Creating a Worm Gear

To create a worm gear:

·                Select the desired Diametral Pitch from the drop down box.

·                Select the desired Standard from the drop down box.

·                Enter a value for the face width. To display the recommended minimum face width click on the “?” button.

·                Select the appropriate tooth proportion.

·                Enter or use the spin buttons to change the number of teeth.

·                Select the desired number of threads for the worm. The gear ratio is 1: the number of gear teeth divided by the number of threads.

·                Select the direction of the worm gear. Note: A right hand gear’s teeth lean to the right when its face is placed on a horizontal surface.

·                Check the Create Tooth Pattern if you want the tooth to be patterned. Note: Patterning worm gear teeth can be a time consuming process. You wish to limit the number of teeth created. You may change this value later in SolidWorks.

·                If the Create Tooth Pattern is checked, the Teeth to Draw box becomes enabled. If it is desired to pattern the tooth other than a full pattern then input the number of teeth to be drawn. This can be changed in SolidWorks after the part is drawn simply by editing the definition of the Tooth Pattern.

·                Determine the size of the worm pitch by entering a value for the Worm Pitch Diameter or the Worm Helix Angle.

·                Make any necessary changes to the Hub Mounting.

·                Select Worm w/Gear to model both parts, Worm only to model just the worm or Gear only to model the gear.

·                Click on the Finish button to complete the gear.