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2. Electric motor - Wikipedia

   en.wikipedia.org/wiki/Electric_motor

   An industrial electric motor . An electric motor is a machine that converts electrical energy into mechanical energy.Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft.

3. Surface grinding - Wikipedia

   en.wikipedia.org/wiki/Surface_grinding

   A surface grinder is a machine tool used to provide precision ground surfaces, either to a critical size or for the surface finish. The typical precision of a surface grinder depends on the type and usage, however ±0.002 mm (±0.0001 in) should be achievable on most surface grinders.

4. Commutator (electric) - Wikipedia

   en.wikipedia.org/wiki/Commutator_(electric)

   For a single armature winding, when the shaft has made one-half complete turn, the winding is now connected so that current flows through it in the opposite of the initial direction. In a motor, the armature current causes the fixed magnetic field to exert a rotational force, or a torque, on the winding to make it turn. In a generator, the ...

5. Single-phase electric power - Wikipedia

   en.wikipedia.org/wiki/Single-phase_electric_power

   Single-phase motors may have taps to allow their use on either 208-volt or 240-volt supply. A single-phase load may be powered directly from a three-phase distribution transformer in two ways: by connection between one phase and neutral or by connection between two phases. These two give different voltages from a given supply.

6. Grinding machine - Wikipedia

   en.wikipedia.org/wiki/Grinding_machine

   Each grain of abrasive on the wheel's surface cuts a small chip from the workpiece via shear deformation. Grinding as a type of machining is used to finish workpieces that must show high surface quality (e.g., low surface roughness) and high accuracy of shape and dimension. As the accuracy in dimensions in grinding is of the order of 0.000025 ...

7. Shaded-pole motor - Wikipedia

   en.wikipedia.org/wiki/Shaded-pole_motor

   A shaded-pole motor is a motor, in which the auxiliary winding is composed of a copper ring or bar surrounding a portion of each pole to produce a weakly rotating magnetic field. [2] When single phase AC supply is applied to the stator winding, due to shading provided to the poles, a rotating magnetic field is generated.

8. Pulverizer - Wikipedia

   en.wikipedia.org/wiki/Pulverizer

   A pulverizer or grinder or flour mill is a mechanical device for the ... power-average density dependence as single-phase liquids. ... of the driving motor, mill ...

9. Squirrel-cage rotor - Wikipedia

   en.wikipedia.org/wiki/Squirrel-cage_rotor

   In 1888, Nikola Tesla received a patent on a two-phase induction motor with a short-circuited copper rotor winding and a two-phase stator winding. Developments of this design became commercially important. In 1889, Mikhail Dolivo-Dobrovolsky developed a wound-rotor induction motor, and shortly afterwards a cage-type rotor winding. By the end of ...