Glossary

Main Components for DC Motors

Motor Housing Assembly (stator)

Metal Housing - A metal case to house the magnets and bearings and fix the endcap. It is also responsible for producing a magnetic field using the magnets to chart the flow of magnetic force.

Bearing - This component supports the shaft that is part of the armature assembly and also provides lubrication for the shaft to turn with less friction.

Magnet - The permanent magnet is the key component in producing a magnetic field which in turn produces torque or the turning force of the motor.

Spring Holder - This component fixes the magnet to the housing


Armature Assembly (rotor)

Commutator - The commutator commonly uses copper segments and more recently, graphite. This component comes in contact with the brush to allow curreont to flw through the armature and is responsible for the direction of the current to shift as it spins and slides in contact with the brushes.

Lamination Stack - Composed of stamped sheet metal called laminations, the lamination stack has slots for the magnet wire windings where current can flow.

Magnet Wire - Magnet wires are used as windings for the armature. d. Shaft - The shaft is where the mechanical output characteristics of the motor are measured such as speed and torque. The whole idea of the motor is to provide rotational motion to the shaft.


Endcap Assembly

Brush Holder - The commutator commonly uses copper segments and more recently, graphite. This component comes in contact with the brush to allow curreont to flw through the armature and is responsible for the direction of the current to shift as it spins and slides in contact with the brushes.

Endcap - Composed of stamped sheet metal called laminations, the lamination stack has slots for the magnet wire windings where current can flow.

Magnet Wire - Magnet wires are used as windings for the armature. d. Shaft - The shaft is where the mechanical output characteristics of the motor are measured such as speed and torque. The whole idea of the motor is to provide rotational motion to the shaft.


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