Product Description:

103H7523-7021 is a Sanyo Denki stepper motor. Stepper motors move in discrete steps. This is unlike the continuous rotation of rotary motors. Movement in defined steps allows precise position control. In contract to position sensors on rotary motors that allow position control, stepper motors allow accurate position without any position sensor. This open-loop control – without feedback systems – is more cost-effective and reduces capital and operating expenditures. Stepper motors are controlled by step drivers that provide electrical pulses for motor control. Each pulse causes the motor to move by a single step and a pulse train can be used to make it advance by a number of steps. Step motors provide high torque at low speeds. The brushless design ensures high reliability and durability. The designed step angle for the 103H7523-7021 motor is 0.72 degrees.

It uses permanent magnets to create the stepped movement. When stationary the motor holds its position and its holding torque is 1.568 Nm. Additional performance specifications include 0.75 Amps per phase rated current, 5.2 Ohms per phase winding resistance, 21 millihenry per phase winding inductance, and 0.423 x 10-4 kg m2 rotor inertia. Mechanical specifications for the 103H7523-7021 motor include 1.1 kilograms weight, 60 millimeters flange size, 85.8 millimeters housing length, 8 millimeters shaft diameter, and 4.5 millimeters mounting hole diameter. There are a total of four mounting holes on the flange at one end of the housing. Operating temperature for the motor and its driver is from 0 to 50 degrees Celsius. The storage temperature is -20 to 70 degrees Celsius. The operating ambient humidity range is 35 to 85% and the storage humidity is from 10 to 90%.