Supplier Page - Tsukasa Electric

http://www.tsukasa-d.co.jp/en/index.html

TSUKASA ELECTRIC is a leading supplier of DC geared motors used in a wide range of equipment such as banking and vending machines, medical apparatus, printers and card dispensers. Recognised for their excellent quality the motors are invariably the first choice of many well-known manufacturers.

SPEED AND LOAD CHARACTERISTICS

The relationship between torque vs speed and current is linear as shown left, as the load on the motor increases, speed will decrease. The graph pictured here represents the characteristics of a typical motor.
As long as the motor is used in the area of high efficiency (as represented by the shaded area) long life and good performance can be expected. However, using the motor outside this range will result in high temperature rises and deterioration of motor parts.
If voltage in continuous applied to a motor in a locked rotor condition, the motor will heat up and fail in a relatively short time.
Therefore it is important that there is some form of protection against high temperature rises.
A motor's basic rating point is slightly lower than its maximum efficiency point.
Load torque can be determined by measuring the current drawn when the motor is attached to a machine whose actual load value is known.
We will select the most suitable motor for your application after receiving your information.

AS APPLIED VOLTAGE WILL BE CHANGED

As shown left, if the applied voltage is changed, no load speed and starting torque also change in proportion to the voltage.
Speed characteristics at a given voltage are parallel to those at other voltages.
Thus, a DC motor can be used at a voltage lower than the rated voltage.
But, below 1000 rpm, the speed becomes unstable, and the motor will not run smoothly.

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