Precision Motors manufactures Double Stacked Uni-polar Stepper Motor. Precision Motors offers a wide range of stepper and synchronous motors for various industrial applications. The Double Stacked Uni-polar Stepper Motor of model number D-48-42 provides high torque and is suitable for replacing the 1.8 degree steppers with minimal gearing. The Double Stacked Uni-polar Stepper Motor is available with a diameter size of 42 mm.