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Harmonic Balancers
Atomic High-Mass dampeners are designed to
absorb torsional vibrations of the
crankshaft/rotating mass of the engine, which
increases the life of engine components such as
crankshafts, bearings and drive systems. They also allow for quicker engine acceleration,
deceleration and contribute to smoother running
of the engine.
The term “harmonic balancer” has been adopted by
the automotive industry to describe vibration
dampeners that attach to the snout of
crankshafts; this term is misleading and
inaccurate. They do not “balance” any engine
harmonics - they merely follow Newtons Third Law
of Motion and react to the torsional vibration
created by the motion of conrods/pistons acting
upon the crankshaft. This oscillation is
partially taken up by the movement of the outer
ring of the dampener moving in an equal and
opposite reaction to this torsional movement.
The more efficient the operation of the
dampener, the more damaging torsional vibration
is absorbed.
Careful attention has been paid to the mass of
the dampening ring so as to absorb the maximum
torsional vibrations, whilst simultaneously
reducing rotating inertia to the lowest possible
level.
Why Atomic balancers are better
The construction of a standard type dampener is
usually an outer cast iron ring press fitted to
a keyed hub, with a rubber sleeve wedged between
the two pieces. The unit is then lightly
press-fitted to the crankshaft and secured in
place with a retaining bolt/washer assembly.
Atomic vibration dampeners differ markedly from
the standard style of dampener in the following
ways:
• CNC machined outer ring
with greater rotating mass than standard;
absorbs more damaging torsional vibrations
• CNC machined inner hub for a precision fit
• Billet alloy steel outer ring
• Lighter overall balancer mass by an average of
300 grams provides quicker engine acceleration
and deceleration
• Supplied with all OE pulley drives - no need
to buy additional pulleys, spacers, etc
• ANDRA and SFI (USA) approved design
• Flanged outer ring to eliminate dampener ring
“walk” off the front or rear of the hub
• Precision balanced
• Lifetime warranty on bonding
• Exclusive TuffBond elastometric bonding
process of inner and outer pieces for a perfect
fit, concentric operation and improved
transmission of torsional vibration
PLEASE NOTE: It is mandatory to fit an
ANRDA approved harmonic balancer if your vehicle
runs quicker than 10.99 seconds in the quarter
mile. This is due to the high risk of explosion
of the factory fitted cast iron balancer, which
is subjected to extreme centrifugical forces
generated by high RPM’s.
#306100 - Atomic Hi-Mass Balancer
Suit Ford DOHC 6 Cyl
#354100 - Atomic Hi-Mass Balancer
Suit Nissan SR20
#356100 - Atomic Hi-Mass Balancer
Suit Nissan RB25 (all models)
#356101 - Atomic Hi-Mass Balancer
Suit Nissan RB26 (R32 models)
#356102 - Atomic Hi-Mass Balancer
Suit Nissan RB26 (R33-34 models)
#356103 - Atomic Hi-Mass Balancer
Suit Nissan Hybrid RB30 with RB25 head (R32
models)
#356104 - Atomic Hi-Mass Balancer
Suit Nissan Hybrid RB30 with RB26 head
(R33-34 models)
#356105 - Atomic Hi-Mass Balancer
Suit Nissan RB30 (Australian engine)
#554100 - Atomic Hi-Mass Balancer
Suit Subaru EJ20-25
#606100 - Atomic Hi-Mass Balancer
Suit Toyota 1 and 2JZ
Custom Harmonic Balancers
We can make a custom balancer for almost every
application (even supercharged engines) so if
you are suffering from torsional vibration
issues give us a call on 02 8665 5889... we are
here to help!
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