The ball screw is composed of a screw rod, a nut, a steel ball, a pre-compression piece, a steering gear, and an anti-skid piece. Its function...
The notion of energy chain concept has been defined as the trajectory of energy transformations from the fuel source or energy sources to useful...
The modern ball bearing is a circular joint that connects a rotating part to another, usually stationary, part of a machine. It allows the rotating...