Powerbond Harmonic Balancers
A harmonic balancer (also called crank pulley damper, crankshaft damper, torsional damper, or vibration damper) is a car parts that fits to the crankshaft of an engine to reduce torsional vibration.
When the cylinders fire, torque is imparted to the crankshaft via the connecting rod causing energy to be dispersed through the engine. The front of the crankshaft takes the brunt of this power, so it often moves before the back of the crankshaft. The crankshaft deflects under this applied torque and harmonic vibrations are induced when the torque is released.
At certain engine rpms the torque is in synch with the vibrations in the crankshaft, which results in a phenomenon called resonance. This resonance can cause stress resulting in crankshaft failure.
To reduce this this vibration the harmonic balancer is attached to the front part of the crankshaft and consists of three parts. The inner part is bolted directly onto the crankshaft itself. The centre part is a dampening material (usually a rubber ring) which is used to dampen the crankshaft vibrations, and the outer part has the timing marks and pulley cuts in it for the belts. When the crankshaft tries to twist the rubber absorbs the energy preventing the crankshaft from breaking.
Buy harmonic balancers in Australia and the USA here
Australia Powerbond dampers
302W EFI Powerbond Street Harmonic Balancer
 |
AU $120.00 (0 Bid) End Date: Friday Mar-12-2010 20:59:14 PST Bid now | Add to watch list |
HOLDEN CHEV 454 POWERBOND RACE SERIES BALANCER
 |
AU $245.95 End Date: Saturday Mar-13-2010 5:51:38 PST Buy It Now for only: AU $245.95 Buy it now | Add to watch list |
HOLDEN CHEV 400 S/BLOCK POWERBOND RACE SERIES BALANCER
 |
AU $234.95 End Date: Saturday Mar-13-2010 9:39:13 PST Buy It Now for only: AU $234.95 Buy it now | Add to watch list |
UNDERDRIVE KIT, FORD BA 6cyl POWERBOND BALANCER & BELT
 |
AU $277.00 End Date: Saturday Mar-13-2010 19:15:36 PST Buy It Now for only: AU $277.00 Buy it now | Add to watch list |
UNDERDRIVE KIT, HOLDEN 6.0L L98, LS3 POWERBOND BALANCER
 |
AU $297.00 End Date: Saturday Mar-13-2010 19:16:02 PST Buy It Now for only: AU $297.00 Buy it now | Add to watch list |
UNDERDRIVE KIT, FORD BA V8 POWERBOND BALANCER
 |
AU $233.00 End Date: Saturday Mar-13-2010 19:18:53 PST Buy It Now for only: AU $233.00 Buy it now | Add to watch list |
UNDERDRIVE KIT, HOLDEN LS1, LS2 POWERBOND BALANCER
 |
AU $319.00 End Date: Saturday Mar-13-2010 19:20:46 PST Buy It Now for only: AU $319.00 Buy it now | Add to watch list |
UNDERDRIVE KIT, HOLDEN 3.6L V6 POWERBOND BALANCER &BELT
 |
AU $250.00 End Date: Saturday Mar-13-2010 19:20:48 PST Buy It Now for only: AU $250.00 Buy it now | Add to watch list |
HOLDEN COMMODORE 3.8L V6 POWERBOND HARMONIC BALANCER
 |
AU $235.00 End Date: Saturday Mar-13-2010 23:02:02 PST Buy It Now for only: AU $235.00 Buy it now | Add to watch list |
HOLDEN V8 253 308 304 5.0L POWERBOND BALANCER
 |
AU $128.00 End Date: Sunday Mar-14-2010 22:36:15 PDT Buy It Now for only: AU $128.00 Buy it now | Add to watch list |
HOLDEN CHEV 283-350 POWERBOND RACE SERIES BALANCER
 |
AU $209.95 End Date: Tuesday Mar-16-2010 12:10:01 PDT Buy It Now for only: AU $209.95 Buy it now | Add to watch list |
UNDERDRIVE KIT, CHRYSLER 300C POWERBOND BALANCER
 |
AU $319.00 End Date: Tuesday Mar-16-2010 20:24:26 PDT Buy It Now for only: AU $319.00 Buy it now | Add to watch list |
NISSAN CA18 20% UNDERDRIVEN POWERBOND RACE BALANCER
 |
AU $235.00 (0 Bid) End Date: Wednesday Mar-17-2010 13:13:47 PDT Buy It Now for only: AU $245.00 Bid now | Buy it now | Add to watch list |
holden 308 355 383 powerbond balancer race drag car
 |
AU $150.00 (0 Bid) End Date: Wednesday Mar-17-2010 20:40:43 PDT Bid now | Add to watch list |
VN VP VR VS VT 5.0L V8 Powerbond Street Perf. Balancer
 |
AU $164.29 End Date: Thursday Mar-18-2010 2:23:42 PDT Buy It Now for only: AU $164.29 Buy it now | Add to watch list |
USA Powerbond dampers
Ford 302 351C Powerbond Street Harmonic Balancer
 |
US $136.76 End Date: Saturday Mar-13-2010 2:09:19 PST Buy It Now for only: US $136.76 Buy it now | Add to watch list |
HOLDEN CHEV 400 S/BLOCK POWERBOND RACE SERIES BALANCER
|
US $215.80 End Date: Saturday Mar-13-2010 9:39:13 PST Buy It Now for only: US $215.80 Buy it now | Add to watch list |
Ford 351 1986-97 Powerbond Harmonic balancer damper
 |
US $53.16 End Date: Saturday Mar-13-2010 20:37:57 PST Buy It Now for only: US $53.16 Buy it now | Add to watch list |
Pontiac 350 400 455 Powerbond Harmonic Balancer
 |
US $65.51 End Date: Monday Mar-15-2010 3:20:43 PDT Buy It Now for only: US $65.51 Buy it now | Add to watch list |
Ford 302 1970-80 Powerbond Harmonic balancer damper
 |
US $64.56 End Date: Monday Mar-15-2010 3:20:45 PDT Buy It Now for only: US $64.56 Buy it now | Add to watch list |
Chrysler 360 Powerbond Street balancer PB1108-ST
 |
US $115.86 End Date: Monday Mar-15-2010 3:21:47 PDT Buy It Now for only: US $115.86 Buy it now | Add to watch list |
Pontiac GTO LS1 25%UD Powerbond SFI Harmonic Balancer
 |
US $189.01 End Date: Monday Mar-15-2010 3:21:53 PDT Buy It Now for only: US $189.01 Buy it now | Add to watch list |
Chrysler Mopar 360 Powerbond claimer balancer damper
 |
US $66.46 End Date: Tuesday Mar-16-2010 3:11:49 PDT Buy It Now for only: US $66.46 Buy it now | Add to watch list |
Chevy Small Block 400 Powerbond Claimer balancer damper
 |
US $51.26 End Date: Tuesday Mar-16-2010 3:11:50 PDT Buy It Now for only: US $51.26 Buy it now | Add to watch list |
HOLDEN CHEV 283-350 POWERBOND RACE SERIES BALANCER
|
US $192.84 End Date: Tuesday Mar-16-2010 12:10:01 PDT Buy It Now for only: US $192.84 Buy it now | Add to watch list |
Ford 351 1969-74 Powerbond Street Harmonic Balancer
 |
US $122.51 End Date: Wednesday Mar-17-2010 3:12:20 PDT Buy It Now for only: US $122.51 Buy it now | Add to watch list |
Chevy 250 4.1 L6 1973 1974 Powerbond Harmonic Balancer
 |
US $65.51 End Date: Thursday Mar-18-2010 3:10:57 PDT Buy It Now for only: US $65.51 Buy it now | Add to watch list |
Ford 351C 400 Powerbond SFI balancer damper PB1082SS
 |
US $194.71 End Date: Thursday Mar-18-2010 3:11:44 PDT Buy It Now for only: US $194.71 Buy it now | Add to watch list |
Ford 302 351W 4 blt Powerbond SFI Harmonic Balancer
 |
US $176.66 End Date: Friday Mar-19-2010 11:22:18 PDT Buy It Now for only: US $176.66 Buy it now | Add to watch list |
Ford Big Block 351C Powerbond Claimer balancer PB1082N
 |
US $68.36 End Date: Friday Mar-19-2010 14:26:26 PDT Buy It Now for only: US $68.36 Buy it now | Add to watch list |
Chevy 396 454 Powerbond SFI Harmonic Balancer
 |
US $170.96 End Date: Saturday Mar-20-2010 3:16:43 PDT Buy It Now for only: US $170.96 Buy it now | Add to watch list |
Chevy 400 Powerbond Street Harmonic balancer damper
 |
US $105.41 End Date: Saturday Mar-20-2010 3:17:38 PDT Buy It Now for only: US $105.41 Buy it now | Add to watch list |
Chevy 454 Big Blk 8″ Powerbond claimer balancer damper
 |
US $71.21 End Date: Saturday Mar-20-2010 3:17:43 PDT Buy It Now for only: US $71.21 Buy it now | Add to watch list |
Chevy 350 6 1/4 Street Perf Powerbond balancer damper
 |
US $89.26 End Date: Saturday Mar-20-2010 3:17:43 PDT Buy It Now for only: US $89.26 Buy it now | Add to watch list |
Chrysler Dodge 318 340 SFI Powerbond balancer damper
 |
US $189.96 End Date: Saturday Mar-20-2010 3:17:47 PDT Buy It Now for only: US $189.96 Buy it now | Add to watch list |
Ford 5.4L 7.05″ Powerbond Street balancer PB1116ST
 |
US $130.11 End Date: Sunday Mar-21-2010 3:12:28 PDT Buy It Now for only: US $130.11 Buy it now | Add to watch list |
Chevy Small Block 8″ Powerbond Claimer balancer damper
 |
US $51.26 End Date: Sunday Mar-21-2010 3:12:31 PDT Buy It Now for only: US $51.26 Buy it now | Add to watch list |
Ford 429 460 SFI balancer damper Powerbond PB1210SS
 |
US $194.71 End Date: Sunday Mar-21-2010 3:12:34 PDT Buy It Now for only: US $194.71 Buy it now | Add to watch list |
Ford 302 5.0 Powerbond Street Balancer Damper PB1070ST
 |
US $122.51 End Date: Sunday Mar-21-2010 3:12:36 PDT Buy It Now for only: US $122.51 Buy it now | Add to watch list |
Chevy Small Block 6″ Powerbond SFI Harmonic Balancer
 |
US $152.91 End Date: Sunday Mar-21-2010 3:12:40 PDT Buy It Now for only: US $152.91 Buy it now | Add to watch list |
Chevy 454 Light Weight Powerbond Street Balancer Damper
 |
US $104.46 End Date: Sunday Mar-21-2010 3:12:40 PDT Buy It Now for only: US $104.46 Buy it now | Add to watch list |
Ford FE 390 427 428 Powerbond Balancer Damper PB1111ST
 |
US $115.86 End Date: Sunday Mar-21-2010 3:12:44 PDT Buy It Now for only: US $115.86 Buy it now | Add to watch list |
Ford SFI balancer damper Powerbond 289 302 3-bolt
 |
US $189.96 End Date: Sunday Mar-21-2010 3:12:44 PDT Buy It Now for only: US $189.96 Buy it now | Add to watch list |
Chevy LT1 Powerbond Street Balancer Damper PB1481ST
 |
US $103.51 End Date: Sunday Mar-21-2010 3:12:45 PDT Buy It Now for only: US $103.51 Buy it now | Add to watch list |
Chevy 283 350 8″ Powerbond Street damper PB1046ST
 |
US $105.41 End Date: Sunday Mar-21-2010 3:12:48 PDT Buy It Now for only: US $105.41 Buy it now | Add to watch list |
Ford 302 351W 28 0z. Powerbond Street balancer Damper
 |
US $122.51 End Date: Sunday Mar-21-2010 3:12:51 PDT Buy It Now for only: US $122.51 Buy it now | Add to watch list |
FORD CLEVELAND 302 351 POWERBOND RACE SERIES BALANCER
 |
US $229.53 End Date: Sunday Mar-21-2010 3:27:16 PDT Buy It Now for only: US $229.53 Buy it now | Add to watch list |
Ford 302 Powerbond Street Harmonic balancer damper
 |
US $115.86 End Date: Tuesday Mar-23-2010 3:15:17 PDT Buy It Now for only: US $115.86 Buy it now | Add to watch list |
Dodge Mopar 440 SFI balancer damper Powerbond PB1112SS
 |
US $183.31 End Date: Tuesday Mar-23-2010 16:50:18 PDT Buy It Now for only: US $183.31 Buy it now | Add to watch list |
Ford 351W EFI 4 bolt Powerbond Street Harmonic Balancer
 |
US $115.86 End Date: Wednesday Mar-24-2010 3:07:42 PDT Buy It Now for only: US $115.86 Buy it now | Add to watch list |
Ford 351 Powerbond claimer balancer 28oz PB1009-N
 |
US $68.36 End Date: Wednesday Mar-24-2010 3:08:35 PDT Buy It Now for only: US $68.36 Buy it now | Add to watch list |
Chrysler 392 Hemi Powerbond SFI Damper Balancer
 |
US $189.96 End Date: Wednesday Mar-24-2010 3:08:37 PDT Buy It Now for only: US $189.96 Buy it now | Add to watch list |
Ford 140 L4 2.3L Tempo Powerbond Harmonic Balancer
 |
US $59.81 End Date: Wednesday Mar-24-2010 3:08:39 PDT Buy It Now for only: US $59.81 Buy it now | Add to watch list |
Chevy truck Blazer SFI balancer 350 305 Powerbond
 |
US $158.61 End Date: Thursday Mar-25-2010 3:10:54 PDT Buy It Now for only: US $158.61 Buy it now | Add to watch list |
Ford FE 360 390 Powerbond SFI Harmonic Balancer
 |
US $188.06 End Date: Thursday Mar-25-2010 3:11:06 PDT Buy It Now for only: US $188.06 Buy it now | Add to watch list |
Corvette balancer damper 350 5.7L 1984-91 Powerbond SFI
 |
US $158.61 End Date: Thursday Mar-25-2010 3:12:05 PDT Buy It Now for only: US $158.61 Buy it now | Add to watch list |
Chevy Big Block 427 Powerbond Claimer balancer damper
 |
US $93.06 End Date: Thursday Mar-25-2010 3:12:05 PDT Buy It Now for only: US $93.06 Buy it now | Add to watch list |
Ford 460 Powerbond Claimer Balancer damper PB1210N
 |
US $66.46 End Date: Friday Mar-26-2010 3:16:11 PDT Buy It Now for only: US $66.46 Buy it now | Add to watch list |
Chevy 7″ 283 350 Powerbond Street Harmonic Balancer
 |
US $92.11 End Date: Friday Mar-26-2010 3:16:41 PDT Buy It Now for only: US $92.11 Buy it now | Add to watch list |
Ford 302 EFI Powerbond SFI 50 oz 4-bolt Balancer damper
 |
US $189.96 End Date: Monday Mar-29-2010 3:22:03 PDT Buy It Now for only: US $189.96 Buy it now | Add to watch list |
Chevy LS6 LS2 Powerbond SFI Balancer Damper PB1117SS
 |
US $198.51 End Date: Tuesday Mar-30-2010 3:16:38 PDT Buy It Now for only: US $198.51 Buy it now | Add to watch list |
Chevy 305 350 82-93 Powerbond balancer damper PB1200N
 |
US $45.56 End Date: Tuesday Mar-30-2010 20:32:57 PDT Buy It Now for only: US $45.56 Buy it now | Add to watch list |
Chevy 283 307 6″ Lt wt Powerbond SFI Harmonic Balancer
 |
US $164.31 End Date: Friday Apr-02-2010 3:15:38 PDT Buy It Now for only: US $164.31 Buy it now | Add to watch list |
Ford 5.4L Modular 10%UD Powerbond SFI Harmonic Balancer
 |
US $185.21 End Date: Friday Apr-02-2010 3:16:10 PDT Buy It Now for only: US $185.21 Buy it now | Add to watch list |
Nissan 200SX SR20 25%UD Powerbond SFI Harmonic Balancer
 |
US $189.01 End Date: Friday Apr-02-2010 3:16:27 PDT Buy It Now for only: US $189.01 Buy it now | Add to watch list |
Chevy 400 Small Blk 8″ Powerbond SFI Harmonic Balancer
 |
US $189.96 End Date: Friday Apr-02-2010 3:16:34 PDT Buy It Now for only: US $189.96 Buy it now | Add to watch list |
Subaru WRX EJ20T 25% UD Powerbond SFI Harmonic Balancer
 |
US $194.71 End Date: Friday Apr-02-2010 3:16:45 PDT Buy It Now for only: US $194.71 Buy it now | Add to watch list |
Ford 302 351W Powerbond SFI Harmonic Balancer PB1009-SS
 |
US $189.96 End Date: Friday Apr-02-2010 3:16:48 PDT Buy It Now for only: US $189.96 Buy it now | Add to watch list |
Dodge 440 Powerbond Street Harmonic Balancer PB1112-ST
 |
US $152.91 End Date: Friday Apr-02-2010 3:16:49 PDT Buy It Now for only: US $152.91 Buy it now | Add to watch list |
Chrysler 318 340 Powerbond Street Harmonic Balancer
 |
US $122.51 End Date: Friday Apr-02-2010 3:16:52 PDT Buy It Now for only: US $122.51 Buy it now | Add to watch list |
Ford 302 EFI Powerbond Street Harmonic Balancer
 |
US $132.96 End Date: Friday Apr-02-2010 3:16:57 PDT Buy It Now for only: US $132.96 Buy it now | Add to watch list |
Chevy 283 350 7″ Powerbond SFI Harmonic Balancer
 |
US $164.31 End Date: Friday Apr-02-2010 3:17:38 PDT Buy It Now for only: US $164.31 Buy it now | Add to watch list |
Ford 351W 6″ 3 Bolt LT Powerbond SFI Harmonic Balancer
 |
US $164.31 End Date: Friday Apr-02-2010 3:17:40 PDT Buy It Now for only: US $164.31 Buy it now | Add to watch list |
Ford 351W 6″ lt wt Powerbond Street Harmonic Balancer
 |
US $91.16 End Date: Friday Apr-02-2010 3:17:48 PDT Buy It Now for only: US $91.16 Buy it now | Add to watch list |
Pontiac GTO 5.7L LS1 Powerbond Street Harmonic Balancer
 |
US $113.96 End Date: Friday Apr-02-2010 3:17:55 PDT Buy It Now for only: US $113.96 Buy it now | Add to watch list |
Powerbond harmonic balancers
The POWERBOND Street Harmonic Balancer Series brings bonded balancer technology within the budget of every performance street engine builder from mild to wild. They also make a great heavy duty standard replacement balancer.
POWERBOND Street Balancers are also perfect for limited spec race classes such as late model stock that require an OEM style balancer.
The bonded dampening rubber in every POWERBOND Street Series balancer eliminates spinning and component separation giving reliable performance in engines used to 6500rpm.
POWERBOND Street Series combine new high strength SG (Nodular) Iron balancer centres with new inertia rings, bonded then balanced to extremely tight tolerances.
POWERBOND Street balancers feature easy to read permanently etched timing marks on the outer ring.
SFI Race Powerbond Balancers
The POWERBOND Race Series brings the advantages of bonded balancers to high revving race and street/race applications where an SFI approved balancer is required.
Every Race Series POWERBOND balancer features a precision CNC machined AUSI 1045 steel centre bonded to an equally strong steel inertia ring. Advanced design means that Race Series balancers are very light for an all steel product. In most cases they are only marginally heavier than the original cast iron balancer and generally much lighter than other all steel balancers on the market. The steel inertia ring of the Race Series models is positively protected against forward and backward movement and has the assurance of bonded rubber to eliminate spinning.
Every model has easy to read SERPENTINE Late model engines with Serpentine belts driven off the damper ring create much higher loads on both the inertia ring and dampening material. The strength and durability of POWERBOND is even more critical on Serpentine engines particularly in performance or race applications.
POWERBOND Serpentine dampers are available for popular late model applications including Chev LT1, LS1 and LS6 and the Ford 4.6 and 5.4 litre Modular series. To give engine builders maximum flexibility, Street and SFI Race versions are available.
In addition Race versions are offered in standard diameter, 10% underdrive, 25% underdrive and 8 rib drive for supercharger conversions balanced to extremely tight tolerances.
POWERBOND Street balancers feature easy to read permanently etched timing marks on the outer ring. Every model has easy to read computer etched timing marks.
All POWERBOND Race series balancers meet SFI specification 18.1.
Powerbond Balancer Dampening Material
All POWERBOND dampers use a rubber formula that has been developed over 23 years in the damper business. The formula is exceptionally resistant to ageing and gives excellent control of elasticity in the pressure bonding process employed.
Pressure Bonding – The most time consuming and secure method of damper assembly used by prestige and performance carmakers such as Mercedes Benz, BMW and Porsche. Damper components are chemically primed and assembled in highly accurate pre-heated steel press dies. Specifically formulated rubber is injected into purpose built 100 ton bonding presses and cured in the mould until optimum strength is achieved. This method gives unrivalled rubber to metal bonding strength, resistance to ring dislocation and control of rubber duro or elasticity. All POWERBOND dampers are assembled using state of the art pressure bonding methods.
Metallurgy
Street Powerbond Harmonic Balancers
OEM Style dampers are usually manufactured from cast iron. Not all cast iron is created equal and to save cost some aftermarket balancers use regular “grey” cast iron which has limited strength and is prone to cracking.
All POWERBOND STREET series dampers are manufactured exclusively from high strength S.G. iron (also known as nodular iron) which is the same material used in most crankshafts. This high-grade iron has much greater resistance to cracking than the cheaper grey iron.
Race Powerbond Harmonic Balancers
POWERBOND RACE dampers are manufactured from solid billet steel bar stock to AUS 1045 specification. Steel is stronger and more wear resistant than aluminium alloy used in some products. Wear resistance is critical in the oil seal and crank nose areas. Whilst alloy is a lighter base material careful design of the damper can minimize the weight variance when using the stronger steel base material.
You can view the Powerbond harmonic balancer application guide here.
