How to draw a bevel gear in solidworks

Written by matthew dehaven
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How to draw a bevel gear in solidworks
Learn to draw a bevel gear in Solidworks. (gears image by steve dimitriou from Fotolia.com)

Solidworks is a common CAD program designed for solid modelling. It is commonly used to create three dimensional models of machine components (such as bevel gears) and assemblies. If you are familiar with basic Solidworks functions, you can draw a bevel gear without great difficulty.

Skill level:
Moderate

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Instructions

  1. 1

    Open a new part file. Create a new sketch, and select the Front construction plane. Sketch the cross section of the gear from the centerline to the outer edge. The centerline of the gear should extend up from the origin, and the bottom should extend to the right from the origin. Exit the sketch.

  2. 2

    Select "Revolved Boss/Base" under the Features toolbar, and select the sketch created in Step 1. Select the centre line for "Axis of Revolution." Under "Angle", type "360." Click "OK."

  3. 3

    Create a new sketch, and select the top face of the gear. Sketch a circle at the centre of the face for the shaft hole. Exit the sketch.

  4. 4

    Select "Extruded Cut" under the Features toolbar, and select the sketch created in Step 3. Select "Through All" under "Direction 1." Click "OK."

  5. 5

    Select "Axis" under "Reference Geometry" in the Features toolbar. Select "Two Planes," then select the Right and Top construction planes under "Selections." Click "OK."

  6. 6

    Select "Plane" under "Reference Geometry." Select the Right construction plane under "First Reference." Click on "Angle" and type in the angle between the teeth and the face of the gear (typically 45 degrees). Select the reference axis created in Step 5 under "Second Reference." Click "OK."

  7. 7

    Create a new sketch, and select the reference plane created in Step 6. Sketch a closed pattern defining the space between two teeth, as if it were being cut out. The sketch should extend slightly above the gear surface. Exit the sketch.

  8. 8

    Select "Extruded Cut" under the Features toolbar, and select the sketch created in Step 7. Select "Through All" under "Direction 1." Click the check box by "Direction 2," and select "Through All" there as well. Click "OK."

  9. 9

    Select "Axis" under "Reference Geometry." Select the wall of the hole created in Step 4. Click "OK."

  10. 10

    Select "Circular Pattern" in the Features toolbar.Select the reference axis created in Step 9 under "Pattern Axis." Select the extruded cut created in Step 8 under "Features to Pattern." Type the number of gear teeth in "Number of Instances." Check "Equal Spacing." Click "OK."

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