Knowledge Advisor - catia

select L2The L2 dimension is highlighted in the geometry area. Its initial value is set to 1mm andyou can note it is constrained by a formula. Repeat the same operation with L3. L2 andL3 play a symmetric role in the sketch definition.select DThe D dimension is highlighted in the geometry area. Its value is set to 5 mm. D definesthe bearing outside radius (or external radius of the outer ring) . Repeat the sameoperation with D1 which defines the internal radius of the outer ring.CentreAxe1 defines the groove center.3.Use the same method for the other parameters.The RelationsTake a look at the formulas and rules added to the document. The ball radius is constrained by the grooveradius which is itself calculated from Sketch.1 parameters. The rules allow you to:define geometric parameters with respect to othersensure the sketch.1 and sketch.2 consistencyand define the ball number.All these relations define the bearing geometry. At this stage of the exercise, it is not recommended tomodify them.The Step-by-Step ProcedureA design table is created from a pre-existing file. The data set contained in this pre-existing fileis quite similar to the data set which identifies a bearing in a catalogue. The design table whichis created defines a number of configurations. Applying a new configuration results in a bearingmodification.1.2.3.4.5.Open the KwrBallBearing0.CATPart document.Click the Design Table icon in the standard toolbar.Check the "Create a design table from a pre-existing file" option. Click OK.Select the KwrBallBearing.xls file and associate automatically the design table columnsand the document parameters.In the "Design table" dialog box, select the configuration 8.Your ball bearing has changed. It is now a silver bearing. You can tell the difference whenyou look at the geometry area. The bearing width is also modified. Click OK to exit theDesign Table dialog box. Keep your document open and proceed to the next task.A Cost parameter is defined as a function of the ball number. Creating a check provides youwith a means to be warned whenever the bearing cost is too high.