by DWDesign Gear Factory allows you to easily add standard or custom gears to your Drawing. The gear models created are standard AutoCAD solid models that can be added to your assembly drawing as 3D model or 2D entities.
by MITCalc Geometric design and strength check of spur gear with straight and helical toothing. Application supports Imperial and Metric units, is based on ANSI/AGMA and ISO/DIN standards and support many 2D and 3D CAD systems