Construction Parameters – DC Motors

Coreless and slotless DC motors group a cylindrical winding that is physically external in the permanent magnet assembly. Due to the fact that the winding is laminated and there is no iron cage, DC motors without a core have a much lower inertia. They have great acceleration, efficiency and excellent speed control with little or no vibration. They are commonly used as a servomotor CHM344A for process control applications.

The suitability for an application of a DC motor during the selection process will also depend on its construction. We have three other types:

Permanent magnet direct current motors have a magnet permanently embedded in their on the stator. They feature constant speed with variable load and zero slip and excellent starting torque. Compared to other types, permanent magnet construction provides greater efficiency and lower speed adjustments.

DC motors with disk-shaped armor, also called “pancakes” or “printed disks”, use flat rotors driven by an axially aligned magnetic field. Its fine construction admits low inertia, which results in high acceleration. These motors are good for applications that require rapid startup and shutdown when coupled to a constant load.

Botoxes and manual keys

To switch on or switch off electric motors, to select operating modes or to perform any operation manually, they must have operator-controlled devices. The buttonholes are hand operated devices which have a single resting position, ie after they have been activated they return to their normal position by the spring twist. They are attached to the panel doors so the operator has quick access and has universal fitting, usually three, for NA or NC contact blocks.

Some models have a translucent surface for the socket of lamp sockets, integrating the signal function, other types have a latch so that they remain activated, it is necessary to turn the knob to release and return to the normal position, it is the case of buttons Mushroom-type emergency. The selectors are rotary drive switches which have two or more rest positions. They are used to select operations or make commands on and off machines or processes; They are more commonly called a knob. The flags indicate specific situations, such as power up, defects, or transient operations.