Types and Features of Motors

• Motor
• Gear motor
• Motor with clutch brake
• Spindle motor
• Circular saw motor

Motor

This is a machine that converts electrical energy into mechanical energy to obtain motive power.
When electricity is passed through cables connected to the terminals, the motor converts the electrical energy into mechanical energy and generates a force (torque) to turn the load on the shaft, which transfers motive power to the corresponding machine.

Typical types of motors

Guide to motor selection

	DC motor (with brushes)	Stepper motor	AC motor (induction motor)
	Power supply: Direct current Easy to use due to excellent controllability and responsiveness. More expensive than AC motors and requires consumable parts (brushes).	Rotation angle is controlled according to the number of input power supply pulses, enabling high-precision control. Response speed is slower than other methods and requires electronic circuits to generate pulses.	Power supply: Alternating current Relatively inexpensive and good for achieving larger sizes and higher outputs.
Long lifespan		○	○
Low-speed rotation		○	○
High efficiency	○
Low cost	○		○
Positioning accuracy		○
Low noise		○	○
High torque	○	○	○
Compact	○	○	○
Usage examples	Fan motors for hair dryers Motors for drill screwdrivers	Paper feed for printers Moving louvers of air conditioners	Compressors Motors for drill presses

Main points

• Check the voltage [single-phase (V)/three-phase (V)] of the power supply [direct current (DC)/alternating current (AC)].
• Check the rotational speed (rpm).
• Check the required torque/output (W).
• Check the mounting method (leg mounting, flange mounting, etc.).

Gear motor

This is a motor integrated with a speed reducer.

Parallel shaft leg mounting type

Features

• A reduction gear is attached to the motor, and this drive unit provides lower revolution and higher torque than the motor alone.
• There are two methods of mounting on the machine: leg-mounted and flange-mounted.

Motor with clutch brake

Features

• This gear motor rotates by a three-phase 200 V power supply and has a clutch brake. It is used when you want to use intermittent driving that repeatedly stops and rotates. There are two types of mounting: leg-mounted and flange-mounted.

Structural drawing

Useful info

Reduction ratio

Main points

• Check the power supply. (single-phase 100 V or three-phase 200 V)
• Check the motor capacity (W).
• Check the rotational speed (rpm).
• Check the reduction ratio.
• Check whether or not a gear motor can be connected to the machine.
• Determine the reduction ratio according to the required rotational speed torque.

Spindle motor

This is a compact motor with the motor and spindle (rotary shaft) integrated into a single structure.
Spindle motor

Features

• The shaft of the induction motor is used as the spindle, etc., to which tools can be attached, eliminating the need to separate the motor and spindle by pulleys, couplings, etc. This leads to more compact machines, improved mechanical accuracy, and cost reductions.

Circular saw motor

Simply inputting 200 V commercial power (50/60 Hz) to the motor causes it to rotate.

Features

• A fitting for attaching a circular saw to the spindle is included.

Types of attachments

Main points

• Check the rotational speed (rpm).
• Check the required torque/output (W).
• Select a blade that is appropriate for the material to be cut.
• Specify the direction that the motor rotates.

Reference: Coco Mite Vol. 2

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