Question: I am a gear engineer for a motor manufacturer in China. I am writing about noise generated from cross-helical gear assembly error. I want to learn the relationship between the misalignment (center distance change and cross-angle shift) and transmission error. It is better under the loading and theory conditions. What is the trend of cross-helical gear development (use ZI worm and involute helical gear, point contact)?

My dear friend Octave’s account of his co-op experience (see Tuesday’s 1-29 post) reinforces my belief that no one should trust an engineer or desi...

The complete Product News section from the January/February issue of Gear Technology.