Whomever made this motor didn't bother putting their name on it. The only marks on the motor are "NE OIL". It runs well on 12 VDC and draws about 250 mA under load. The operating range seems to be 6 to 36 volts. The cool thing is that there is a pickup assembly under the cover on the back : it borrows operating voltage thru a resistor and offers pulses output. We have no data on the pickup but it is apparent it can be used to sense RPM. The unit measures approximately 1.6" x 1.6" and the shaft about 1/2" x 1/16"