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When worm-gear speed reducers are assembled, proper alignment of the worm and gear, and the resulting tooth contact pattern, is the most critical assembly variable.

In a previous column, David Dearth, a consulting analyst and president of Applied Analysis & Technology, Huntington Beach, Calif. discussed four ways to handle fasteners and preloads with FEA in assemblies. This article continues by solving a bolt problem by hand and using an FEA program.

Design enhancements improve efficiency and eliminate leaks.

Metal injection molding lets designers create tiny custom hinges for handheld electronics.

Bearings for big loads demand that designers pay special attention to contact area, heat management, and resiliency.

Incorporating hinges early into designs helps keep costs down and options open.

Developments debuted at the Paris Air Show put airliners on a track toward flying more passengers while using less fuel.

Here's how to calculate machine reliability based on the collective life of several bearings.

It takes teamwork to build a car that can drive itself.

To do real work takes a real truck. And that’s exactly what the mighty 2008 Ford F-350 Super Duty gives you.