All internal combustion engines display crankshaft torsional vibration. As the piston rises and falls so does cylinder pressure. The changing pressure results in forces being transmitted along the connecting rod and applied to the crankshaft journal. The TCI Rattler counteracts those vibrations by using internal rollers that automatically offset twisting forces that cause vibration (see Fig. 1). The Rattler is an absorber that eliminates the root cause of torsional vibration. It is effective for the entire RPM range and extends crankshaft and bearing life, as well as increases valve train stability and life. The design does not utilize viscous fluids and requires virtually no maintenance. And the unit’s timing marks are etched onto the body and cannot move relative to crankshaft centerline. The Rattler is also lighter in weight than most units of the same size and material construction. Its design features steel rollers (centrifugal pendulums) that fit loosely into a specific number of holes. By using patented, exact mathematical relationship, the rollers will roll forward during compression stroke and backward during power stroke to keep engine speed variation and vibration to a minimum. The rollers actually store and release energy back into the crankshaft rather than converting it to heat energy as dampers do. Rattlers are not frequency specific but are based on the number of cylinders used in the engine or events per revolution so they are practical for street use, as well as oval track and drag strip use.CNC-machined to exacting tolerances
Engine Harmonic Balancer
Documents
Attributes
Pulley Pattern: | 3-Bolt Std. |
Balance Type: | Internal |
Weight: | 8 Lbs. |
Overall Diameter: | 6.29 IN |
Overall Depth: | 2.845 IN |
Body Thickness: | 1.25 IN |
Body to Hub Spacing: | 1.515 IN |
Crank Hub Outer Diameter: | 1.8685 IN |
Crank Hub Inner Diameter: | 1.3745 IN |
SFI 18.1 Certified?: | Yes |
Title: | Pontiac V8 Internal Balance Rattler Harmonic Balancer. |
Package Information
Package Length:4 INPackage Width:9 INPackage Height:10 INWeight:8 LBOrderable Status:YesQuantity:1Package UOM:Smallest Pack (Consumer Level)Package Level GTIN:00788120022149Package Bar Code:788120022149Weight Variance:0.000000000Stacking Factor:0Inner Quantity:1 Each
Extended Information
Core Return Days to Expiry:0Country of Origin (Primary):USEmission Code:Legal USHarmonized Tariff Code (HTS):8708401110Harmonized Tariff Code (Schedule B):8708401110Life Cycle Status Code:DiscontinuedLife Cycle Status Description:DiscontinuedMSDS Required Flag:NoMSDS Sheet Number:N/ANAFTA Preference Criterion Code:Criteria BNational Popularity Code:Next 20% of Product Group Sales Value National Popularity Description:Next 20% of Product Group Sales ValueOEM’s Part Number:NOriginal Equipment Manufacturer:NOriginal Supplier:N/AOriginal Supplier Part Number:N/APart Number Superseded To:N/ARefurbished Part:NoRemanufactured Part:NoStock Status:Shelf StockTaxable:YesWarranty Time:12Warranty Time UOM:Month