| TChart | TChart is the central component in TeeChart library. | 
| TDBChart | TDBChart derives from TChart / TCustomChart and inherits all TChart functionality. When a Chart Series is connected to a TDBChart component, TDBChart looks in the Series DataSource property. | 
| TSeriesDataSet | This component enables the connection of a DBGrid to a TChart/TDBChart's single Series data. The TSeriesDataset component may be activated to connect to any TeeChart Series on a Form. Use a TDatasource component to connect to the TSeriesDataset in the same way as if it were a TTable or TQuery. A DBGrid may then be connected to the TDatasource to access the Series data. | 
| TChartDataSet | This component enables the connection of a DBGrid to a TChart/TDBChart's data. The TChartDataset component may be activated to connect to a TeeChart and connect the data of all its Series to be used by the DBGrid. Use a TDatasource component to connect to the TChartDataset in the same way as if it were a TTable or TQuery. A DBGrid may then be connected to the TDatasource to access the Chart data. | 
| TDBCrossTabSource | The DBCrossTabSource component is a non-visual component to automatically create charts with multiple series from database data. | 
| TButtonColor | This Button control is internally used at Chart Editor dialogs.Is like a normal TButton control, but includes a property to "link" this button to a Color property. | 
| TButtonPen | This component is internally used at Chart Editor dialogs.Is like a normal VCL TButton control, but includes a property to "link" this button to a TChartPen property. | 
| TButtonGradient | Button to provide Editor for the associated Gradient. | 
| TDraw3D | − TCustomTeePanelExtended
 | 
| TComboFlat | A derived ComboBox class that displays the combo border when passing the mouse over it. | 
| TImageFiltered | − TImage
 | 
以上、ヘルプより。という訳でヘルプは英語です。よく分かりませんが基本となるTeeChartとそのシリーズ、それと、通常のコンポーネントを拡張したシリーズ、という感じの様子です。基本的には、TeeChart (TChart)が主体という感じでしょうか?