descriptions
Technical Data
Small electric motors are available in both AC and DC types. DC motors offer certain advantages over AC units. They are typically more compact, have a higher power to weight ratio and speed can be controlled by varying the supply voltage.

Several years ago, Igarashi developed an AC motor program based on the design of a DC motor. These motors have the same compact construction as the DC motors and are sometimes even available with an internal rectifying system.

The final specifications can be adapted to customers needs to produce an ideal solution. An individual characteristic curve is provided for each motor based on the operating voltage.

There are 4 curves shown in the diagram:
  • The speed curve (N) that is a straight line and can be shifted parallel to the original curve by increasing or reducing the voltage. The point where the speed curve intersects the x-axis represents the stall torque.
  • The current consumption curve (I) is also a straight line and gives the current consumption from no load to stall.
  • The output power curve (W) shows the power over the torque range.
  • The efficiency curve (%) is a curve that can be calculated as a quotient of the output power and the power consumption over the torque range.

Torque Conversions
  Equals gf cm kgf cm oz in lb in lb ft mNm Ncm Nm
g cm 1.0000 1.0000 0.0010 0.0139 0.0009 0.0001 0.0981 0.0098 0.0001
kgf cm 1.0000 1000.0000 1.0000 13.8874 0.8680 0.0723 98.0665 9.8067 0.0981
oz in 1.0000 72.0081 0.0720 1.0000 0.0625 0.0052 7.0616 0.7062 0.0071
lb in 1.0000 1152.1292 1.1521 16.0000 1.0000 0.0833 112.9849 11.2985 0.1130
lb ft 1.0000 13825.5506 13.8256 192.0000 12.0000 1.0000 1355.8183 135.5818 1.3558
mNm 1.0000 10.1972 0.0102 0.1416 0.0089 0.0007 1.0000 0.1000 0.0010
Ncm 1.0000 101.9720 0.1020 1.4161 0.0885 0.0074 10.0000 1.0000 0.0100
Nm 1.0000 10197.2000 10.1972 141.6119 8.8507 0.7376 1000.0000 100.0000 1.0000