Typically, select this option if using English units. Typically, select this option if using metric units. Select to calculate the gear ratio according to number of teeth. Select to calculate number of teeth of the second gear according to gear ratio. To display the More Options area, click More in the right lower corner of the Design Tab. If not available, calculate total unit correction based on other parameters.Ĭlick to display the Preview dialog box with a schematic image of spur gears dimensions.ĭisplays additional options for spur gear design. Not available if you select Total Unit Correction option in the Design Guide drop-down menu. Specifies the sum of the gear unit corrections. Specifies the method to use for calculation of the teeth correction. to change direction you must click Flip next to the edit field. You can insert only positive values from 0 to 55. Helix angle is the angle that a helical gear tooth makes with the gear axis at the pitch circle. In involute teeth, the pressure angle is often described as the angle between the line of action and the line tangent to the pitch circled. Pressure angle is the angle between a tooth profile and a radial line at its pitch point.
This option is disabled when you select Center Distance in the Design Guide drop-down menu - you want to calculate center distance based on other input parameters. Specifies the shortest distance between centers of gears. Note: This option is enabled if you select Diametral Pitch in the Size Type area of More options.
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