Motor Designations and Their Meanings
Types of our motors are normally designated by a seven-digit code.
The following 3 to 6 digits designate the armature winding specifications.
The meaning of each character or figure is as shown here.
However, since there are some exceptions, contact our sales office for further information.
Click each character or figure of the example to see its meaning.
Shape of motor-housing
Brush construction
Code number for armature diameter
Code number for housing length (mainly)
Number of armature pole
Type of magnet (mainly)
Particular specification for each type of motor
Diameter of magnet wire
Number of turns of armature winding per slot
Source: https://www.mabuchi-motor.com/product/knowledge/classification/designations.html