Cast ways are diffcult to repair and virtually impossible to replace. Roller ways are lighter weight and operate with less friction, so they can positioned faster and with less energy. Roller way, however, take more space and is usually more costly. And Motors Electric motor are the prime movers for most machine tool functions. A spindle is a motor-driven shaft that both positions and transmits power to a tool or holds a workpiece.
Spindle motors are the major motors on a machine tool, drive the spindle shafts.
Today's most popular positioning motor is technically called a dc brushless motor, more commonly known as an ac servo motor. The rotor is the slide and the stator is a row of windings. It is very lightweight relative to the conventional motor, but less accurate in positioning. Linear Motor to Primer Menu Controls Controls are the brain of all machine tool operation. Earily machine tool relied on operators to turn the wheels and pull the leverthat moved cutting tools and the workpiece.