Gear and Gear Assembly Builder

Animation Control:

Speed (RPM):
Set RPM of the selected gear then press enter

Gear Management:

Download Gear File:

Premium Membership Required for File Download Options

DXF, SVG Part and SVG Gear Assembly Available

Gear Orientation and Position:

Parent gear #: Axial connection:
Connection orientation: Auto position:
X position: Y position:

Gear Parameters:

Internal Gear:
Number of teeth (N):
Pitch diameter (D):
Diametral pitch (P):
Pressure Angle (PA):

Display Management:

Scale View:
Background Grid:
Gear Tracks:
Gear Identifier Text:

Saving Your Design:

After you have a working involute gear or Gear Train configuration designed, simply bookmark this webpage with your internet browser and give a unique configuration name. Load that bookmarked configuration to return. You can bookmark/save as many configurations as you want.

Gear Units:

Gear Builder is unitless: simply choose inches, cm or millimeters when opening downloaded files in your CAD software. DXF files opened in CAD software will have the same value for D/P as it is set above or as imported (SI or imperial units). Gears in SVG are measured in pixels, which is the value multiplied with the scale (Pixel per Unit) as it is displayed on the right side.

Related Resources:

Date/Time:

Spur Gear and Assembly Builder

Gear Design and Engineering

Animation Control:

Gear Management:

Download Gear File:

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Gear Orientation and Position:

Gear Parameters:

Display Management:

Saving Your Design:

Gear Units:

Related Resources:

Download Selected Gear in SVG

Download Gear Assembly in SVG

Download Selected Gear DXF CAD file