The most reliable means for changing shaft speed remains a mechanical variable-speed transmission. These drives are used to provide a variable output speed from a constant-speed power source (as in a ...

Motors and gear trains with micrometer dimensions and powered by light are fabricated using semiconductor lithography and ...

Gear-driven drawworks have gained greater acceptance in the drilling industry. They achieve improved safety, optimal performance and control, considerable weight re duction, and increased reliability ...

Bafang has just unveiled its new H700 electric bicycle drive system, complete with a dual-speed automatic shifting motor and several other innovations as part of a complete e-bike drive package.

Remember that time 14 months ago when French company Valeo announced the development of a new electric bicycle mid-drive system that included a built-in automatic transmission? Electrek remembers. And ...

Kia America is recalling certain 2025 model year EV9 crossovers equipped with all-wheel drive. Affected vehicles were assembled at Kia Georgia between October 11, 2024 and December 19, 2024 with ...