit greatly by fitting a harmonic balancer that can absorb damaging torsional vibration.

Transportation Replacement Parts:
Over 15 years of suppling replacement parts to the
State Transit Authority’s bus fleet - utilising ROSS’s skills
and expertise. > Read more

Automotive Replacement Parts:
Since 1981, ROSS has been supplying quality replacement engine parts for High - Performance vehicles.
> Read more

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