PartDesign Sprocket

    From FreeCAD Documentation

    PartDesign Sprocket.svg PartDesign Sprocket

    Menu location
    Part Design → Sprocket...
    Default shortcut
    Introduced in version
    See also


    This tool allows you to create a 2D profile of a sprocket (or chainwheel). It can be padded with the PartDesign Pad feature.


    1. Optionally activate the correct body.
    2. Go to the menu Part Design → PartDesign Sprocket.svg Sprocket....
    3. Set the DataNumber Of Teeth and the DataSprocket Reference.
    4. Click OK.
    5. If there was no active body: drag and drop the sprocket into a body for the application of further features like padding.


    • DataNumber Of Teeth: Number of teeth
    • DataSprocket Reference: The sprocket type. A list of sprocket definitions. introduced in version 0.20 The list includes ANSI and ISO-norms as well as some bicycle and motorcycle sprocket definitions.
    • DataPitch: Distance between two teeth
    • DataRoller Diameter: Diameter of the chain rollers the sprocket is designed for
    • DataThickness:The principal thickness of the sprocket. Note: The sprocket cannot just be padded with this thickness because the teeth have side chamfers. Therefore look at the sprocket definition to model a valid 3D sprocket. introduced in version 0.20