Speed reducers are mechanical devices generally used for two purposes. The primary use is to multiply the amount of torque generated by an input power source to increase the amount of usable work.

Most desk fans I have come across have three speeds: Full Speed, Almost Full Speed, and Off – useless if you want just a gentle air movement, and far too noisy if you are trying to get to sleep (in ...

Design enhancements improve efficiency and eliminate leaks. Worm-gear speed reducers have offered a rugged, adaptable, and cost-effective method of power transmission for nearly a century. But their ...